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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Quality AM radio
Does anyone have a recomendation for a quality AM receiver? I have a
cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP |
#2
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Quality AM radio
On Wed, 11 Oct 2017 20:44:01 -0700, MOP CAP wrote:
Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP I live in a rural area, but it sounds like your cabin is even more rural. No matter what kind of radio you get, you will not get many stations without an outdoor antenna. The good news, for AM, all you really need is a piece of wire strung outside. 20 or more feet of wire between a few sturdy trees works fine, then run it into the house by drilling a 1/4" hole and caulk around it once it's inside. Pretty much any sort of wire will work outdoors, insulated or bare. Use some insulators on the ends. I'd use insulated wire coming in thru the wall. If your AM radio has no antenna connector, but has a telescoping antenna, just coil the wire around the telescoping ant numerous times. I do this in my barns, because they are metal buildings. Without the outdoor wire, I'd get no stations. That wire works for FM too, but not quite as good. If you use trees, be sure to leave some slack in the wire. Trees sway in winds, and if the wire is tight, it may break. |
#3
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Quality AM radio
On 12/10/2017 2:44 PM, MOP CAP wrote:
Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP **Assuming you have no internet capability (the best way to receive AM), then your next best option is to find an old, 1960s vintage, solid state, car radio. Since few car radios had FM capability back then, the AM qualities were excellent. If you have lots of cash, then one of these will provide superb AM performance: http://classichifi.info/SansuiTU-X1.shtml I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. -- Trevor Wilson www.rageaudio.com.au |
#4
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Quality AM radio
On Thursday, October 12, 2017 at 12:31:43 AM UTC-4, Trevor Wilson wrote:
On 12/10/2017 2:44 PM, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP **Assuming you have no internet capability (the best way to receive AM), then your next best option is to find an old, 1960s vintage, solid state, car radio. Since few car radios had FM capability back then, the AM qualities were excellent. If you have lots of cash, then one of these will provide superb AM performance: http://classichifi.info/SansuiTU-X1.shtml I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. -- Trevor Wilson www.rageaudio.com.au I agree with the vintage part Trevor, but I'd go with a typical house radio.. I have a bunch of early 60s AM transistor radios and many of them feature an RF amplifier. An Emerson 911 for instance picks up as good as any radio I've ever had, and they're pretty cheap if you catch one just right. Also, a Select-A-Tenna supposedly works wonders for DXing although I've never tried one: https://www.amazon.com/Select-A-Tenn.../dp/B0015A81HI |
#5
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Quality AM radio
On 10/11/2017 11:44 PM, MOP CAP wrote:
Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP Hello, and you want a radio of requisite sensitivity so you can enjoy the "quality' of AM radio? Can you parse languages other than English? Just kidding. In addition to the advice already provided by others, you might want to check with a seller like C.C. Crane. I assumed by "AM" you meant the medium wave (535-1700 kHz) band. A multi-band "communications" type receiver (with an RF gain control) might be a solution but likely isn't the least expensive one if bought new. In any event, reception using a simple, old-fashioned long wire antenna will most often provide better performance than a built-in telescoping whip antenna. Another possibility is to use a passive (no batteries required) variable capacitor tuned loop antenna. These can be built or bought, can be used indoors, and I've seen them dramatically improve the MW band performance of inexpensive transistor portables. The radio is simply positioned at the base of the loop (radio's internal ferrite loop becomes inductively coupled to the antenna so no wire connection to the radio is required), the radio is tuned in the vicinity of the AM station of interest, and the loop capacitor is adjusted for maximum signal. Sometimes the radio needs to be slightly repositioned to optimize the radio-to-loop coupling. And finally you can rotate the radio and tuned loop together for the strongest reception. Please let us known what works for you. And one last thing: Don't rule out the use of FM (assuming you like whatever program content is being offered) as I've seen situations where AM reception is lousy but FM works. Sincerely, -- J. B. Wood e-mail: |
#6
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Quality AM radio
On Wednesday, October 11, 2017 at 11:44:10 PM UTC-4, MOP CAP wrote:
Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP Mpffff... This is an easy one. If you are looking, primarily, for good reception over top-notch sound (mostly wasted on AM anyway), and this is to be a single-purpose device, look for something like a solid-state GE "Super Radio" or similar. They are fair-enough sounding and far better than average at AM DXing capabilities. Low in cost for very good results. http://www.ebay.com/itm/VINTAGE-GE-S...AOSwbRJZvvX 8 I keep one of these at our summer house that is no slouch at all. The AM band is pretty busy, especially at night. A step up from there would be a multi-band radio such as a Zenith TransOceanic. Of those, the ne-plus-ultra would be the RD7000Y - and why that one? All silicon, has the tunable weather band, and will give you some amusing shortwave capacity. https://www.ebay.com/dsc/i.html?_sac...x_kw=&_in_kw=1 One of these has lived at my work desk for over 20 years. Hard-Core would be a Communications Receiver, something in the Hallicrafters, Collins or National lines - which are a whole different can of worms, do want an outside antenna, and likely will contain tubes rather than transistors. And, one of these will truly separate fly-poop from pepper. Give it an 80' longwire and you will be getting AM from Hawaii - or thereabouts. Peter Wieck Melrose Park, PA |
#7
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Quality AM radio
On Thursday, 12 October 2017 12:32:06 UTC+1, wrote:
On Wednesday, October 11, 2017 at 11:44:10 PM UTC-4, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP Mpffff... This is an easy one. If you are looking, primarily, for good reception over top-notch sound (mostly wasted on AM anyway), and this is to be a single-purpose device, look for something like a solid-state GE "Super Radio" or similar. They are fair-enough sounding and far better than average at AM DXing capabilities. Low in cost for very good results. http://www.ebay.com/itm/VINTAGE-GE-S...AOSwbRJZvvX 8 I keep one of these at our summer house that is no slouch at all. The AM band is pretty busy, especially at night. A step up from there would be a multi-band radio such as a Zenith TransOceanic. Of those, the ne-plus-ultra would be the RD7000Y - and why that one? All silicon, has the tunable weather band, and will give you some amusing shortwave capacity. https://www.ebay.com/dsc/i.html?_sac...x_kw=&_in_kw=1 One of these has lived at my work desk for over 20 years. Hard-Core would be a Communications Receiver, something in the Hallicrafters, Collins or National lines - which are a whole different can of worms, do want an outside antenna, and likely will contain tubes rather than transistors. And, one of these will truly separate fly-poop from pepper. Give it an 80' longwire and you will be getting AM from Hawaii - or thereabouts. Peter Wieck Melrose Park, PA The old Vega/Ocean radios are very cheap dx sets. Some mericans might not like their origins. But don't worry, they don't run Kaspersky. NT |
#8
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Quality AM radio
On Thursday, October 12, 2017 at 9:09:19 AM UTC-4, wrote:
The old Vega/Ocean radios are very cheap dx sets. Some mericans might not like their origins. But don't worry, they don't run Kaspersky. I keep one of these as well - a small hand-held - and, yes, it does very well. Competitive, but not better than my Siemens RK747. They are not easy to find in good condition, nor do they wear well. I paid $2 + about 4 hours of very persnickety work fixing the battery compartment and re-securing the guts on mine. Pure blind luck that it worked at all - but it does, and well.. https://www.doctsf.com/grandlivre/fiche.php?ref=40940 (not mine). But if we are going into Euro-Exotics, the very best consumer-grade DX radio I have in all bands is this one: http://www.ebay.com/itm/Grundig-Sate...UAAOSwls5Y6-Vk The second best is the Zenith RD7000Y (and the best for sound overall). Followed by the Grundig YB500. http://www.ebay.com/itm/GRUNDIG-YATC...AOSwdKZZ2tb Y Point being that the smaller radios have smaller sound - if that is a consideration. Repeat: Communications Receivers are a whole different thing. If the OP wants to pull stations from the moon or Mars, that should definitely be a consideration. |
#9
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Quality AM radio
Thanks all.
CP |
#10
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Quality AM radio
On Thursday, October 12, 2017 at 10:42:32 AM UTC-4, MOP CAP wrote:
Thanks all. CP first depends what you mean by quality, able to hear weak stations? or high fidelity? in either case, the big problem with AM is electrical interference which will sound like buzz noise usually. if you are out in the woods, your own stuff will be the only source so you have a chance to control it light dimmer, wall warts, fluorescent lights computers, all these are potential sources of electrical interference. use a battery operated radio and turn off the electricity and you will be surprised what you can hear especially at night. m |
#11
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Quality AM radio
In sci.electronics.repair, on Thu, 12 Oct 2017 15:31:26 +1100, Trevor
Wilson wrote: On 12/10/2017 2:44 PM, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP **Assuming you have no internet capability (the best way to receive AM), then your next best option is to find an old, 1960s vintage, solid state, car radio. Since few car radios had FM capability back then, the AM qualities were excellent. If you have lots of cash, then one of these will provide superb AM performance: http://classichifi.info/SansuiTU-X1.shtml Quite a radio! But as to the car radio, aren't they so good because of the metal body of the car that surrounds them? A ground plain? Or is that only for FM. I know for FM every car radio I had worked better than every table radio except 1, but I didn't have a chance to compare AM I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. |
#12
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Quality AM radio
On Thursday, October 12, 2017 at 12:04:43 PM UTC-4, micky wrote:
But as to the car radio, aren't they so good because of the metal body of the car that surrounds them? A ground plain? Or is that only for FM. I know for FM every car radio I had worked better than every table radio except 1, but I didn't have a chance to compare AM I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. OK - here is "the deal" about car radios. Keep a few things in mind: a) Moving cars are noisy, very noisy. Noisier than any listening room in your house by a very large margin. b) Cars, in general, are tiny as compared to about any room in your house other than, perhaps, the bathroom. c) Cars move, by their very nature. So they are pretty much always in motion relative to the transmitter by both angle and distance. So, car radio manufacturers worry very, very little about s/n ratios, stereo separation, muting capacity, stereo/mono switching or any of the niceties found on even a relatively simple home tuner. They DO focus on sensitivity and AFC, some even do AVC based on ambient noise within the car. And, the bandwidth of the typical car radio after filtering is pretty wretched in many cases. Meaning: a car radio will *receive* acceptably (for a car) under conditions that would have a decent tuner on full mute - or if the mute is disabled, making so much noise as to be intolerable. Of course, what with HD radio and the concurrent 'cliff effect' of HD listening, how this works is even more obvious. Peter Wieck Melrose Park, PA |
#14
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Quality AM radio
On Thursday, 12 October 2017 19:32:11 UTC+1, micky wrote:
In sci.electronics.repair, on Thu, 12 Oct 2017 06:09:17 -0700 (PDT), tabbypurr wrote: On Thursday, 12 October 2017 12:32:06 UTC+1, wrote: On Wednesday, October 11, 2017 at 11:44:10 PM UTC-4, MOP CAP wrote: I don't have the best antenna. I took 4-wire phone line, solder two pair together at one end and one pair at the radio-end so it goes down and back twice and it was stretched down the stairs. I think I should more it to the attic. I've used lengths of plastic twine at the ends as insulators. Effective, always to hand, easy, cheap. The old Vega/Ocean radios are very cheap dx sets. Some mericans might not like their origins. But don't worry, they don't run Kaspersky. I run Kaspersky but I lie about what I'm doing so when they report back, it will just confuse the Kremlin. |
#15
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Quality AM radio
On Thu, 12 Oct 2017 15:31:26 +1100, Trevor Wilson
wrote: On 12/10/2017 2:44 PM, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP **Assuming you have no internet capability (the best way to receive AM), then your next best option is to find an old, 1960s vintage, solid state, car radio. Since few car radios had FM capability back then, the AM qualities were excellent. If you have lots of cash, then one of these will provide superb AM performance: http://classichifi.info/SansuiTU-X1.shtml I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. I was thinking about using a car radio too. But why limit yourself to AM. Get an AM-FM. AM radios these days are mostly talk shows and religious programming. You;ll get more music on FM. If you know someone who has a junked car, offer them a few bucks for the radio. I'd get the antenna too. Then all you need is a 12V power supply. Those can easily be found. In the 70's nearly everyone had one of them, so they could use an auto CB radio in their house. If your cabin has no electricity, any car battery can be used to power this radio, as long as you can charge it. (Use your car to charge it, if need be). You can mount the car antenna on the roof, but you'll need an extension cable for it. The cords on those car antennas have always been a special cord, and I am not sure what to use to extend it. Maybe someone knows this..... However, a long wire outside is still superior for an antenna. |
#16
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Quality AM radio
On Thu, 12 Oct 2017 14:32:06 -0400, micky
wrote: In sci.electronics.repair, on Thu, 12 Oct 2017 06:09:17 -0700 (PDT), wrote: On Thursday, 12 October 2017 12:32:06 UTC+1, wrote: On Wednesday, October 11, 2017 at 11:44:10 PM UTC-4, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP Mpffff... This is an easy one. If you are looking, primarily, for good reception over top-notch sound (mostly wasted on AM anyway), and this is to be a single-purpose device, look for something like a solid-state GE "Super Radio" or similar. They are fair-enough sounding and far better than average at AM DXing capabilities. Low in cost for very good results. http://www.ebay.com/itm/VINTAGE-GE-S...AOSwbRJZvvX 8 I keep one of these at our summer house that is no slouch at all. The AM band is pretty busy, especially at night. I've heard of the GE Superradio, but didn't think I needed anything more at that time. Is it especially good on FM as well as AM? A step up from there would be a multi-band radio such as a Zenith TransOceanic. Of those, the ne-plus-ultra would be the RD7000Y - and why that one? All silicon, has the tunable weather band, and will give you some amusing shortwave capacity. https://www.ebay.com/dsc/i.html?_sac...x_kw=&_in_kw=1 One of these has lived at my work desk for over 20 years. I still have my 1930 Hallicrafter shortwave, not divided by bands as such, but 4 positions of the switch and continuous tuning from one to another. Hard-Core would be a Communications Receiver, something in the Hallicrafters, Collins or National lines - which are a whole different can of worms, do want an outside antenna, and likely will contain tubes rather than transistors. I don't have the best antenna. I took 4-wire phone line, solder two pair together at one end and one pair at the radio-end so it goes down and back twice and it was stretched down the stairs. I think I should more it to the attic. And, one of these will truly separate fly-poop from pepper. Give it an 80' longwire and you will be getting AM from Hawaii - or thereabouts. Peter Wieck Melrose Park, PA The old Vega/Ocean radios are very cheap dx sets. Some mericans might not like their origins. But don't worry, they don't run Kaspersky. I run Kaspersky but I lie about what I'm doing so when they report back, it will just confuse the Kremlin. NT I thought all phone line wire was twisted pair. If that's the case then I would think your setup would tend to keep radio waves, AKA interference, out. Maybe that's why your antenna isn't working very well. Eric |
#17
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Quality AM radio
On 10/12/2017 2:39 PM, wrote:
You can mount the car antenna on the roof, but you'll need an extension cable for it. The cords on those car antennas have always been a special cord, and I am not sure what to use to extend it. Maybe someone knows this..... It's RG-62 and it's a pain in the ass to work with. -- Jeff-1.0 wa6fwi http://www.foxsmercantile.com |
#18
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Quality AM radio
J.B. Wood wrote:
On 10/11/2017 11:44 PM, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP Hello, and you want a radio of requisite sensitivity so you can enjoy the "quality' of AM radio? Can you parse languages other than English? Just kidding. In addition to the advice already provided by others, you might want to check with a seller like C.C. Crane. I assumed by "AM" you meant the medium wave (535-1700 kHz) band. Right, the AM band, which, regarding radio, is an abbreviation for 'Amplitude Modulation' as opposed to FM (Frequency Modulation). Unless you confuse AM (Ante Meridian) here in this thread to mean morning-time only radio use. |
#19
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Quality AM radio
On 13/10/2017 6:39 AM, wrote:
On Thu, 12 Oct 2017 15:31:26 +1100, Trevor Wilson wrote: On 12/10/2017 2:44 PM, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP **Assuming you have no internet capability (the best way to receive AM), then your next best option is to find an old, 1960s vintage, solid state, car radio. Since few car radios had FM capability back then, the AM qualities were excellent. If you have lots of cash, then one of these will provide superb AM performance: http://classichifi.info/SansuiTU-X1.shtml I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. I was thinking about using a car radio too. But why limit yourself to AM. Get an AM-FM. AM radios these days are mostly talk shows and religious programming. You;ll get more music on FM. If you know someone who has a junked car, offer them a few bucks for the radio. I'd get the antenna too. Then all you need is a 12V power supply. Those can easily be found. In the 70's nearly everyone had one of them, so they could use an auto CB radio in their house. **Almost ANY radio that has an FM section has a really crappy AM section (excepting the Sansui I referenced earlier). Since the early 1970s, manufacturers have pretty much ignored AM radios. There are exceptions, of course, but they are very rare. Here in Australia, for instance, FM transmissions did not begin until the mid 1970s. Hence, there was a thriving business for manufacturers building high quality AM tuners. And trust me: They were very good indeed. Back then, it was possible to deliver sound quality that rivaled FM (mono) under ideal reception conditions. In fact, I have such an AM tuner in my workshop. I never use it, of course. For good AM, you need to find an AM only tuner that was built before FM was really popular. FWIW: The best AM radio I ever heard was my very own, valved, 4 stage TRF, radio, which used an infinite impedance detector. The design was taken from a long-departed New Zealand electronics magazine. I built it as a teenager and the thing sounded glorious. So good, in fact, that I called my local radio station to complain about their 'B' turntable, because I could clearly hear that the stylus was worn/chipped. They thought I was nuts, but swapped out the faulty stylus anyway. -- Trevor Wilson www.rageaudio.com.au |
#20
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Quality AM radio
On 10/12/2017 4:18 PM, Trevor Wilson wrote:
**Almost ANY radio that has an FM section has a really crappy AM section Quite so, I had a Kenwood "system" with separate components. The AM/FM tuner was absolute **** on AM. Single IC "AM subsystem" both sensitivity and selectivity were marginal. When I was "gifted" a Technics home entertainment system, I threw the Kenwood in the trash where it belonged. -- Jeff-1.0 wa6fwi http://www.foxsmercantile.com |
#21
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Quality AM radio
In sci.electronics.repair, on Thu, 12 Oct 2017 12:52:42 -0700,
wrote: On Thu, 12 Oct 2017 14:32:06 -0400, micky wrote: In sci.electronics.repair, on Thu, 12 Oct 2017 06:09:17 -0700 (PDT), wrote: On Thursday, 12 October 2017 12:32:06 UTC+1, wrote: On Wednesday, October 11, 2017 at 11:44:10 PM UTC-4, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP Mpffff... This is an easy one. If you are looking, primarily, for good reception over top-notch sound (mostly wasted on AM anyway), and this is to be a single-purpose device, look for something like a solid-state GE "Super Radio" or similar. They are fair-enough sounding and far better than average at AM DXing capabilities. Low in cost for very good results. http://www.ebay.com/itm/VINTAGE-GE-S...AOSwbRJZvvX 8 I keep one of these at our summer house that is no slouch at all. The AM band is pretty busy, especially at night. I've heard of the GE Superradio, but didn't think I needed anything more at that time. Is the GE Superradio especially good on FM as well as AM? ,,,,, Hard-Core would be a Communications Receiver, something in the Hallicrafters, Collins or National lines - which are a whole different can of worms, do want an outside antenna, and likely will contain tubes rather than transistors. I don't have the best antenna. I took 4-wire phone line, solder two pair together at one end and one pair at the radio-end so it goes down and back twice and it was stretched down the stairs. I think I should more it to the attic. And, one of these will truly separate fly-poop from pepper. Give it an 80' longwire and you will be getting AM from Hawaii - or thereabouts. Counting back and forth twice, it's 80' or a little more. Maybe I should shorten it to 80' ??? Peter Wieck The old Vega/Ocean radios are very cheap dx sets. Some mericans might not like their origins. But don't worry, they don't run Kaspersky. I run Kaspersky but I lie about what I'm doing so when they report back, it will just confuse the Kremlin. I thought all phone line wire was twisted pair. All the indoor phone wire I've seen has been 4-wire untwisted. Red, yellow, black, and green. If that's the case then I would think your setup would tend to keep radio waves, AKA interference, out. Maybe that's why your antenna isn't working very well. Eric Thanks but it's not twisted. My next-door neighbor is, but that's another story. |
#22
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Quality AM radio
In sci.electronics.repair, on Thu, 12 Oct 2017 14:39:48 -0500,
wrote: On Thu, 12 Oct 2017 15:31:26 +1100, Trevor Wilson wrote: On 12/10/2017 2:44 PM, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP **Assuming you have no internet capability (the best way to receive AM), then your next best option is to find an old, 1960s vintage, solid state, car radio. Since few car radios had FM capability back then, the AM qualities were excellent. If you have lots of cash, then one of these will provide superb AM performance: http://classichifi.info/SansuiTU-X1.shtml I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. I was thinking about using a car radio too. But why limit yourself to AM. Get an AM-FM. AM radios these days are mostly talk shows and religious programming. You;ll get more music on FM. If you know someone who has a junked car, offer them a few bucks for the radio. I'd get the antenna too. Then all you need is a 12V power supply. Those can easily be found. In the 70's nearly everyone had one of them, so they could use an auto CB radio in their house. If your cabin has no electricity, any car battery can be used to power this radio, as long as you can charge it. (Use your car to charge it, if need be). You can mount the car antenna on the roof, but you'll need an extension cable for it. The cords on those car antennas have always been a special cord, and I am not sure what to use to extend it. Maybe someone knows this..... https://www.ebay.com/i/191802218181?chn=ps&dispItem=1 12 Foot Auto Antenna Extension Cord Male Female $6.49 and free shipping to the US but he also ships to Shipping to: United States, Canada, Australia, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian Federation, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, Ukraine, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Panama, Trinidad and Tobago, Guatemala, El Salvador, Honduras, Jamaica Although then he excludes the whole world: Excludes: Africa, Asia, Central America and Caribbean, Europe, Middle East, North America, Oceania, Southeast Asia, South America OR https://www.ebay.com/i/141820947090?chn=ps&dispItem=1 20FT ANTENNA EXTENSION CABLE CAR STEREO MALE FEMALE PLUG AM/FM $9.60 Free Shipping Another one on ebay was 24 feet. https://www.amazon.com/Metra-44-EC20.../dp/B0007WQ8MU Metra 44-EC204 204-Inch Antenna Extension Cable $9.27 & FREE Shipping on orders over $25. (sort of like the drug dealers that give you the first one free.) However, a long wire outside is still superior for an antenna. We don't know where the cabin is. Or what kind of programming the OP wants to listen to. I'd get am/fm to because I listen to talk mostly. If he's in the hills or mountains he might have great line-of-sight. |
#23
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Quality AM radio
On Fri, 13 Oct 2017 08:18:13 +1100, Trevor Wilson
wrote: On 13/10/2017 6:39 AM, wrote: On Thu, 12 Oct 2017 15:31:26 +1100, Trevor Wilson wrote: On 12/10/2017 2:44 PM, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP **Assuming you have no internet capability (the best way to receive AM), then your next best option is to find an old, 1960s vintage, solid state, car radio. Since few car radios had FM capability back then, the AM qualities were excellent. If you have lots of cash, then one of these will provide superb AM performance: http://classichifi.info/SansuiTU-X1.shtml I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. I was thinking about using a car radio too. But why limit yourself to AM. Get an AM-FM. AM radios these days are mostly talk shows and religious programming. You;ll get more music on FM. If you know someone who has a junked car, offer them a few bucks for the radio. I'd get the antenna too. Then all you need is a 12V power supply. Those can easily be found. In the 70's nearly everyone had one of them, so they could use an auto CB radio in their house. **Almost ANY radio that has an FM section has a really crappy AM section (excepting the Sansui I referenced earlier). Since the early 1970s, manufacturers have pretty much ignored AM radios. There are exceptions, of course, but they are very rare. Here in Australia, for instance, FM transmissions did not begin until the mid 1970s. Hence, there was a thriving business for manufacturers building high quality AM tuners. And trust me: They were very good indeed. Back then, it was possible to deliver sound quality that rivaled FM (mono) under ideal reception conditions. In fact, I have such an AM tuner in my workshop. I never use it, of course. For good AM, you need to find an AM only tuner that was built before FM was really popular. FWIW: The best AM radio I ever heard was my very own, valved, 4 stage TRF, radio, which used an infinite impedance detector. The design was taken from a long-departed New Zealand electronics magazine. I built it as a teenager and the thing sounded glorious. So good, in fact, that I called my local radio station to complain about their 'B' turntable, because I could clearly hear that the stylus was worn/chipped. They thought I was nuts, but swapped out the faulty stylus anyway. I can understand what you're saying, but to enjoy it, you first need radio stations worth listening to. You may have it completely different in Australia, but where I live, AM is just talk radio (mostly politics), or religious stuff. For that, who needs quality sound? I do have to compliment a local station though. For years there were about a dozen FM stations that all played country music. (It seems that when you live in a rural area, they think everyone listens to country music). That station recently started an AM station that plays oldies rock, pop, and some country too. All from the 50s thru the 90s. Thats the first time I listened to AM in many years. Since wer are talking AM radio. I recall back in the 90s or was it the early 2000s, they were working on AM Stereo. What ever happened to that? I have not heard anything about it in years. Ok, now i have to ask..... What kind of music do the kangaroos prefer to listen to in Australia? They claim that cattle prefer country music in America, but when I was working for a dairy farm, I changed the radio to a rock station and the cows seemed happier..... (However, the owner of the farm was not real pleased). |
#24
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Quality AM radio
wrote:
---------------------------- I can understand what you're saying, but to enjoy it, you first need radio stations worth listening to. You may have it completely different in Australia, but where I live, AM is just talk radio (mostly politics), or religious stuff. For that, who needs quality sound? ** Australian AM radio is also dominated by talk / talk back programs. There is some music still and the government broadcaster (the ABC) keeps the signal pretty clean and wide band - up to 12kHz at most. Since wer are talking AM radio. I recall back in the 90s or was it the early 2000s, they were working on AM Stereo. What ever happened to that? I have not heard anything about it in years. ** No longer in use, but AM stereo receivers give top sound quality in mono long as you have a strong local signal. Ok, now i have to ask..... What kind of music do the kangaroos prefer to listen to in Australia? ** Has to be " hip-hop " of course ..... ..... Phil |
#25
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Quality AM radio
wrote:
---------------------------- I can understand what you're saying, but to enjoy it, you first need radio stations worth listening to. You may have it completely different in Australia, but where I live, AM is just talk radio (mostly politics), or religious stuff. For that, who needs quality sound? ** Australian AM radio is also dominated by talk / talk back programs. There is some music still and the government broadcaster (the ABC) keeps the signal pretty clean and wide band - up to 12kHz at most. Since wer are talking AM radio. I recall back in the 90s or was it the early 2000s, they were working on AM Stereo. What ever happened to that? I have not heard anything about it in years. ** No longer in use, but AM stereo receivers give top sound quality in mono long as you have a strong local signal. Ok, now i have to ask..... What kind of music do the kangaroos prefer to listen to in Australia? ** Has to be " hip-hop " of course ..... ..... Phil |
#26
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Quality AM radio
On Thursday, October 12, 2017 at 5:18:34 PM UTC-4, Trevor Wilson wrote:
FWIW: The best AM radio I ever heard was my very own, valved, 4 stage TRF, radio, which used an infinite impedance detector. The design was taken from a long-departed New Zealand electronics magazine. I built it as a teenager and the thing sounded glorious. So good, in fact, that I called my local radio station to complain about their 'B' turntable, because I could clearly hear that the stylus was worn/chipped. They thought I was nuts, but swapped out the faulty stylus anyway. -- Trevor Wilson www.rageaudio.com.au LOL! They must have hated getting phone calls like that. Is there a schematic anywhere on line for that circuit? GE Super Radios, they're really good, but the one I have is not quite as sensitive as some of the vintage 8 transistor AM battery radios that I have squirreled away. The Emerson 911 I cited is basically an 8 transistor with a push pull output section. For a small radio it has decent tone. It has an RF amplifier and a separate oscillator and mixer. Since most people don't DX AM for music, it's clear and toney enough. They were also made in large enough numbers that they can be had fairly cheaply, but most vintage domestic radios of the time that were an honest 8 transistor design are very sensitive. Pretty much any leather cased Zenith, Motorola, Admiral and RCA radios of the early 60s are excellent performers, and the larger of them have really nice tone. BTW, I remember repairing a 60s Japanese transistor radio that had the transistor count proudly printed on the front of the radio (either 6 or 8 - can't remember), but two of the transistors had a leg cut off and used as diodes. Technically they were transistors but sheesh. |
#27
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Quality AM radio
Just a few things in general from questions asked:
a) GE Super Radios are very good general consumer radios with excellent AM and FM capacities. b) I am a bit of a collector of radios, with one foot pretty deep into Audio as well. So, I have a large number of comparison points from the 1920s through the 1990s. Of all of those, the best AM reception I get (without an external antenna) is on my Zenith RD7000Y TransOceanic. With an external antenna, it would be the Hallicrafters SX16. The Halli is a beast in weight, takes an external speaker, lots-O-real estate and will heat a small room in the winter. It is also my only communications receiver - chosen because I tripped over it (no kidding) at a flea-market, the seller was an old friend, and the price was right. Tied for second place: Grundig Satellit 700 and my B600L TransOceanic. Tied for third place: The GE, YB500 and H500 TransOceanic. All of the above are very good radios, all but the GE designed specifically with DXing in mind, and really with very little to choose between them. The GE is a happy accident of good design and good execution resulting in a pretty hot radio. On the audio side, I own two component tuners with AM sections. The Soundcraftsmen T100 AM section is an unhappy joke. I can get the local torches reasonably well (KYW being one). But no real distance. On the other hand, the Dynaco AF6 is not half-bad for AM. I have never tried it with other than the ferrite antenna on board, but I suspect it may have hidden depths with a very good antenna. It also helped that I aligned it for AM when I got it. Being able to do AM and SW alignments is a side benefit of the hobby, but does give me a good base for judgment. But, if an inexpensive, reasonably well sounding stand-alone portable radio is desired - the GE Super Radio is a fine option with not a half-bad FM section as well. Peter Wieck Melrose Park, PA |
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Quality AM radio
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#29
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Quality AM radio
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#30
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Quality AM radio
BTW, I remember repairing a 60s Japanese transistor radio that had the
transistor count proudly printed on the front of the radio (either 6 or 8 - can't remember), but two of the transistors had a leg cut off and used as diodes. Technically they were transistors but sheesh. Back then many of the transistor radios had a transistor or more used as a diode. Guess that was a big selling point for them as to how many transistors a radio had. Just like the watches of the time had so many jewels in them. Yes, it was a competitive advantage for advertising purposes. And, the manufacturers could use "bad" transistors for this - ones which had failed the test for one reason or another, had an open emitter or open collector, etc. They could get these cheaply, or use the bad ones out of a large lot they'd bought in bulk. |
#31
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Quality AM radio
Another thing about crappy AM is bandwidth. Normally it is narrow and will not reproduce the highs well. I guess they were going for selectivity and lower noise. With FM the frequency response remains but a narrow bandwidth IF will increase distortion. Some high end FM tuners had switchable bandwidth which allowed for the lower distortion (especially in stereo) when set to wide and better selectivity when set to narrow. I remember seeing an AM with that feature but for the life of me can't remember what make or model. I think it had shortwave.
If you want talk radio shortwave is the way to go, especially the forbidden band. I don't know exactly what frequencies are forbidden but all you have to do is look at the in the stores or read the specs, you will find frequency ranges missing. The politically incorrect go there, like American Dissident Voices. Those bands are omitted ostensibly because the programming is US based and intended for non-domestic audiences. The same FCC are the ones that mandated tuners must have both AM and FM. This is one reason, people with separate tuners want high fidelity and are not concerned with AM. |
#32
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Quality AM radio
On Friday, October 13, 2017 at 2:51:46 PM UTC-4, wrote:
I remember seeing an AM with that feature but for the life of me can't remember what make or model. I think it had shortwave. The Zenith RD7000Y has that feature as well as a BFO. Peter Wieck Melrose Park, PA |
#33
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Quality AM radio
On 13/10/2017 10:23 PM, John-Del wrote:
On Thursday, October 12, 2017 at 5:18:34 PM UTC-4, Trevor Wilson wrote: FWIW: The best AM radio I ever heard was my very own, valved, 4 stage TRF, radio, which used an infinite impedance detector. The design was taken from a long-departed New Zealand electronics magazine. I built it as a teenager and the thing sounded glorious. So good, in fact, that I called my local radio station to complain about their 'B' turntable, because I could clearly hear that the stylus was worn/chipped. They thought I was nuts, but swapped out the faulty stylus anyway. -- Trevor Wilson www.rageaudio.com.au LOL! They must have hated getting phone calls like that. Is there a schematic anywhere on line for that circuit? **I knew that question was coming. I am pretty certain I still have the original magazine stored away somewhere (well, I know approximately where). One day, I will dig it out, scan it and post. How long does copyright hold sway? 75 years? Could be a problem, though I suspect no one who was every involved in the magazine is on the right side of the dirt anymore. GE Super Radios, they're really good, but the one I have is not quite as sensitive as some of the vintage 8 transistor AM battery radios that I have squirreled away. The Emerson 911 I cited is basically an 8 transistor with a push pull output section. For a small radio it has decent tone. It has an RF amplifier and a separate oscillator and mixer. Since most people don't DX AM for music, it's clear and toney enough. They were also made in large enough numbers that they can be had fairly cheaply, but most vintage domestic radios of the time that were an honest 8 transistor design are very sensitive. Pretty much any leather cased Zenith, Motorola, Admiral and RCA radios of the early 60s are excellent performers, and the larger of them have really nice tone. BTW, I remember repairing a 60s Japanese transistor radio that had the transistor count proudly printed on the front of the radio (either 6 or 8 - can't remember), but two of the transistors had a leg cut off and used as diodes. Technically they were transistors but sheesh. **My old man had this really fancy, National Panasonic, three band, two speaker, 12 transistor radio, back when I was a kid. We used it on caravan holidays. When is was about 12, I acquired this really ancient, Australian made 7 transistor radio. I was built on a chassis, that was clearly derived from a portable valve radio by the same manufacturer. The transistors were inserted into grommets, then mounted in the holes that would have been punched for the valve sockets. The thing was amazing. Superior sensitivity than the old man's fancy Jap set and significantly better sound quality (big old 7" X 5" oval speaker). Still have that too. -- Trevor Wilson www.rageaudio.com.au |
#34
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Quality AM radio
On 13/10/2017 5:28 PM, wrote:
On Fri, 13 Oct 2017 08:18:13 +1100, Trevor Wilson wrote: On 13/10/2017 6:39 AM, wrote: On Thu, 12 Oct 2017 15:31:26 +1100, Trevor Wilson wrote: On 12/10/2017 2:44 PM, MOP CAP wrote: Does anyone have a recomendation for a quality AM receiver? I have a cabin in the low Sierras and have trouble receiving AM. I would prefer one that would not require an outside antenna. Thanks, CP **Assuming you have no internet capability (the best way to receive AM), then your next best option is to find an old, 1960s vintage, solid state, car radio. Since few car radios had FM capability back then, the AM qualities were excellent. If you have lots of cash, then one of these will provide superb AM performance: http://classichifi.info/SansuiTU-X1.shtml I had one on the bench last year. Surprisingly impressive and quite sophisticated (even has a synchronised detector!) AM section. A bit much for a cabin radio though. I was thinking about using a car radio too. But why limit yourself to AM. Get an AM-FM. AM radios these days are mostly talk shows and religious programming. You;ll get more music on FM. If you know someone who has a junked car, offer them a few bucks for the radio. I'd get the antenna too. Then all you need is a 12V power supply. Those can easily be found. In the 70's nearly everyone had one of them, so they could use an auto CB radio in their house. **Almost ANY radio that has an FM section has a really crappy AM section (excepting the Sansui I referenced earlier). Since the early 1970s, manufacturers have pretty much ignored AM radios. There are exceptions, of course, but they are very rare. Here in Australia, for instance, FM transmissions did not begin until the mid 1970s. Hence, there was a thriving business for manufacturers building high quality AM tuners. And trust me: They were very good indeed. Back then, it was possible to deliver sound quality that rivaled FM (mono) under ideal reception conditions. In fact, I have such an AM tuner in my workshop. I never use it, of course. For good AM, you need to find an AM only tuner that was built before FM was really popular. FWIW: The best AM radio I ever heard was my very own, valved, 4 stage TRF, radio, which used an infinite impedance detector. The design was taken from a long-departed New Zealand electronics magazine. I built it as a teenager and the thing sounded glorious. So good, in fact, that I called my local radio station to complain about their 'B' turntable, because I could clearly hear that the stylus was worn/chipped. They thought I was nuts, but swapped out the faulty stylus anyway. I can understand what you're saying, but to enjoy it, you first need radio stations worth listening to. You may have it completely different in Australia, but where I live, AM is just talk radio (mostly politics), or religious stuff. For that, who needs quality sound? **True enough. Most AM is not worth listening to. Back in the early 1970s (don't forget: We did not have FM back then), I used to visit my girlfriend and we would snuggle (well, **** our brains out, actually) in her parents lounge room, with the light off, listening to 2CH. 2CH was this station that played 'easy listening' music. Nothing too serious, but great to snuggle by. I have my bedside radio (a DAB+ one) tuned to them. DAB+ is, for all intents, on a portable radio, as good as FM. http://www.2ch.com.au/ Most of the other AM stations are occupied by right wing 'shock-jocks', whose combined IQ doesn't reach room temperature. I do have to compliment a local station though. For years there were about a dozen FM stations that all played country music. (It seems that when you live in a rural area, they think everyone listens to country music). That station recently started an AM station that plays oldies rock, pop, and some country too. All from the 50s thru the 90s. Thats the first time I listened to AM in many years. Since wer are talking AM radio. I recall back in the 90s or was it the early 2000s, they were working on AM Stereo. What ever happened to that? I have not heard anything about it in years. **Dunno if anyone bothers anymore. Certainly not here in Oz. DAB+ or internet radio is pretty much dominant. And FM, of course. Ok, now i have to ask..... What kind of music do the kangaroos prefer to listen to in Australia? **I see that Phil has provided you with the correct answer. They claim that cattle prefer country music in America, but when I was working for a dairy farm, I changed the radio to a rock station and the cows seemed happier..... (However, the owner of the farm was not real pleased). **Oh well. -- Trevor Wilson www.rageaudio.com.au |
#35
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Quality AM radio
In sci.electronics.repair, on Fri, 13 Oct 2017 11:06:09 -0400, Ralph
Mowery wrote: In article , says... BTW, I remember repairing a 60s Japanese transistor radio that had the transistor count proudly printed on the front of the radio (either 6 or 8 - can't remember), but two of the transistors had a leg cut off and used as diodes. Technically they were transistors but sheesh. Back then many of the transistor radios had a transistor or more used as a diode. Guess that was a big selling point for them as to how many transistors a radio had. Just like the watches of the time had so many jewels in them. A friend and I were talking for the first time about watch jewels just 2 hours ago. Yours is the first reference I've seen to watch jewels in years. I think they might still be talking about watch jewels if digital hadn't arrived, though there were tuning fork watches. Didn't they have gears? It seems to me only the balance wheel (is that it?) and two or three gears beyone it turn enough to need jewels. ???? |
#36
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Quality AM radio
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#37
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Quality AM radio
In sci.electronics.repair, on Sat, 14 Oct 2017 08:38:43 +1100, Trevor
Wilson wrote: **My old man had this really fancy, National Panasonic, three band, two speaker, 12 transistor radio, back when I was a kid. We used it on caravan holidays. When is was about 12, I acquired this really ancient, Australian made 7 transistor radio. I was built on a chassis, that was clearly derived from a portable valve radio by the same manufacturer. The transistors were inserted into grommets, then mounted in the holes that would have been punched for the valve sockets. The thing was amazing. Superior sensitivity than the old man's fancy Jap set and significantly better sound quality (big old 7" X 5" oval speaker). Still have that too. Not nearly as difficult, but somewhere I got a console record player from the 30's or 40' and I removed the ~10" woofer and hte small speaker (not sure what it takes to qualify as a tweeter) and mounted them on a board in a corner of the bathroom ceiling. Got great sound, maybe partly becuase of the tile walls. That was 1975. I've moved once and I'm using it in the new place but the TV might have a week audio. Sound is not loud enough. I have to change tvs. I take showers in another bathroom and never take steamy baths, but still after 42 years the tan burlap that I used as grill cloth has discolored. -- Trevor Wilson www.rageaudio.com.au |
#38
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Quality AM radio
In article ,
wrote: If you want talk radio shortwave is the way to go, especially the forbidden band. I don't know exactly what frequencies are forbidden but all you have to do is look at the in the stores or read the specs, you will find frequency ranges missing. The politically incorrect go there, like American Dissident Voices. Those bands are omitted ostensibly because the programming is US based and intended for non-domestic audiences. The only "forbidden" frequencies (as far as radio receiption goes) I've ever heard of, are the UHF frequencies used by the older-generation (analog) cellular phone systems. The FCC prohibited (and still prohibits) making general-purpose radio receivers that can tune to them, reportedly due to influence from the cellphone companies who could then claim that these phone systems were "secure". As far as shortwave goes... I have never heard of the FCC, or anyone in this country somehow "forbidding" radios from receiving any of these frequencies. Just doing a quick look at multi-band receivers on the market today (a quick web search), most of those which offer shortwave at all have continuous coverage from below 2 MHz up to 22 MHz or more (many to 30 MHz which is the nominal end of the "high frequency" radio range and hence where "short wave" is usually considered to end). Above 30 MHz, long-distance (e.g. international) signal transmission is difficult and unpredictable... it depends a lot on the state of the ionosphere, which depends on the solar cycle and time of day. The same FCC are the ones that mandated tuners must have both AM and FM. Can you cite the regulation in which they actually mandated this? I've never heard of it. Ditto for the "forbidden frequencies" - where are the laws or regulations which "forbid" them? |
#39
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Quality AM radio
"where are the laws or
regulations which "forbid" them? " Poor choice of words, there probably is no actual law or regulation, but for some reason manufacturers omit those frequencies. There is something though because years ago the FCC was considering pulling a station's license because their programming "appeared to be intended for domestic audiences". Need I mention that the station was full of dissidents who were very critical of the US government ? |
#40
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Quality AM radio
"Can you cite the regulation in which they actually mandated this?
I've never heard of it. " The both AM and FM thing I remember distinctly due to my exposure to high fidelity. I'm pretty sure it was in the 1970s. A quick Google does not turn up anything on it though, but that is not uncommon. Much of this older stuff was simply never archived. Suffice it to say I didn't make it up. I didn't imagine it. I wonder if I could at least get the date from archives of High Fidelity magazine, to which I subscribed for a time. They used Hirsch-Houck (sp) labs to test everything and though AM was no big deal they tested it anyway to see if the manufacturer was lying in the manual. Of course the consistently found poor performance, but then they didn't lie about it. The AM section was there, I bet some people never ever used it. These old laws and regulations can be hard to find. We've heard about the crazy laws like against French kissing in public, that you can only beat your Wife on Sunday and all that, but that info is from specialty sites. To find them on an actual government site can be nerve wracking. |
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