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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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Well, I was bored and curious...so if you've been wondering what's
inside this (or probably almost any other) HD Radio tuner, here it is: (warning: the following link contains large quantities of pictures and is therefore not friendly to those who have bandwidth caps or are charged on a "quantity of data transferred" basis) http://greyghost.mooo.com/hdtunetakeapart/ It's not quite finished yet, some items need more explanation. I haven't verified the clock rate of the DSP but believe it to be correct. I also need to upload the larger photos and add the navigation links to the page. But for those who are curious, it ought to do for now. No tuners were harmed in the making of this page or in the exploration. By the way, I have been completely unimpressed by the performance of this tuner. (I'm so glad I paid nowhere near the retail price!) I'd recommend you look at something else if you want to listen to HD radio. William |
#2
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William R. Walsh m wrote:
No tuners were harmed in the making of this page or in the exploration. By the way, I have been completely unimpressed by the performance of this tuner. (I'm so glad I paid nowhere near the retail price!) I'd recommend you look at something else if you want to listen to HD radio. William My local BB has sold the tuner for $70 compared to the normal $99. I have been thinking of buying one for some time, what are your complaints and do you have a recommendation for a better unit? |
#3
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![]() "Meat Plow" wrote in message ... On Fri, 05 Mar 2010 09:36:23 -0600, "William R. Walsh" mwrote: Well, I was bored and curious...so if you've been wondering what's inside this (or probably almost any other) HD Radio tuner, here it is: (warning: the following link contains large quantities of pictures and is therefore not friendly to those who have bandwidth caps or are charged on a "quantity of data transferred" basis) http://greyghost.mooo.com/hdtunetakeapart/ It's not quite finished yet, some items need more explanation. I haven't verified the clock rate of the DSP but believe it to be correct. I also need to upload the larger photos and add the navigation links to the page. But for those who are curious, it ought to do for now. No tuners were harmed in the making of this page or in the exploration. By the way, I have been completely unimpressed by the performance of this tuner. (I'm so glad I paid nowhere near the retail price!) I'd recommend you look at something else if you want to listen to HD radio. William What is HD radio? To stupid to use Google, little man? |
#4
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Hi!
What is HD radio? HD Radio is the digital radio broadcast standard in the US. It's a development from a company known as iBiquity. iBiquity primarily functions as a licensor of the technology to others. HD Radio broadcasts are delivered alongside the current analog AM or FM broadcasts, and on the same frequencies. http://en.wikipedia.org/wiki/HD_Radio Outside of the US, other methods are used, such as Digital Audio Broadcasting (DAB) or Digital Radio Mondiale (DRM). William |
#5
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Hi!
My local BB has sold the tuner for $70 compared to the normal $99. I think they might be coming to the realization that perhaps the units aren't selling all that well. In my travels to Best Buy, I've never seen anyone buying one, nor have I seen anyone looking at the demonstrator unit on the shelf. I bought mine from a liquidator for $30 as a scratch and dent item. It has a few scratches and one minor dent, so I was not disappointed. ;-) I have been thinking of buying one for some time, what are your complaints and do you have a recommendation for a better unit? It's (very) cheaply made. I also wrote a product review which I will be posting this afternoon. I'll post a link when I do. But for now, and outside of the cheapness, I'd have to say that its tuner section is deaf in terms of sensitivity. It can't even pick up analog stations that numerous other radios in the vicinity (including a cheap boombox and a clock radio) had no problem receiving. All of these stations are no more than 30-35 miles from my location, and many are closer. I moved my testing upstairs to see if it would produce any improvement and it did not. Later, when I moved it to its final location, I noticed that whenever the NS-HDTUNE was powered, it caused a lot of interference with the FM tuner on the stereo receiver I intended to use it with. If that's the way things are, I'll just use the tuner in the receiver. It's a much better tuner anyway. I was using a Radio Shack powered AM/FM indoor antenna with the unit, and that same antenna works well with assorted stereo receivers. Sony is the only other company I know to be offering a standalone HD Radio tuner. I have not tried theirs yet, as I haven't seen it offered for sale other than online. William |
#6
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Hi!
So you pay 100 bucks for a receiver and get to listen to the same commercial broadcast but now in near CD quality sound? I guess you could say that, but I'm not sure that a good analog FM signal wouldn't already qualify as "near CD quality" sound...especially on a good tuner. I wanted to see what HD Radio was about (especially the subchannels), but I wasn't about to pay any $100 to do so! After looking inside, I'm convinced that someone is doing a pretty good job at inflating the price! Being one that listens to music on the road I got really disgusted with the ever increasing amount of commercials. Me too. And it's hard to find what I want to hear on the radio anyway. Stations seem so mercurial in their format changes any more...what format was on the radio an hour ago might not be there later... My solution has been to use an iPod, plugged into a cassette shell adapter or stereo miniplug to RCA connector cable. It's a beautiful thing to have on a long road trip. Before I had an iPod, I'd stick an old laptop under the seat and let it rip through the same cassette shell adapter. The battery held it for most trips, and when it didn't, I already had a power inverter handy. I also never hear a bad song that way. I haven't subscribed to satellite radio mainly because I can't listen to it on just any old receiver. So far as I know, I'd have to take the same receiver everywhere, and that's just an invitation for me to lose/misplace it. William |
#7
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#8
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On Fri, 05 Mar 2010 11:24:05 -0500, Meat Plow wrote:
On Fri, 05 Mar 2010 09:36:23 -0600, "William R. Walsh" omwrote: Well, I was bored and curious...so if you've been wondering what's inside this (or probably almost any other) HD Radio tuner, here it is: (warning: the following link contains large quantities of pictures and is therefore not friendly to those who have bandwidth caps or are charged on a "quantity of data transferred" basis) http://greyghost.mooo.com/hdtunetakeapart/ It's not quite finished yet, some items need more explanation. I haven't verified the clock rate of the DSP but believe it to be correct. I also need to upload the larger photos and add the navigation links to the page. But for those who are curious, it ought to do for now. No tuners were harmed in the making of this page or in the exploration. By the way, I have been completely unimpressed by the performance of this tuner. (I'm so glad I paid nowhere near the retail price!) I'd recommend you look at something else if you want to listen to HD radio. William What is HD radio? Asked Meathead, the village idiot. What a moron, doesn't know what simple things like HD radio is. Hey, Meathead, try Google or Bing. |
#9
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Hi!
Asked Meathead, the village idiot. Oh for cryin' out loud...don't you have *anything* better to do? Isn't the purpose of this group to ask electronics related questions and get answers? Sure, a web search can answer the question. So can this group, and I don't think it unreasonable that they do! I don't know how many people have heard HD Radio or even really care about it. I don't know anyone who has an HD Radio tuner, nor have I seen one in my adventures. William |
#10
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On Sat, 6 Mar 2010 01:18:46 -0600, "William R. Walsh"
m wrote: Hi! Asked Meathead, the village idiot. Oh for cryin' out loud...don't you have *anything* better to do? Isn't the purpose of this group to ask electronics related questions and get answers? Sure, a web search can answer the question. So can this group, and I don't think it unreasonable that they do! I don't know how many people have heard HD Radio or even really care about it. I don't know anyone who has an HD Radio tuner, nor have I seen one in my adventures. William William, a resident net-nanny, lives a quiet secluded life, without any contact with the real world. |
#11
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Hi!
William, a resident net-nanny, lives a quiet secluded life, without any contact with the real world. Heh. Not hardly. Nice troll, though. Have a great day. :-) William |
#12
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Hi!
I have a receiver permanently mounted in my SUV. It transmits it's signal over the FM broadcast band into the SUV's radio on whatever freq I want. On occasion when I travel other stations overpowered the sat receiver so I just took the FM antenna off the SUV. I had that happen with an iPod to FM modulator type of device, but it didn't wire directly into the antenna connection. Its output was quiet, which doubled the shock when something overpowered it. I didn't pull the antenna because every time I have, it's proven difficult to get it back on tightly enough that it won't work loose. I'd hate for it to go flying off at speed. I already had the cassette player (what can I say, other than I'm "old school", having made mix tapes up until recently) so I just went to using a cassette shell as I always had for that direct line-in connection. The sat receiver has an option to use an external wire antenna so it can transmit its signal further. That's an interesting idea, especially since it is powerful enough to get into your house and play on radios there. Perhaps one of these days when I have a little more money going spare, I might look into satellite radio. A few years ago I saw a nice Samsung satellite radio receiver/recorder but didn't buy it because it was so expensive. It had either flash memory or a small hard drive to record to, and they claimed it was good for several hours worth of recording, as well as timed recording. I may try to climb up the disused TV antenna mast today and see what will be required to get it going again. If there isn't an FM trap up there, I expect it could be used as some kind of FM antenna for the HD Radio tuner. William |
#13
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![]() "Meat Plow" wrote in message ... On Fri, 05 Mar 2010 11:49:56 -0600, "William R. Walsh" mwrote: Hi! So you pay 100 bucks for a receiver and get to listen to the same commercial broadcast but now in near CD quality sound? I guess you could say that, but I'm not sure that a good analog FM signal wouldn't already qualify as "near CD quality" sound...especially on a good tuner. I wanted to see what HD Radio was about (especially the subchannels), but I wasn't about to pay any $100 to do so! After looking inside, I'm convinced that someone is doing a pretty good job at inflating the price! Being one that listens to music on the road I got really disgusted with the ever increasing amount of commercials. Me too. And it's hard to find what I want to hear on the radio anyway. Stations seem so mercurial in their format changes any more...what format was on the radio an hour ago might not be there later... My solution has been to use an iPod, plugged into a cassette shell adapter or stereo miniplug to RCA connector cable. It's a beautiful thing to have on a long road trip. Before I had an iPod, I'd stick an old laptop under the seat and let it rip through the same cassette shell adapter. The battery held it for most trips, and when it didn't, I already had a power inverter handy. I also never hear a bad song that way. I haven't subscribed to satellite radio mainly because I can't listen to it on just any old receiver. So far as I know, I'd have to take the same receiver everywhere, and that's just an invitation for me to lose/misplace it. William I have a receiver permanently mounted in my SUV. It transmits it's signal over the FM broadcast band into the SUV's radio on whatever freq I want. On occasion when I travel other stations overpowered the sat receiver so I just took the FM antenna off the SUV. The sat receiver has an option to use an external wire antenna so it can transmit its signal further. When my vehicle is parked in the garage the signal transmits into my home and FM receivers in my bedroom and living room. (snip) So you have the nuclear powered Sirius radio that gets reception in your garage? Idiot, satellite radio is line of sight. Wont work in a garage, under a bridge, or under anything that obstructs line of sight. DOH! |
#14
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![]() "Meat Plow" wrote in message ... On Sat, 6 Mar 2010 21:34:52 -0600, "Klaatu" wrote: "Meat Plow" wrote in message ... On Fri, 05 Mar 2010 11:49:56 -0600, "William R. Walsh" mwrote: Hi! So you pay 100 bucks for a receiver and get to listen to the same commercial broadcast but now in near CD quality sound? I guess you could say that, but I'm not sure that a good analog FM signal wouldn't already qualify as "near CD quality" sound...especially on a good tuner. I wanted to see what HD Radio was about (especially the subchannels), but I wasn't about to pay any $100 to do so! After looking inside, I'm convinced that someone is doing a pretty good job at inflating the price! Being one that listens to music on the road I got really disgusted with the ever increasing amount of commercials. Me too. And it's hard to find what I want to hear on the radio anyway. Stations seem so mercurial in their format changes any more...what format was on the radio an hour ago might not be there later... My solution has been to use an iPod, plugged into a cassette shell adapter or stereo miniplug to RCA connector cable. It's a beautiful thing to have on a long road trip. Before I had an iPod, I'd stick an old laptop under the seat and let it rip through the same cassette shell adapter. The battery held it for most trips, and when it didn't, I already had a power inverter handy. I also never hear a bad song that way. I haven't subscribed to satellite radio mainly because I can't listen to it on just any old receiver. So far as I know, I'd have to take the same receiver everywhere, and that's just an invitation for me to lose/misplace it. William I have a receiver permanently mounted in my SUV. It transmits it's signal over the FM broadcast band into the SUV's radio on whatever freq I want. On occasion when I travel other stations overpowered the sat receiver so I just took the FM antenna off the SUV. The sat receiver has an option to use an external wire antenna so it can transmit its signal further. When my vehicle is parked in the garage the signal transmits into my home and FM receivers in my bedroom and living room. (snip) So[SLAP] So wank off, fen-sucked ****wit. And meatball responds with an insult, but doesn't tell us how he gets satellite radio while his vehicle is parked in the garage. |
#15
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On Fri, 05 Mar 2010 09:36:23 -0600, "William R. Walsh"
m wrote: http://greyghost.mooo.com/hdtunetakeapart/ Very nice. A photo of the unit before disection might be useful. This might help with the Atmel tuner: http://www.planetanalog.com/showArticle.jhtml?articleID=172303061 http://www.atmel.com/dyn/resources/prod_documents/doc4994s.pdf TI and Atmel partnered on the design. TI does the screaming media decoding. Atmel does the analog RF and conventional AM/FM decoding. So, did it work when you put it back together? How many spare screws? -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#16
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On Sat, 6 Mar 2010 21:34:52 -0600, "Klaatu" wrote:
So you have the nuclear powered Sirius radio that gets reception in your garage? Idiot, satellite radio is line of sight. Wont work in a garage, under a bridge, or under anything that obstructs line of sight. DOH! Try again... Both Sirius and XM have terrestrial repeaters to fill in dead spots in metropolitan areas, where tall buildings get in the way. http://www.dogstarradio.com/sirius_map.php XM Repeaters around Washington DC: http://www.xm411.com/phpbb/album_pic.php?pic_id=9 Google Earth map of XM repeaters circa 2007: http://802.11junk.com/jeffl/kml/XM-repeaters.kmz (borrowed from Mike of xm411.com) Some photos of XM terrestrial repeaters. http://ednixon.com/pix/2001/harvardownstairs/ http://ednixon.com/pix/2001/xmharvard/ http://www.telebeans.org/tmp/xm/XM-cabinet.jpg -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#17
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On Sun, 7 Mar 2010 10:31:51 -0600, "Klaatu" wrote:
And meatball responds with an insult, but doesn't tell us how he gets satellite radio while his vehicle is parked in the garage. It would be quite easy to do even without terrestrial repeaters. Put a 2.3GHz antenna on the roof of the garage. Install a 2.3GHz RF amplifier at this antenna. 10-20dB gain should be easy. Run coax cable into the garage and hang another 2.3GHz antenna somewhere. The two antennas should be fairly directional and not face each other to avoid oscillation. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#18
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![]() "Jeff Liebermann" wrote in message ... On Sat, 6 Mar 2010 21:34:52 -0600, "Klaatu" wrote: So you have the nuclear powered Sirius radio that gets reception in your garage? Idiot, satellite radio is line of sight. Wont work in a garage, under a bridge, or under anything that obstructs line of sight. DOH! Try again... Both Sirius and XM have terrestrial repeaters to fill in dead spots in metropolitan areas, where tall buildings get in the way. http://www.dogstarradio.com/sirius_map.php XM Repeaters around Washington DC: http://www.xm411.com/phpbb/album_pic.php?pic_id=9 Google Earth map of XM repeaters circa 2007: http://802.11junk.com/jeffl/kml/XM-repeaters.kmz (borrowed from Mike of xm411.com) Some photos of XM terrestrial repeaters. http://ednixon.com/pix/2001/harvardownstairs/ http://ednixon.com/pix/2001/xmharvard/ http://www.telebeans.org/tmp/xm/XM-cabinet.jpg -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 I'm well aware of the repeaters, and all meat head has to do is say that's how he receives his satellite signal thru solid walls. Instead he resorts to insult and internet babble. |
#19
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On Sun, 7 Mar 2010 10:31:51 -0600, "Klaatu" wrote:
"Meat Plow" wrote in message ... On Sat, 6 Mar 2010 21:34:52 -0600, "Klaatu" wrote: So[SLAP] So wank off, fen-sucked ****wit. And meatball responds with an insult, but doesn't tell us how he gets satellite radio while his vehicle is parked in the garage. Meathead, a child in a man's body, doesn't have a vheicle, or a radio. |
#20
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On Sun, 07 Mar 2010 09:19:59 -0800 Jeff Liebermann
wrote in Message id: : [...] How many spare screws? Those aren't spares, those are inventory for the next job when you come up short. |
#21
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On Mon, 08 Mar 2010 05:13:19 -0500, JW wrote:
On Sun, 07 Mar 2010 09:19:59 -0800 Jeff Liebermann wrote in Message id: : [...] How many spare screws? Those aren't spares, those are inventory for the next job when you come up short. I have a office carpet that lives on a diet of small hardware. Drop anything onto the carpet, and it will immediately be injested by the carpet, never to be seen again. The carpet is very much a picky eater as it will ocassionally regurgitate a few of the larger items. I find it necessary to regularly feed the carpet a ration of screws and washers in the hope that it will be satiated and not devour anything important. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#22
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On Fri, 5 Mar 2010 16:34:59 +0000 (UTC), root
wrote: William R. Walsh m wrote: No tuners were harmed in the making of this page or in the exploration. By the way, I have been completely unimpressed by the performance of this tuner. (I'm so glad I paid nowhere near the retail price!) I'd recommend you look at something else if you want to listen to HD radio. William My local BB has sold the tuner for $70 compared to the normal $99. I have been thinking of buying one for some time, what are your complaints and do you have a recommendation for a better unit? I bought one of these tuners from Best Buy liquidation. The main problem I have is, at least once a week, when the unit is first turned on, it won't receive a signal. Since unplugging it for 10 seconds makes it functional again, I haven't tried to repair it. Sensitivity on my sample isn't great, but no worse than the average for modern tuners. Chuck |
#23
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Hi!
Very nice. A photo of the unit before disection might be useful. Ask and ye shall receive. Okay, it's not a "before" picture, but the unit is back together and on my stereo shelf. http://greyghost.mooo.com/nshdt-review/audiostack.jpg (564x446, 52KB) The "scratch and dent" damage comes mainly from a scrape across the top cover that disrupts the paint. The case is minorly "kabonged" but that was easy enough to fix with some careful work in the garage. The stereo receiver below the tuner is an Insignia HS-R2000 and I find it to be an excellent piece of equipment. http://greyghost.mooo.com/nsr2000-review/ TI and Atmel partnered on the design. TI does the screaming media decoding. Atmel does the analog RF and conventional AM/FM decoding. Interesting to know. I didn't turn that up in my research (at least not that I remember). I am surprised by the presence of the Atmel tuner. Atmel is not the first name that comes to mind when I think "radio tuner IC"...more like "microcontroller" or "FPGA". So, did it work when you put it back together? How many spare screws? No HD Radio tuners were harmed in the making of that teardown. Despite the obviously less than ideal environment, nothing was harmed, no screws were lost and none were left over. William |
#24
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Hi!
I have a office carpet that lives on a diet of small hardware. Drop anything onto the carpet, and it will immediately be injested by the carpet, never to be seen again. The carpet is very much a picky eater as it will ocassionally regurgitate a few of the larger items. I find it necessary to regularly feed the carpet a ration of screws and washers in the hope that it will be satiated and not devour anything important. May you never have to put a vacuum cleaner across it. The shrapnel may be terrific. :-D William |
#25
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On Mon, 08 Mar 2010 12:51:43 -0500, Meat Plow wrote:
On Sun, 07 Mar 2010 09:37:18 -0800, Jeff Liebermann wrote: On Sat, 6 Mar 2010 21:34:52 -0600, "Klaatu" wrote: So you have the nuclear powered Sirius radio that gets reception in your garage? Idiot, satellite radio is line of sight. Wont work in a garage, under a bridge, or under anything that obstructs line of sight. DOH! Try again... Both Sirius and XM have terrestrial repeaters to fill in dead spots in metropolitan areas, where tall buildings get in the way. http://www.dogstarradio.com/sirius_map.php Besides that Jeff, Sirius penetrates my gararage roof just fine. And I can take the radio inside and get decent reception through the ceiling and roof in certain spots. But there is a time period of a minute or so that when one sat goes out of range and the other comes in range that is shaded so the signal drops out where as outside there isn't an issue. Sirius works differently from XM and is generally a better system in marginal areas. There are 3 RF channels around 2.3GHz. Two come from each of the two satellites. The 3rd from terrestrial repeaters. The Sirius receiver decodes all 3 channels simultaneously and conglomerates the usable data (which creates a 4 second delay). XM uses 6 carriers but only decodes 2 carriers (to save power and CPU horsepower). The satellites also follow a rather odd figure 8 pattern over the Americas, which results in signal strengths changing over the day: http://en.wikipedia.org/wiki/Sirius_Satellite_Radio#Satellite_technology If you have a wooden roof on your garage, I'm not surprised that Sirius works inside. However, if you live in a concrete and steel apartment building, where the garage is under the building, I suspect you're hearing a terrestrial repeater. -- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 # http://802.11junk.com # http://www.LearnByDestroying.com AE6KS |
#26
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On Mon, 8 Mar 2010 13:55:34 -0600, "William R. Walsh"
m wrote: Hi! Not high enough. I have a office carpet that lives on a diet of small hardware. Drop anything onto the carpet, and it will immediately be injested by the carpet, never to be seen again. The carpet is very much a picky eater as it will ocassionally regurgitate a few of the larger items. I find it necessary to regularly feed the carpet a ration of screws and washers in the hope that it will be satiated and not devour anything important. May you never have to put a vacuum cleaner across it. The shrapnel may be terrific. That's the way I usually find the screws. When I run the vacuum cleaner, I usually hear little pings and clunks as the vacuum cleaner inhales the screws. It's usually a lost cause trying to fish them out of the dust bag. I have a magnetized iron bar that I sometime drag across the carpet. It's made for picking up nails at construction sites and works fairly well. When that doesn't work, I have a Bissell 150 mechanical floor sweeper: http://www.bissell.com/ProductDetail.aspx?id=2981 where I can easily fish the screws out of the catch bin. Another trick I use requires a flashlight. I shine the light *across* the carpet. Anything higher than the carpet surface will cast an easily visible shadow. -- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 # http://802.11junk.com # http://www.LearnByDestroying.com AE6KS |
#27
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On Tue, 09 Mar 2010 07:44:01 -0500, Meat Plow wrote:
I wish there was a repeater here. Sorry but your 3 wish limit has been reached. Please find another genie that grants wishes. Hint: They like their bottles rubbed. I would probably add a second receiver for inside the home so I could use a remote control. See my rant on how to build a repeater. Just a rooftop antenna, 30dB amplifier, and inside antenna. Since it's one way, it's easy. Wi-Fi components can be used. I've built two of these for indoor GPS use at 1.575GHz that work fairly well (multipath causes problems). Make sure the rooftop antenna is LHCP (left hand circular polarization), has some gain and is pointed in the correct general direction. Straight up is *NOT* the right way. See instructions at: http://www.tss-radio.com/images/sirius_externalAntenna.pdf Some Wi-Fi antennas will work, but you'll loose -3dB due to the differences between LHCP and linear polarization. The problem with terrestrial repeaters is that they belch plenty of RF power at 2.3Ghz. That rips up 2.4GHz wi-fi communications near the repeater. I had to relocate one wi-fi link thanks to the addition of a new repeater. I've never had problems with reception in the garage even with 2 feet of snow on the roof. I'm aware of the figure 8 orbit of the two birds. Did some research on them and they are made by Loral. Future birds are going to have something more than an unfolding 36" parabolic for an antenna. But I think you have XM and Sirius mixed up. From what I've read Sirius uses the 4ghz spectrum and XM the 2 ghz. But hell I could be wrong, wont be the first or last. Nope. They're both on 2.3GHz. Wikipedia has a mention of 4Ghz somewhere, but that's wrong. You can buy aftermarket antennas that claim to work with both, which is an important clue. I could lookup the assignments on the FCC pages, but not now. Incidentally, the uplink and downlink to the terrestrial repeaters are on Ku band. The repeaters do NOT repeat the 2.3GHz transmissions to improve reliability. I ditched XM back in 2005 because the signal was so bad unless you were out in the open. I couldn't even drive down a road with tall trees on each side without losing reception. I have portable receivers for both but neither is activated. I don't need the service for signal checking, coverage checking, and doing installs. Besides, I only listen to my own music, 1960's acid rock, New Age and classical, none of which I like when I tried their programming. An iPod Touch 2G keeps me entertaining. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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![]() "Meat Plow" wrote in message ... On Tue, 09 Mar 2010 18:18:23 -0500, Meat Plowwrote: On Tue, 09 Mar 2010 09:59:52 -0800, Jeff Liebermann wrote: On Tue, 09 Mar 2010 07:44:01 -0500, Meat Plow wrote: I wish there was a repeater here. Sorry but your 3 wish limit has been reached. Please find another genie that grants wishes. Hint: They like their bottles rubbed. I would probably add a second receiver for inside the home so I could use a remote control. See my rant on how to build a repeater. Just a rooftop antenna, 30dB amplifier, and inside antenna. Since it's one way, it's easy. Wi-Fi components can be used. I've built two of these for indoor GPS use at 1.575GHz that work fairly well (multipath causes problems). Make sure the rooftop antenna is LHCP (left hand circular polarization), has some gain and is pointed in the correct general direction. Straight up is *NOT* the right way. See instructions at: http://www.tss-radio.com/images/sirius_externalAntenna.pdf Some Wi-Fi antennas will work, but you'll loose -3dB due to the differences between LHCP and linear polarization. The problem with terrestrial repeaters is that they belch plenty of RF power at 2.3Ghz. That rips up 2.4GHz wi-fi communications near the repeater. I had to relocate one wi-fi link thanks to the addition of a new repeater. I've never had problems with reception in the garage even with 2 feet of snow on the roof. I'm aware of the figure 8 orbit of the two birds. Did some research on them and they are made by Loral. Future birds are going to have something more than an unfolding 36" parabolic for an antenna. But I think you have XM and Sirius mixed up. From what I've read Sirius uses the 4ghz spectrum and XM the 2 ghz. But hell I could be wrong, wont be the first or last. Nope. They're both on 2.3GHz. Wikipedia has a mention of 4Ghz somewhere, but that's wrong. You can buy aftermarket antennas that claim to work with both, which is an important clue. I could lookup the assignments on the FCC pages, but not now. Incidentally, the uplink and downlink to the terrestrial repeaters are on Ku band. The repeaters do NOT repeat the 2.3GHz transmissions to improve reliability. I ditched XM back in 2005 because the signal was so bad unless you were out in the open. I couldn't even drive down a road with tall trees on each side without losing reception. I have portable receivers for both but neither is activated. I don't need the service for signal checking, coverage checking, and doing installs. Besides, I only listen to my own music, 1960's acid rock, New Age and classical, none of which I like when I tried their programming. An iPod Touch 2G keeps me entertaining. I'll look into the repeater. Shouldn't cost much. I guess this is where klaatu leaves the thread in shame. crickets Not at all. I just find your statement of receiving satellite radio in a garage to be suspect. I just don't believe its happening without a repeater. |
#29
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Hi!
crickets Sure has been an interesting discussion to watch, though! I'd not have expected it to lead this way, but it just goes to show that you never know... William |
#30
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On Tue, 09 Mar 2010 18:18:23 -0500, Meat Plow wrote:
I'll look into the repeater. Shouldn't cost much. Not a repeater. Amplificator. See various products at: http://www.pixelsatradio.com/products.htm Yep... cheap. Incidentally, I blundered across this photo of the FM-5 bird antenna: http://www.orbitcast.com/archives/a-look-at-the-sirius-fm-5-satellite-advanced-antenna-reflector.html Wow! I guess this is where klaatu leaves the thread in shame. Nope. Such threads never end and there is never a clear winner. We're already into the accusations and excuses. Soon, we'll degenerate into name calling and character assassination. The idea is not to win the discussion, but to leave evidence for later readers to misquote and recycle. Garbage in, never out. Marginally relevant rant on Usenet characters: http://802.11junk.com/jeffl/crud/genesis.txt -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#31
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In article ,
William R. Walsh m wrote: I am surprised by the presence of the Atmel tuner. Atmel is not the first name that comes to mind when I think "radio tuner IC"...more like "microcontroller" or "FPGA". They absorbed Temic, a.k.a. Telefunken's IC operation. They did at least a half a dozen "single chip radio" parts. Atmel's website is where I ended up when I was looking for the IC datasheet to repair an '80s vintage GE under the shelf digital clock radio. Mark Zenier Googleproofaddress(account:mzenier provider:eskimo domain:com) |
#32
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![]() "Meat Plow" wrote in message ... On Wed, 10 Mar 2010 13:03:56 -0600, "Klaatu" wrote: "Meat Plow" wrote in message ... On Tue, 09 Mar 2010 18:18:23 -0500, Meat Plowwrote: On Tue, 09 Mar 2010 09:59:52 -0800, Jeff Liebermann wrote: On Tue, 09 Mar 2010 07:44:01 -0500, Meat Plow wrote: I wish there was a repeater here. Sorry but your 3 wish limit has been reached. Please find another genie that grants wishes. Hint: They like their bottles rubbed. I would probably add a second receiver for inside the home so I could use a remote control. See my rant on how to build a repeater. Just a rooftop antenna, 30dB amplifier, and inside antenna. Since it's one way, it's easy. Wi-Fi components can be used. I've built two of these for indoor GPS use at 1.575GHz that work fairly well (multipath causes problems). Make sure the rooftop antenna is LHCP (left hand circular polarization), has some gain and is pointed in the correct general direction. Straight up is *NOT* the right way. See instructions at: http://www.tss-radio.com/images/sirius_externalAntenna.pdf Some Wi-Fi antennas will work, but you'll loose -3dB due to the differences between LHCP and linear polarization. The problem with terrestrial repeaters is that they belch plenty of RF power at 2.3Ghz. That rips up 2.4GHz wi-fi communications near the repeater. I had to relocate one wi-fi link thanks to the addition of a new repeater. I've never had problems with reception in the garage even with 2 feet of snow on the roof. I'm aware of the figure 8 orbit of the two birds. Did some research on them and they are made by Loral. Future birds are going to have something more than an unfolding 36" parabolic for an antenna. But I think you have XM and Sirius mixed up. From what I've read Sirius uses the 4ghz spectrum and XM the 2 ghz. But hell I could be wrong, wont be the first or last. Nope. They're both on 2.3GHz. Wikipedia has a mention of 4Ghz somewhere, but that's wrong. You can buy aftermarket antennas that claim to work with both, which is an important clue. I could lookup the assignments on the FCC pages, but not now. Incidentally, the uplink and downlink to the terrestrial repeaters are on Ku band. The repeaters do NOT repeat the 2.3GHz transmissions to improve reliability. I ditched XM back in 2005 because the signal was so bad unless you were out in the open. I couldn't even drive down a road with tall trees on each side without losing reception. I have portable receivers for both but neither is activated. I don't need the service for signal checking, coverage checking, and doing installs. Besides, I only listen to my own music, 1960's acid rock, New Age and classical, none of which I like when I tried their programming. An iPod Touch 2G keeps me entertaining. I'll look into the repeater. Shouldn't cost much. I guess this is where klaatu leaves the thread in shame. crickets Not at all. I just find your statement of receiving satellite radio in a garage to be suspect. I just don't believe its happening without a repeater. That's because now you're back pedaling and trying to save face. Your claim that it won't penetrate a wooden roof has been refuted. My claim that it does has been verified to be plausible. Now back away from the PC and do a little research before you bust into another thread and make yourself look like even more of a know-nothing asshole. No. I have three vehicles, all with Sirius. Two are after-market, one factory. None have them have ever worked when pulled into my garage, wooden roof with asphalt shingles, no ceiling, nothing above them except roof. The one in the Caddy (Xact Visor) will lose signal going down a tree lined lane in the summer time. No repeaters in my rural area. I find you're statement that satellite radio will work in a covered area to be highly suspect. And I can only assume that you've discovered how to use Google. |
#33
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Klaatu wrote:
"Meat Plow" wrote in message ... On Wed, 10 Mar 2010 13:03:56 -0600, "Klaatu" wrote: "Meat Plow" wrote in message ... On Tue, 09 Mar 2010 18:18:23 -0500, Meat Plowwrote: On Tue, 09 Mar 2010 09:59:52 -0800, Jeff Liebermann wrote: On Tue, 09 Mar 2010 07:44:01 -0500, Meat Plow wrote: I wish there was a repeater here. Sorry but your 3 wish limit has been reached. Please find another genie that grants wishes. Hint: They like their bottles rubbed. I would probably add a second receiver for inside the home so I could use a remote control. See my rant on how to build a repeater. Just a rooftop antenna, 30dB amplifier, and inside antenna. Since it's one way, it's easy. Wi-Fi components can be used. I've built two of these for indoor GPS use at 1.575GHz that work fairly well (multipath causes problems). Make sure the rooftop antenna is LHCP (left hand circular polarization), has some gain and is pointed in the correct general direction. Straight up is *NOT* the right way. See instructions at: http://www.tss-radio.com/images/sirius_externalAntenna.pdf Some Wi-Fi antennas will work, but you'll loose -3dB due to the differences between LHCP and linear polarization. The problem with terrestrial repeaters is that they belch plenty of RF power at 2.3Ghz. That rips up 2.4GHz wi-fi communications near the repeater. I had to relocate one wi-fi link thanks to the addition of a new repeater. I've never had problems with reception in the garage even with 2 feet of snow on the roof. I'm aware of the figure 8 orbit of the two birds. Did some research on them and they are made by Loral. Future birds are going to have something more than an unfolding 36" parabolic for an antenna. But I think you have XM and Sirius mixed up. From what I've read Sirius uses the 4ghz spectrum and XM the 2 ghz. But hell I could be wrong, wont be the first or last. Nope. They're both on 2.3GHz. Wikipedia has a mention of 4Ghz somewhere, but that's wrong. You can buy aftermarket antennas that claim to work with both, which is an important clue. I could lookup the assignments on the FCC pages, but not now. Incidentally, the uplink and downlink to the terrestrial repeaters are on Ku band. The repeaters do NOT repeat the 2.3GHz transmissions to improve reliability. I ditched XM back in 2005 because the signal was so bad unless you were out in the open. I couldn't even drive down a road with tall trees on each side without losing reception. I have portable receivers for both but neither is activated. I don't need the service for signal checking, coverage checking, and doing installs. Besides, I only listen to my own music, 1960's acid rock, New Age and classical, none of which I like when I tried their programming. An iPod Touch 2G keeps me entertaining. I'll look into the repeater. Shouldn't cost much. I guess this is where klaatu leaves the thread in shame. crickets Not at all. I just find your statement of receiving satellite radio in a garage to be suspect. I just don't believe its happening without a repeater. That's because now you're back pedaling and trying to save face. Your claim that it won't penetrate a wooden roof has been refuted. My claim that it does has been verified to be plausible. Now back away from the PC and do a little research before you bust into another thread and make yourself look like even more of a know-nothing asshole. No. I have three vehicles, all with Sirius. Two are after-market, one factory. None have them have ever worked when pulled into my garage, wooden roof with asphalt shingles, no ceiling, nothing above them except roof. The one in the Caddy (Xact Visor) will lose signal going down a tree lined lane in the summer time. No repeaters in my rural area. I find you're statement that satellite radio will work in a covered area to be highly suspect. And I can only assume that you've discovered how to use Google. Has nobody tried to do these short connections using IR or visible light? No legal problems, and no interference problems....... Years ago I did some experimenting with a ten by ten array of cheap IR diodes, AM modulated at 1MHZ, and sending the ac foto current of the receiver into the antenne inpust of a 10 dollar AM radio to receive/amplify the signal(choose frequency to use a quiet place in the band). Rather promishing results. |
#34
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![]() "Meat Plow" wrote in message ... On Thu, 11 Mar 2010 13:07:11 -0600, "Klaatu" wrote: "Meat Plow" wrote in message ... On Wed, 10 Mar 2010 13:03:56 -0600, "Klaatu" wrote: "Meat Plow" wrote in message ... On Tue, 09 Mar 2010 18:18:23 -0500, Meat Plowwrote: On Tue, 09 Mar 2010 09:59:52 -0800, Jeff Liebermann wrote: On Tue, 09 Mar 2010 07:44:01 -0500, Meat Plow wrote: I wish there was a repeater here. Sorry but your 3 wish limit has been reached. Please find another genie that grants wishes. Hint: They like their bottles rubbed. I would probably add a second receiver for inside the home so I could use a remote control. See my rant on how to build a repeater. Just a rooftop antenna, 30dB amplifier, and inside antenna. Since it's one way, it's easy. Wi-Fi components can be used. I've built two of these for indoor GPS use at 1.575GHz that work fairly well (multipath causes problems). Make sure the rooftop antenna is LHCP (left hand circular polarization), has some gain and is pointed in the correct general direction. Straight up is *NOT* the right way. See instructions at: http://www.tss-radio.com/images/sirius_externalAntenna.pdf Some Wi-Fi antennas will work, but you'll loose -3dB due to the differences between LHCP and linear polarization. The problem with terrestrial repeaters is that they belch plenty of RF power at 2.3Ghz. That rips up 2.4GHz wi-fi communications near the repeater. I had to relocate one wi-fi link thanks to the addition of a new repeater. I've never had problems with reception in the garage even with 2 feet of snow on the roof. I'm aware of the figure 8 orbit of the two birds. Did some research on them and they are made by Loral. Future birds are going to have something more than an unfolding 36" parabolic for an antenna. But I think you have XM and Sirius mixed up. From what I've read Sirius uses the 4ghz spectrum and XM the 2 ghz. But hell I could be wrong, wont be the first or last. Nope. They're both on 2.3GHz. Wikipedia has a mention of 4Ghz somewhere, but that's wrong. You can buy aftermarket antennas that claim to work with both, which is an important clue. I could lookup the assignments on the FCC pages, but not now. Incidentally, the uplink and downlink to the terrestrial repeaters are on Ku band. The repeaters do NOT repeat the 2.3GHz transmissions to improve reliability. I ditched XM back in 2005 because the signal was so bad unless you were out in the open. I couldn't even drive down a road with tall trees on each side without losing reception. I have portable receivers for both but neither is activated. I don't need the service for signal checking, coverage checking, and doing installs. Besides, I only listen to my own music, 1960's acid rock, New Age and classical, none of which I like when I tried their programming. An iPod Touch 2G keeps me entertaining. I'll look into the repeater. Shouldn't cost much. I guess this is where klaatu leaves the thread in shame. crickets Not at all. I just find your statement of receiving satellite radio in a garage to be suspect. I just don't believe its happening without a repeater. That's because now you're back pedaling and trying to save face. Your claim that it won't penetrate a wooden roof has been refuted. My claim that it does has been verified to be plausible. Now back away from the PC and do a little research before you bust into another thread and make yourself look like even more of a know-nothing asshole. No[SLAP] I could care less what you have, bitch. Go away I'm not interested in your lies. Welcome to my kill filter until you sock up as someone else. Ah yes, of course, mindless immature insults. Typical. Poor meat head. |
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