Low Power FM Transmitter?
 

Hello.

I am aware this may not be the most correct group for this question, but
there are often some here who may know the answer.


I would like to transmit an FM signal at, say, the 88 end of the dial at a
power just strong enough to get around an acre or three out here in the
country. I don't know what the power regulations are (and don't care too
much as there aren't many folks around) but so long as I can listen to the
signal on an FM radio nearby I'd be happy.

Is there a transmitter available for cheap such as a HAM unit of some sort
that maybe can cross over slightly or something? I know that FM radio is in
the middle of the TV band, but is there room there that is used by some
other communication that I could maybe run without an antenna so as to not
walk the signal further than right here?

Does a poorly tuned FM transmitter throw harmonics like AM does?

If you had an FM signal to get out around home, how would you do it?

Low Power FM Transmitter?
 

On 2/15/06 1:44 PM, in article
, "Ralph D."
wrote:

Hello.

I am aware this may not be the most correct group for this question, but
there are often some here who may know the answer.


I would like to transmit an FM signal at, say, the 88 end of the dial at a
power just strong enough to get around an acre or three out here in the
country. I don't know what the power regulations are (and don't care too
much as there aren't many folks around) but so long as I can listen to the
signal on an FM radio nearby I'd be happy.

Is there a transmitter available for cheap such as a HAM unit of some sort
that maybe can cross over slightly or something? I know that FM radio is in
the middle of the TV band, but is there room there that is used by some
other communication that I could maybe run without an antenna so as to not
walk the signal further than right here?

Does a poorly tuned FM transmitter throw harmonics like AM does?

If you had an FM signal to get out around home, how would you do it?







There are no ham bands around the 88-108 band, so there are no ham thingys
that will work.

You don't want to mess around the frequencies above 108MHz, as that¹s the
aircraft band and you could easily interfere with directional signals (VOR).

There are gadgets being sold that do what you want. They are called FM RF
Modulators. Google that and you will get leads to sellers. It is best to
buy one that meets the FCC requirements.

Don

Low Power FM Transmitter?
 

Ralph,
This place has a few kits that might be of interest.

http://www.ramseyelectronics.com/hk/....asp?page=amfm


--
Tony Marsillo
Nutmeg Repair
-----------------------------------------------------------------
"Ralph D." wrote in message
...
Hello.

I am aware this may not be the most correct group for this question, but
there are often some here who may know the answer.


I would like to transmit an FM signal at, say, the 88 end of the dial at a
power just strong enough to get around an acre or three out here in the
country. I don't know what the power regulations are (and don't care too
much as there aren't many folks around) but so long as I can listen to the
signal on an FM radio nearby I'd be happy.

Is there a transmitter available for cheap such as a HAM unit of some sort
that maybe can cross over slightly or something? I know that FM radio is
in the middle of the TV band, but is there room there that is used by some
other communication that I could maybe run without an antenna so as to not
walk the signal further than right here?

Does a poorly tuned FM transmitter throw harmonics like AM does?

If you had an FM signal to get out around home, how would you do it?

Low Power FM Transmitter?
 

"Don Bowey" wrote in message
...
On 2/15/06 1:44 PM, in article
, "Ralph D."

wrote:

Hello.

I am aware this may not be the most correct group for this question, but
there are often some here who may know the answer.


I would like to transmit an FM signal at, say, the 88 end of the dial at
a
power just strong enough to get around an acre or three out here in the
country. I don't know what the power regulations are (and don't care too
much as there aren't many folks around) but so long as I can listen to
the
signal on an FM radio nearby I'd be happy.

Is there a transmitter available for cheap such as a HAM unit of some
sort
that maybe can cross over slightly or something? I know that FM radio is
in
the middle of the TV band, but is there room there that is used by some
other communication that I could maybe run without an antenna so as to
not
walk the signal further than right here?

Does a poorly tuned FM transmitter throw harmonics like AM does?

If you had an FM signal to get out around home, how would you do it?







There are no ham bands around the 88-108 band, so there are no ham thingys
that will work.

You don't want to mess around the frequencies above 108MHz, as that¹s the
aircraft band and you could easily interfere with directional signals
(VOR).


YIPES! I'm right under the backup approach of the local airport... so that
might be a *really* bad thing here. :-o

There are gadgets being sold that do what you want. They are called FM RF
Modulators. Google that and you will get leads to sellers. It is best to
buy one that meets the FCC requirements.




Combined with Car Audio and such, there are so many of those new ipod
transmitter gizmos out there now that searches turn up 300,000 hits... and I
need something considerable stronger than one of those (have one... tried
it... works great in the house only... but it eats batteries, hums with
cigarette lighter adapter and doesn't reach the driveway let alone across
the fields).

I'll sit down later and see if I can find a way to narrow the search
parameters so as to exclude some of those.


Thanks for at least getting me started!

Low Power FM Transmitter?
 

Thanks. I have not done any PCB soldering since High School Electronics
Class some 32 years ago... but likely still have the stuff I need in my
Dad's workshop. Can't say I'd be comfortable doing it now, though, even with
having built many computers it's not the same skillset.

Built ones seem to be going for 50 to 100 beans US over kit price, which
seems a little pricey for what I want to do (get a signal from here to the
barn and such). I've not done anything with HAM or other radio in the same
span, but maybe I need to get the greymatter flowing on who some of the 1st
and 2nd class guys were in the area and see if they have any leads on one
with a locked frequency used.


Thanks again.




"Tony Marsillo" wrote in message
...
Ralph,
This place has a few kits that might be of interest.

http://www.ramseyelectronics.com/hk/....asp?page=amfm


--
Tony Marsillo
Nutmeg Repair
-----------------------------------------------------------------
"Ralph D." wrote in message
...
Hello.

I am aware this may not be the most correct group for this question, but
there are often some here who may know the answer.


I would like to transmit an FM signal at, say, the 88 end of the dial at
a power just strong enough to get around an acre or three out here in the
country. I don't know what the power regulations are (and don't care too
much as there aren't many folks around) but so long as I can listen to
the signal on an FM radio nearby I'd be happy.

Is there a transmitter available for cheap such as a HAM unit of some
sort that maybe can cross over slightly or something? I know that FM
radio is in the middle of the TV band, but is there room there that is
used by some other communication that I could maybe run without an
antenna so as to not walk the signal further than right here?

Does a poorly tuned FM transmitter throw harmonics like AM does?

If you had an FM signal to get out around home, how would you do it?

Low Power FM Transmitter?
 

Ralph D. wrote:
Hello.

I am aware this may not be the most correct group for this question, but
there are often some here who may know the answer.


I would like to transmit an FM signal at, say, the 88 end of the dial at a
power just strong enough to get around an acre or three out here in the
country. I don't know what the power regulations are (and don't care too
much as there aren't many folks around) but so long as I can listen to the
signal on an FM radio nearby I'd be happy.

Is there a transmitter available for cheap such as a HAM unit of some sort
that maybe can cross over slightly or something? I know that FM radio is in
the middle of the TV band, but is there room there that is used by some
other communication that I could maybe run without an antenna so as to not
walk the signal further than right here?

Does a poorly tuned FM transmitter throw harmonics like AM does?

If you had an FM signal to get out around home, how would you do it?

I have fooled around with the simple one chip stereo transmitters. I
was getting
almost 1000 feet with a slightly longer antenna than recommended, but
this
was noiisey this distance, and tended to follow the power poles. With
the recommend
antenna, these are legal.



greg

Low Power FM Transmitter?
 

GregS wrote:
In article .com, wrote:

Ralph D. wrote:
Hello.

I am aware this may not be the most correct group for this question, but
there are often some here who may know the answer.


I would like to transmit an FM signal at, say, the 88 end of the dial at a
power just strong enough to get around an acre or three out here in the
country. I don't know what the power regulations are (and don't care too
much as there aren't many folks around) but so long as I can listen to the
signal on an FM radio nearby I'd be happy.

Is there a transmitter available for cheap such as a HAM unit of some sort
that maybe can cross over slightly or something? I know that FM radio is in
the middle of the TV band, but is there room there that is used by some
other communication that I could maybe run without an antenna so as to not
walk the signal further than right here?

Does a poorly tuned FM transmitter throw harmonics like AM does?

If you had an FM signal to get out around home, how would you do it?

I have fooled around with the simple one chip stereo transmitters. I
was getting
almost 1000 feet with a slightly longer antenna than recommended, but
this
was noiisey this distance, and tended to follow the power poles. With
the recommend
antenna, these are legal.

Are you trying to broadcast your own music around the farm? I've built
Harry's stuff:
http://web.telia.com/~u85920178/
I've got it around here somewhere. It worked pretty well.
Richard

Low Power FM Transmitter?
 

Ralph D. wrote:
Thanks. I have not done any PCB soldering since High School Electronics
Class some 32 years ago... but likely still have the stuff I need in my
Dad's workshop. Can't say I'd be comfortable doing it now, though, even with
having built many computers it's not the same skillset.

Built ones seem to be going for 50 to 100 beans US over kit price, which
seems a little pricey for what I want to do (get a signal from here to the
barn and such). I've not done anything with HAM or other radio in the same
span, but maybe I need to get the greymatter flowing on who some of the 1st
and 2nd class guys were in the area and see if they have any leads on one
with a locked frequency used.



I have a Ramsey FM-25B which works very well, though it's a bit pricey.
I built it from a kit but it was not difficult, they may offer an
assembled one too.