Low power FM transmiters

[Bingo_17]

I'm thinking about getting one of these if they support PPL.

Just found the site...so do not know much about quality.


http://www.hobbytron.com/FMTransmitter.html

[db]

Remember, deliberately boosting the satellite feed for others without
subscriptions is illegal. Im not positive but firmly believe it to be a
felony.

If you have a couple acres & want to boost the signal throughout your
property, great.
If you plant that thing in your cubicle, thats a different story.

[J. Fowler]

Bingo_17 wrote:
> I'm thinking about getting one of these if they support PPL.
>
> Just found the site...so do not know much about quality.
>
>
> http://www.hobbytron.com/FMTransmitter.html
>
>

This is a fun device for the home audio.

http://www.slimdevices.com/

[Mark S.]

Bingo_17 wrote:
> I'm thinking about getting one of these if they support PPL.
>
> Just found the site...so do not know much about quality.
>
>
> http://www.hobbytron.com/FMTransmitter.html

Looks like they are just reselling Ramsey's stuff. Check out Ramsey's page:

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

[Mark S.]

Mark S. wrote:
> Bingo_17 wrote:
>
>> I'm thinking about getting one of these if they support PPL.
>>
>> Just found the site...so do not know much about quality.
>>
>>
>> http://www.hobbytron.com/FMTransmitter.html
>
>
> Looks like they are just reselling Ramsey's stuff. Check out Ramsey's
> page:
>
> http://www.ramseyelectronics.com/hk/default.asp?page=amfm

Forgot to add, I can vouche for their stuff. I've bought a couple kits
from them before at hamfests and they're easy to put together, have good
instructions, and they do work. In fact, the FM10 was the first kit I
ever built, and 15 years later it still works. You can also get wired
and tested ones if you aren't too handy with a soldering iron. If
there's a large hamfest in your area soon, they might be there and you
can check out all their stuff in person as well as get it for a
discount. The FM25B is the cheapest PLL synthesized one, and they also
got the FM100 which has the LED display, 1W output capability and a
built in power supply, but unless you're really crazy about how pretty
it is and the convenience of the built in power supply I wouldn't waste
my time since 1W is over the legal limit in the US.

[Bingo_17]

>> Looks like they are just reselling Ramsey's stuff. Check out Ramsey's
>> page:
>>
>> http://www.ramseyelectronics.com/hk/default.asp?page=amfm
>
> Forgot to add, I can vouche for their stuff. I've bought a couple kits
> from them before at hamfests and they're easy to put together, have good
> instructions, and they do work. In fact, the FM10 was the first kit I
> ever built, and 15 years later it still works. You can also get wired and
> tested ones if you aren't too handy with a soldering iron. If there's a
> large hamfest in your area soon, they might be there and you can check out
> all their stuff in person as well as get it for a discount. The FM25B is
> the cheapest PLL synthesized one, and they also got the FM100 which has
> the LED display, 1W output capability and a built in power supply, but
> unless you're really crazy about how pretty it is and the convenience of
> the built in power supply I wouldn't waste my time since 1W is over the
> legal limit in the US.

Thanks, I looked at the Ramsey site...It seems ramsey no longer sells to
retail.
A list of dealers is posted on the site.

As for building my own kit, No Problem, Qround 30 years ago I built a Heath
Kit 25" color tv set. It worked well for over 20 years before I trashed it
and got a big projection set.

The FM25B would work fine except it can provide power beyond my needs.
I may just get the smaller CC-FMT unit. As it is battery driven I would
make a
small device to lower my cars 12 volt DC to 3 volts DC and use it in place
of my low powered car kit wireless modulator. I could locate it in the trunk
as the car AM/FM antenna is in the rear window. This location should work
better than the kar kit modulator if the CC-FMT fidelity is up to par.

When I was a lad I bought lots of kits from Knight and Heath Kit. Had lots
of
fun building radios as well as other devices. My first shortwave radio was
from Knight. It was quite an antic, had to change coils for each SW band
and have a
long wire antenna over the rear yard.

[Bingo_17]

OT: Tried to send you e-mail...but it bounced..?

[Bingo_17]

Found the same unit by C.Crane with a 5 volt power supply option
"Bingo_17" <bingo_17@juno.com> wrote in message
news:xuOdnR9IxtoikmLeRVn-jw@scnresearch.com...
>
>
>>> Looks like they are just reselling Ramsey's stuff. Check out Ramsey's
>>> page:
>>>
>>> http://www.ramseyelectronics.com/hk/default.asp?page=amfm
>>
>> Forgot to add, I can vouche for their stuff. I've bought a couple kits
>> from them before at hamfests and they're easy to put together, have good
>> instructions, and they do work. In fact, the FM10 was the first kit I
>> ever built, and 15 years later it still works. You can also get wired
>> and tested ones if you aren't too handy with a soldering iron. If
>> there's a large hamfest in your area soon, they might be there and you
>> can check out all their stuff in person as well as get it for a discount.
>> The FM25B is the cheapest PLL synthesized one, and they also got the
>> FM100 which has the LED display, 1W output capability and a built in
>> power supply, but unless you're really crazy about how pretty it is and
>> the convenience of the built in power supply I wouldn't waste my time
>> since 1W is over the legal limit in the US.
>
> Thanks, I looked at the Ramsey site...It seems ramsey no longer sells to
> retail.
> A list of dealers is posted on the site.
>
> As for building my own kit, No Problem, Qround 30 years ago I built a
> Heath Kit 25" color tv set. It worked well for over 20 years before I
> trashed it and got a big projection set.
>
> The FM25B would work fine except it can provide power beyond my needs.
> I may just get the smaller CC-FMT unit. As it is battery driven I would
> make a
> small device to lower my cars 12 volt DC to 3 volts DC and use it in place
> of my low powered car kit wireless modulator. I could locate it in the
> trunk as the car AM/FM antenna is in the rear window. This location
> should work better than the kar kit modulator if the CC-FMT fidelity is
> up to par.
>
> When I was a lad I bought lots of kits from Knight and Heath Kit. Had
> lots of
> fun building radios as well as other devices. My first shortwave radio
> was from Knight. It was quite an antic, had to change coils for each SW
> band and have a
> long wire antenna over the rear yard.
>
>
>
>
>
>

[Mark S.]

Bingo_17 wrote:
> OT: Tried to send you e-mail...but it bounced..?

Yes, it's not my real email address exactly. You have to replace the
last part with the name of a popular free email service by Google ;-)

[Mark S.]

Bingo_17 wrote:
>>>Looks like they are just reselling Ramsey's stuff. Check out Ramsey's
>>>page:
>>>
>>>http://www.ramseyelectronics.com/hk/default.asp?page=amfm
>>
>>Forgot to add, I can vouche for their stuff. I've bought a couple kits
>>from them before at hamfests and they're easy to put together, have good
>>instructions, and they do work. In fact, the FM10 was the first kit I
>>ever built, and 15 years later it still works. You can also get wired and
>>tested ones if you aren't too handy with a soldering iron. If there's a
>>large hamfest in your area soon, they might be there and you can check out
>>all their stuff in person as well as get it for a discount. The FM25B is
>>the cheapest PLL synthesized one, and they also got the FM100 which has
>>the LED display, 1W output capability and a built in power supply, but
>>unless you're really crazy about how pretty it is and the convenience of
>>the built in power supply I wouldn't waste my time since 1W is over the
>>legal limit in the US.
>
>
> Thanks, I looked at the Ramsey site...It seems ramsey no longer sells to
> retail.
> A list of dealers is posted on the site.

Ah, things have changed over the past few years I guess. They were
involved with some sort of government investigation a few years back
because of the small transmitter and pinhole camera kits they used to
sell for years and years before 9/11 but times are different now and I
suppose this spured a lot of changes in the company.

> As for building my own kit, No Problem, Qround 30 years ago I built a Heath
> Kit 25" color tv set. It worked well for over 20 years before I trashed it
> and got a big projection set.

It's a shame that a company like Heathkit isn't still around today. I
think these generations coming up now rather just fool with computers
pulling and plugging PNP components instead of putting together real
electronics.

> The FM25B would work fine except it can provide power beyond my needs.
> I may just get the smaller CC-FMT unit. As it is battery driven I would
> make a
> small device to lower my cars 12 volt DC to 3 volts DC and use it in place
> of my low powered car kit wireless modulator. I could locate it in the trunk
> as the car AM/FM antenna is in the rear window. This location should work
> better than the kar kit modulator if the CC-FMT fidelity is up to par.

I had a project that required a 3-5VDC input that I wanted to run in the
car and I just went to the local thrift store, Value Village and found a
cigarette lighter adapter with outputs from 3 to 12V in 1.5V
increments rated at 1A, and it had all of the adapt-a-plugs and even a
car stereo casette to line input adapter, all for $3. Building my own
would have been more expensive!

> When I was a lad I bought lots of kits from Knight and Heath Kit. Had lots
> of
> fun building radios as well as other devices. My first shortwave radio was
> from Knight. It was quite an antic, had to change coils for each SW band
> and have a
> long wire antenna over the rear yard.

Latest kits I've been fooling with have been a TinyTrak3 (which Dr.Droo
will be familiar with) which is just a little PIC project which can
encode GPS NMEA into a compressed format and then converted into 300bd
or 1200bd audio tones to be transmitted over radio. Another one is a
10MHz CW transceiver with integrated iambic keyer, crystal controlled
but dual frequencies by pulling the crystal off frequency by a kc. It's
from small wonder labs and fits nicely into an Altoids tin :) I also
got to modify an MMDS downconverter to work at 2401MHz and make a bias T
to power it for a different kind of satellite radio, receiving AO-51
when it's in mode S downlink!

[Bingo_17]

Sounds like you are having fun....If I go that way I'll buy the small power
supply

You should have e-mail by now.

"Mark S." <vo1one@gee-mail.com> wrote in message
news:dtnd3d$v04$1@emma.aioe.org...
> Bingo_17 wrote:
>>>>Looks like they are just reselling Ramsey's stuff. Check out Ramsey's
>>>>page:
>>>>
>>>>http://www.ramseyelectronics.com/hk/default.asp?page=amfm
>>>
>>>Forgot to add, I can vouche for their stuff. I've bought a couple kits
>>>from them before at hamfests and they're easy to put together, have good
>>>instructions, and they do work. In fact, the FM10 was the first kit I
>>>ever built, and 15 years later it still works. You can also get wired
>>>and tested ones if you aren't too handy with a soldering iron. If
>>>there's a large hamfest in your area soon, they might be there and you
>>>can check out all their stuff in person as well as get it for a discount.
>>>The FM25B is the cheapest PLL synthesized one, and they also got the
>>>FM100 which has the LED display, 1W output capability and a built in
>>>power supply, but unless you're really crazy about how pretty it is and
>>>the convenience of the built in power supply I wouldn't waste my time
>>>since 1W is over the legal limit in the US.
>>
>>
>> Thanks, I looked at the Ramsey site...It seems ramsey no longer sells to
>> retail.
>> A list of dealers is posted on the site.
>
> Ah, things have changed over the past few years I guess. They were
> involved with some sort of government investigation a few years back
> because of the small transmitter and pinhole camera kits they used to sell
> for years and years before 9/11 but times are different now and I suppose
> this spured a lot of changes in the company.
>
>> As for building my own kit, No Problem, Qround 30 years ago I built a
>> Heath Kit 25" color tv set. It worked well for over 20 years before I
>> trashed it and got a big projection set.
>
> It's a shame that a company like Heathkit isn't still around today. I
> think these generations coming up now rather just fool with computers
> pulling and plugging PNP components instead of putting together real
> electronics.
>

I agree here. All the componets for the kits were sacked and had to be
soldered or installed in place as well as all wiring harnesses

Due to IC's now days its just plug the items in.


>> The FM25B would work fine except it can provide power beyond my needs.
>> I may just get the smaller CC-FMT unit. As it is battery driven I would
>> make a
>> small device to lower my cars 12 volt DC to 3 volts DC and use it in
>> place
>> of my low powered car kit wireless modulator. I could locate it in the
>> trunk as the car AM/FM antenna is in the rear window. This location
>> should work better than the kar kit modulator if the CC-FMT fidelity is
>> up to par.
>
> I had a project that required a 3-5VDC input that I wanted to run in the
> car and I just went to the local thrift store, Value Village and found a
> cigarette lighter adapter with outputs from 3 to 12V in 1.5V increments
> rated at 1A, and it had all of the adapt-a-plugs and even a car stereo
> casette to line input adapter, all for $3. Building my own would have
> been more expensive!
>
>> When I was a lad I bought lots of kits from Knight and Heath Kit. Had
>> lots of
>> fun building radios as well as other devices. My first shortwave radio
>> was from Knight. It was quite an antic, had to change coils for each SW
>> band and have a
>> long wire antenna over the rear yard.
>
> Latest kits I've been fooling with have been a TinyTrak3 (which Dr.Droo
> will be familiar with) which is just a little PIC project which can encode
> GPS NMEA into a compressed format and then converted into 300bd or 1200bd
> audio tones to be transmitted over radio. Another one is a 10MHz CW
> transceiver with integrated iambic keyer, crystal controlled but dual
> frequencies by pulling the crystal off frequency by a kc. It's from small
> wonder labs and fits nicely into an Altoids tin :) I also got to modify
> an MMDS downconverter to work at 2401MHz and make a bias T to power it for
> a different kind of satellite radio, receiving AO-51 when it's in mode S
> downlink!

[Dr. Droo]

Mark S. wrote:
> It's a shame that a company like Heathkit isn't still around today. I
> think these generations coming up now rather just fool with computers
> pulling and plugging PNP components instead of putting together real
> electronics.

No kidding.. It's difficult to get a good kit nowadays. Jameco
sometimes has a few here and there that might be of value.

> Latest kits I've been fooling with have been a TinyTrak3 (which Dr.Droo
> will be familiar with) which is just a little PIC project which can
> encode GPS NMEA into a compressed format and then converted into 300bd
> or 1200bd audio tones to be transmitted over radio.

Yeah I'm familiar and own/built one.. The optional case definitely
makes it nicer. I've never actually used it, but a friend of mine
borrowed it to go cross country with a Yaesu VX150.

I still prefer my D700, which I need to put in my new car some point.

> Another one is a
> 10MHz CW transceiver with integrated iambic keyer, crystal controlled
> but dual frequencies by pulling the crystal off frequency by a kc. It's
> from small wonder labs and fits nicely into an Altoids tin :) I also
> got to modify an MMDS downconverter to work at 2401MHz and make a bias T
> to power it for a different kind of satellite radio, receiving AO-51
> when it's in mode S downlink!

Fun stuff for sure. :) I still have yet to put the tower up but will
hopefully this year since I'll have time. I definitely want to get
some more time on the sats. I'm hoping for a FT-897 to help me with
that..

Sirius should really put a full APRS stream up on the sats for us. I'd
probably pay another 6$ a month if it meant I'd have a continuous
national APRS downlink if the net went out.

--D