I have the FM-10 kit, and I enjoy it as an example of
an inexpensive transmitter kit. That said, it's not much
more than that, so if you get serious, try the 25 or 100.

--Mike L.


"Bob Sillett" wrote in message
...
If you like to build kits, check out Ramsey Electronics.
http://www.ramseyelectronics.com/

Go to the Hobby Kits section, then AM/FM broadcasters

I have the FM-10 and FM-100 kits, and a friend of mine has the
FM-25. All
three kits will easily broadcast around your house. If you build a
dipole
antenna, you can also get a little extra range. Note that this
might put
you over the FCC limit; however, having a range of 1/2 a block isn't
going
to be a big deal.

Here are a couple of notes about each model:

FM-10 -- this is tuned via a coil and it tends to drift as the unit
heats
up. This means that you'll never get this perfectly on-frequency.
As long
as your target radio is analog, this works great. You just need to
be sure
that your analog FM radio has AFC or else you'll need to slightly
retune
every 40 to 60 minutes.

FM-25 -- this is the same as the FM-10 but with PLL tuning. You set
the
frequency by turning switches on and off. So it's suitable for
digital
receivers. The range and sound quality is equivalent to the FM-10.

FM-100 -- this is the high-end version of the hobby kits. It has an
LCD for
tuning, two line-in inputs, and a microphone input. I built this
kit, and
it has over 600 solder connections. It took me about a week to get
this
built, whereas the FM-10 and FM-25 are much simpler to build.

Ramsey also has a good service policy. When I built my FM-100, I
turned it
on and nothing worked. I couldn't find the problem, so I sent it
back to
Ramsey. I had a cold solder connection, which they found and fixed.
I had
to pay for the service, but they were fixing my mistake!

I really like my FM-100, but I would recommend the FM-10 or FM-25.
It all
depends if you need PLL tuning or not, because the FM-25 is $90
more. Note
also that these transmitters are pretty much at the legal FCC limit
(I have
read that they're slightly above the limit), so any modifications
like
tweaking the antenna will put you over the limit.

Bob


"Conan Ford" wrote in message
.159...
I'd like to be able to listen to shortwave stations around the
house, or
even MW stations on my Superadio II without lugging the radio
around the
house (in the case of SW, this is impossible because I can't take
my
antenna wire around). What's the best solution for this? I was
thinking
of a small FM transmitter like this:
http://www.radioshack.ca/estore/Prod...roduct=1218989 , but
I'm
betting the range on these is very small.