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Radio Reception

How far it gets out depends on the terrain and whatever gets in the way of the signal. Walls, buildings, hills, etc., will reduce coverage; but free space with nothing in the way, it gets out pretty well.
 
ddsparxx said:
How far it gets out depends on the terrain and whatever gets in the way of the signal. Walls, buildings, hills, etc., will reduce coverage; but free space with nothing in the way, it gets out pretty well.
Click to expand...

Just to add a little to ddsparxx's fine summary....

Basically, you need good line of sight. So you wouldn't want to put it in the middle of a house (for example). Someplace that's high up with relatively few obstacles would get you the best results.
 
I put by the window, I can't put my Wireless FM Transmitter outside..It's hooked up to my laptop

Where can I find a already made AM Transmitter
 
Pretty darn hard to beat while the sale is on:

http://www.talkinghouse.com/

Your AM signal can travel good deal better than an FM, and still be legal.

To hear it properly, you may need to seek out a wideband audio response AM radio.
A old Sony analog tuned radio will probably do quite well.
 
That's out of my price range..anything in the $20 range like a Wireless AM Transmitter, like those Wireless FM Transmitters on ebay
 
Not that I'm aware of. If you don't mind the smell of solder, Antique Electronic Supply in Tempe, Arizona sells a kit with a
vacuum tube that can run off the output of a laptop. It's not the most stable or best sounding thing in the world,
has no regulation and is hard to tune. It can be a fine first step. I bought one for fun. I never did take any steps to
make it easier to tune, but it wouldn't be too hard. If you live in an area where you have clear AM frequencies,
the stability issue wouldn't be a problem. It used to be in the 40 dolllar range. (check) Yep, still 39.95.

I think this is what you need.

http://www.tubesandmore.com/
 
A kit already put together, hmm......

There's a whole long sad story on that. You can buy a kit, and put it together yourself, but when someone else does it for you, that gets tricky and there can be real problems. Especially if you pay them to assemble it. More trouble for the assembler than the user, because of FCC laws. Otherwise, you're stuck with the higer price range. Look back through the community radio board to learn more.

The Ramsey would be a good first step. I am naturallly biased toward vacuum tubes and open breadboards than plastic boxes.

I bought a kit in Italy sold as a wireless microphone, and built it into a trashed 1925 radio and made it a baby monitor.
It was truly flea-powered with a 9 volt battery. Almost no range at all. Perfect for what I needed.
 
Back in '68, I got am FM xmtr from Allied that looked like a black ice cube with 5 wires sticking out of it: 2 for a 9v battery power, 2 for my feed and 1 was the antenna. I determined my frequency by cutting the antenna wire to the proper length (or soldering on more wire after I cut it too short :eek:). I put it on top of my house in Tampa (flat terrain), and drove the car around to test the signal, which went out in all directions for 2 1/2 miles.

I was a happy kid that day. ;)
 
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