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Software Defined Radio (SDR)
#1
A friend of mine was showing me this little thing the other weekend. Basically it's a USB stick with a cheap antenna. You can set it to receive just about anything in the RF spectrum by setting center frequency, modulation type and bandwidth. There's a shitton of open source decoders out there.

I'm not going to say much more about it, but just let your imagination run with the idea of having a radio that you can set to any frequency.

http://www.amazon.com/gp/product/B00C37A...UTF8&psc=1
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#2
I've never used one but they are pretty popular, and most people like them. Looks like that particular one only goes down to 25MHz so you wont be able to get some of the lower frequencies, like AM radio.
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#3
You can play with the software part (listen) here:
http://websdr.ewi.utwente.nl:8901/
http://www.160m.net/

I wanted to see if I could listen in on my buddy (WI3F) down in Maryland but couldn't find any local enough.
The Second Amendment does not GIVE us the right. It tells the gov they can not infringe our right.
[Image: s2b0iw.jpg]
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#4
bac0nfat;146480 Wrote:I've never used one but they are pretty popular, and most people like them. Looks like that particular one only goes down to 25MHz so you wont be able to get some of the lower frequencies, like AM radio.

You're not thinking 4th Dimensionally, Marty.

Who wants to listen to a bunch of shortwave beeps and boops and a bunch of old hams talking about tower erections when you can decode ATC.
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#5
Allow me to spark your imagination a little bit. This isn't a random image I got from the internet, it was emailed to me by a friend.

[Image: 2c0juq.png]
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#6
streaker69;146482 Wrote:
bac0nfat;146480 Wrote:I've never used one but they are pretty popular, and most people like them. Looks like that particular one only goes down to 25MHz so you wont be able to get some of the lower frequencies, like AM radio.

You're not thinking 4th Dimensionally, Marty.

Who wants to listen to a bunch of shortwave beeps and boops and a bunch of old hams talking about tower erections when you can decode ATC.

Better listen for knocks at the door and keep the dog close by. Tongue
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#7
I got my device today. So far it's kind of working. With one piece of software I've been able to tune into FM radio and various police channels that I'd normally listen to on the scanner. The really good software I haven't gotten it to work yet.
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#8
I'll be really impressed if you can figure out how to demodulate DMR.
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#9
[Image: 15g5p9t.gif]At least the UFO's are squawking.
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#10
Can any of you HAM guys identify this connector?

[Image: 23zz.jpg]
[Image: 06vp.jpg]
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