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Author Topic: Radio noises  (Read 7542 times)

Gordonjcp

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Radio noises
« on: June 09, 2009, 03:05:40 PM »
I'm putting together a wee pack of interesting and odd radio noises, and of course the circuitbenders.co.uk faithful get first crack.

Usual licence applies - samples are CC-BY-SA with the possibility of CC-BY with my permission.

First up we have a French-language shortwave radio station on 9.970MHz.  Because my HF transceiver is SSB-only (no AM) it is very fiddly to tune exactly onto the frequency.  When it's off-tune instead of being all crackly like an AM radio it pitch-shifts the incoming signal.

Enjoy.

http://www.gjcp.net/~gordonjcp/9970kHz.ogg
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Matt the Modulator

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Re: Radio noises
« Reply #1 on: June 10, 2009, 11:52:34 PM »
Thanks !!! some of the out of tune bits sounds a bit the the old imperial code used in empire strikes back ! which is nice  ;)
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Gordonjcp

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Re: Radio noises
« Reply #2 on: June 11, 2009, 12:35:30 AM »
Quote from: matt the modulator on June 10, 2009, 11:52:34 PM
Thanks !!! some of the out of tune bits sounds a bit the the old imperial code used in empire strikes back ! which is nice  ;)

Mmmm yeah, wonder how they did that eh?
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nochtanseenspecht

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Re: Radio noises
« Reply #3 on: June 11, 2009, 01:34:41 PM »
nice :)
btw, ive heart that if you connect the antennea's from 2 radios, set to the same station, they go ringmodulate..
never tried it.. wonder wat happen with 3 ór 4 radio's...
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Gordonjcp

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Re: Radio noises
« Reply #4 on: June 11, 2009, 02:12:39 PM »
No, they won't ring modulate.  You *might* get some odd interference on two FM radios tuned about 11MHz apart if they were very very close together.
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