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Author Topic: USB Pirate Station, audio bandwidth  (Read 122 times)

Offline pascal62

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USB Pirate Station, audio bandwidth
« on: October 09, 2019, 1336 UTC »

I wonder what kind of TRX American USB pirate do use for broadcast ?
Is that (un)modified audio bandwidth HAM rig ? Or are they using standard rig with USB cut-off audio bandpass 2,4 or 2,7 k ?

For now, I'm only use AM but it will be funny to make some tests in SSB mode.
Some HAM rigs have very narrow bandwidth about 2,4k wich is too much narrow.
The idea would be to find a rig with 2,7k (or maybe 2,9k) not too expensive for testing. Or bypass the audio filter and limiting bandwidth with equalizer.

Thanks for info

Offline ThaDood

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Re: USB Pirate Station, audio bandwidth
« Reply #1 on: October 09, 2019, 1906 UTC »
For straight, out of the box, it's hard to beat most Kenwood transceivers. There are even modifications to open many of those up to 5kHz TX bandwidth, or better. Not just the the high-end, but the low end bass as well.
I can't decide upon what's worst, young and stupid, or old and chemically dumbed down.

Offline R4002

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Re: USB Pirate Station, audio bandwidth
« Reply #2 on: October 10, 2019, 2251 UTC »
There's a huge amount of variation between stations as far as mode and bandwidth (and transmitter).  For SSB / USB stations, the usual 2.4 kHz - 2.7 kHz or so is pretty common.  Other US pirates have high end transmitters and do 5 kHz or even 10+ kHz wide SSB signals. 

There are still plenty of American shortwave pirate broadcasters that use good ol' AM. 
U.S. East Coast, various HF/VHF/UHF radios/scanners/receivers