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Author Topic: Computer Run Shortwave  (Read 451 times)

Offline mysticstar

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Re: Computer Run Shortwave
« Reply #15 on: November 05, 2018, 1547 UTC »
So does an SDR Play have the ability to interface with decoding? As I said before, I am still learning about the new software driven decoders verses the ones I am used to also referred as TNC's (PakRat PK-232, etc.) Will I still be able to decode?
RCVR: Yaesu FRG-7
XMTR: Still Looking
ANT: Alpha Delta DX-SWL Sloper
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Offline n3umw

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Re: Computer Run Shortwave
« Reply #16 on: November 05, 2018, 1757 UTC »
You may want to hold onto your Icom if you use it as a VHF/UHF scanner. I have not run across any good SDR scanning software that lets you save specific scan frequencies. You'll probably need an RS-232 to USB adapter.
RX: Afedri SDR-net, WJ-8711, Lowe HF-150, SDRPlay2, AirSpy HF+
TX: Icom IC-718
ANT: W2PM Mini-diamond,  KK5JY loop, 9:1 23' UNUN
AUDIO: Kenwood HS-5 communication head phones
QTH: Germantown, MD USA

Offline Josh

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Re: Computer Run Shortwave
« Reply #17 on: November 06, 2018, 1831 UTC »
So does an SDR Play have the ability to interface with decoding? As I said before, I am still learning about the new software driven decoders verses the ones I am used to also referred as TNC's (PakRat PK-232, etc.) Will I still be able to decode?

The SDRPlay products can send audio or an iq stream to a decoder, no problem there. I doubt if any of the high dollar decoders will ever directly support the RSP line as they're just not in use to any number in mil/int/diplo services.

Any rig that can produce audio can be used with decoders, as long as it hears the freq in question and has a demodulator for the mode. Not too many folks use tncs anymore save for the pactor iv guys. I miss my old pk232, the saim function was neat until I realised it would only id sigs that it was programmed to, nowadays some decoders offer classification of signals, feed it a sig and it'll tell you if it's psk, fsk, shift, baudrate, etc etc. The one area where a tnc shines over a pc based decoder is in the latency war, hardware modems like the pk232 and the military modems have superior timing capability compared to a pc. This can be important in certain modes that do not tolerate varying latency, and here I'm talking about microseconds and milliseconds.

Back when I got started in decoding and "serious" swling there wasn't much of an innernet and no remote sdrs to play with, today you can remote into sdrs located around the world. I suggest using some remote sdrs to get an idea as to how they operate before plunking down the cash. I also find it nice to have a rig that can hear the band without needing a pc running, so don't sell your table top rig to get an sdr.
« Last Edit: November 06, 2018, 1840 UTC by Josh »
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Offline mysticstar

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Re: Computer Run Shortwave
« Reply #18 on: November 07, 2018, 1755 UTC »
Hey N3UMW, how do you like your SDR play2? Is it everything you expected it to be. I saw your graphic and it reminded me of the older days that Philadelphia Electric used something similar. It's great!
RCVR: Yaesu FRG-7
XMTR: Still Looking
ANT: Alpha Delta DX-SWL Sloper
KD8OPV   KDE3BG :)