Скачать или смотреть HAM RADIO REMOTE RIG setup for CW & VOICE using a Raspberry PI and free software

this video demo's a Raspberry PI 2b, setup for remote rig operations - controlled from a remote LINUX LAPTOP -

A Raspberry PI connects software and hardware to the RIG
3 audio derived RIG CW KEYING circuits are used:
http://qrqcwnet.ning.com/forum/topics...
one to key the CW JACK, one to key the PTT jack and another one to key the CW JACK(for remote's paddles/st key)


software used:
1. FLdigi
2. FLrig
3. FLlog
4. TRX

TRX is an OPUS codec Linux audio streaming CLI app using ALSA
http://www.pogo.org.uk/~mark/trx/
http://www.pogo.org.uk/~mark/trx/tx.txt
http://www.pogo.org.uk/~mark/trx/rx.txt
https://github.com/eugenehp/trx/wiki/...
https://github.com/schlowmo/trx

FLdigi, FLrig
http://www.w1hkj.com/flrig-help/
https://sourceforge.net/projects/fldigi/

here is a list of the TRX audio streams made by TRX for this setup:
ONTHE RASPBERRY PI:
1. using the K3S's USB SOUND CARD (playback) TRX is setup to stream the RIG's receiver audio and RIG's sidetone(optional) to the remote HAM RADIO OP's computer's soundcard
2. one TRX RX audio stream is setup to receive the VOICE AUDIO from the remote HAM RADIO OP's MICrophone
3. another TRX RX audio stream(using a different port number) is setup to receive the morse code audio tones from the remote HAM RADIO OP's paddles and straight key

ON THE REMOTE HAM RADIO OP's COMPUTER:
1. TRX is setup to receive the audio stream from the PI, which is forwarding the rig's receiver audio including sidetone(optional)
2. TRX is setup to stream the audio from the paddles and straight key and transit it to the PI(uses the different port number 1351)
3. TRX is setup to stream the audio from the MIC to the PI

NOTE: on the receive streams, you have to experiment with the JITTER BUFFER -j to find the best setting for a stable audio stream...

NOTE: on the transmit streams, if you have a good internet connection, you may be able to lower the latency by lowering the value of the buffer using the -m command(default=16ms)

here is an ongoing article about this topic:
http://qrqcwnet.ning.com/profiles/blo...