ANAN-7000DLE MKII - Internet Remote Base (IRB) - PTT and Audio
Posted: Sun Feb 09, 2020 1:40 pm
Hi all!
Having a fun time trying to get my IRB working with a '7000 rather than a conventional transceiver at it's heart. It's 90% there, but I have one silly on the ANAN PTT and TX Audio.
In outline, my setup is a PC in the shack running:
1. PowerSDR OpenHPSDR mRX v3.4.9, networked to the Anan, taking care of the signal processing;
2. VNC Server, to allow me to see PSDR from remote;
3. Virtual Audio Cable to pipe the PSDR baseband RX and TX audio into-;
4. DF3CB RemAud Server (https://www.df3cb.com/remaud/);
(There's a few more software applications running too for Virtual Serial Ports, DDutil, Logging, PA control, etc, but they all work and are incidental.)
On the remote end, I'm running, amongst other software, the DF3CB RemAud Client.
The DF3CB RemAud software can transport a PTT signal from the Client to the Server. I would like to make use of this for three reasons:
Firstly it give a control channel that's independent of VNC. (Pressing the 'MOX' button on PSDR UI via VNC OK fine until VNC crashes!)
Secondly, it saves 20 kbps, or so, of Internet bandwidth, as it means RemAud can run in 'Simplex' mode, with only RX, or TX, audio transported over the Internet at any one time.
Thirdly, having the TX audio transported with the PTT signal in the same control channel (I think!) means that the timing between the two gets sorted, so no cutting off the end of an over by pressing the MOX button before the TX audio buffer in RemAud Server has emptied.
That's a very long introduction to the nub of my issue which is: When I connect the interface I made betweween the shack PC COM port and Anan 'PTT In' and enable PTT in Setup - General - Hardware Options in PSDR, PSDR seems to assume that I will be using a local microphone plugged into the Anan and disables transport of TX audio over VAC. I wasn't expecting this behaviour.
Can this behaviour be changed, so I get the benefit of hardware PTT AND keep my TX audio in the digital domain via VAC? I've dug out the audio interface I built for the last incarnation of the IRB. Usual thing with two audio transformers in a box. Hoping I don't have to use it!
Regards,
Mark, G4FPH.
Having a fun time trying to get my IRB working with a '7000 rather than a conventional transceiver at it's heart. It's 90% there, but I have one silly on the ANAN PTT and TX Audio.
In outline, my setup is a PC in the shack running:
1. PowerSDR OpenHPSDR mRX v3.4.9, networked to the Anan, taking care of the signal processing;
2. VNC Server, to allow me to see PSDR from remote;
3. Virtual Audio Cable to pipe the PSDR baseband RX and TX audio into-;
4. DF3CB RemAud Server (https://www.df3cb.com/remaud/);
(There's a few more software applications running too for Virtual Serial Ports, DDutil, Logging, PA control, etc, but they all work and are incidental.)
On the remote end, I'm running, amongst other software, the DF3CB RemAud Client.
The DF3CB RemAud software can transport a PTT signal from the Client to the Server. I would like to make use of this for three reasons:
Firstly it give a control channel that's independent of VNC. (Pressing the 'MOX' button on PSDR UI via VNC OK fine until VNC crashes!)
Secondly, it saves 20 kbps, or so, of Internet bandwidth, as it means RemAud can run in 'Simplex' mode, with only RX, or TX, audio transported over the Internet at any one time.
Thirdly, having the TX audio transported with the PTT signal in the same control channel (I think!) means that the timing between the two gets sorted, so no cutting off the end of an over by pressing the MOX button before the TX audio buffer in RemAud Server has emptied.
That's a very long introduction to the nub of my issue which is: When I connect the interface I made betweween the shack PC COM port and Anan 'PTT In' and enable PTT in Setup - General - Hardware Options in PSDR, PSDR seems to assume that I will be using a local microphone plugged into the Anan and disables transport of TX audio over VAC. I wasn't expecting this behaviour.
Can this behaviour be changed, so I get the benefit of hardware PTT AND keep my TX audio in the digital domain via VAC? I've dug out the audio interface I built for the last incarnation of the IRB. Usual thing with two audio transformers in a box. Hoping I don't have to use it!
Regards,
Mark, G4FPH.