122-16 diversity

[k9gasman]

I recently purchased the 122-16. I have Pavel's SD card. I've used the Hermes selection, but this does not give me the option to select diversity. I have used it by selecting one of the twin ADC models using the Angelia or Orion boards, 100d or 200d. Is this the correct method? I do have the Charly25 SD card made up for it as well. I prefer the Thetis over the PowersdrMrx version due to features.
Under the same topic, this seems to affect the use of Pure signal as well. I haven't figured out what amount of attenuation is needed for this board. Using diversity is more important than PS for me.
Thanks in advance.
Jerry

[pavel]

To make the SDR transceiver compatible with HPSDR work with Thetis, you will need to edit the start.sh file (apps/sdr_transceiver_hpsdr_122_88/start.sh) on the SD card and replace "sdr-transceiver-hpsdr" with "sdr-transceiver-hpsdr-thetis" on line 9.

If you are on Windows, please use a text editor that preserves end-of-line characters. Notepad++ should be OK.

[k9gasman]

Thank you, Pavel, I did this, and it didn't seem to make any difference. It was running fine, I believe. I was using model Hermes in Setup. With this selection, it will not allow diversity, since the Hermes board does not have two ADCs. I can select Anan 100D as this board has twin ADCs, but the RX selections are not the same to use as an example, pure signal into the RX2 on the 122-16. Diversity seems to work fine. Thetis did work without modification to the start.sh. Have you made any SD card image files that uses both RX inputs on the 122-16? I am using the alpine-3.18-armv7-20240204 image. Yes, I've been using windows notepad to edit.

[pavel]

I am afraid that your last comment is too difficult for me to understand.

The input/receiver assignment is controlled by command line arguments. I think that Thetis uses the fourth receiver for Pure Signal. So the fourth command line argument controls the Pure Signal input when used with Thetis.

[k9gasman]

Thanks Pavel, I will keep researching this.
One more observation, I noticed that this 122-16 has a lot of spurs on 20m-10m. This surprises me because of the design of the board. I don't see these on the Hermes Lite or the TRX-Duo. I did a search to see if this has been brought up before. Again, thanks for the replies.