Radio Shack Realistic HTX-100 working with DigiRig and GX16 Mic Cable

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Recently purchased a DigiRig to get an old Realistic HTX-100 (like the HTX-10) on FT8 and FT4. Easy to do with the microphone connector which has PPT, mic, and audio on the Kenwood style microphone jack. I use the following:
Kenwood, Alinco GX16 Mic Cable for Digirig Mobile - GX16 Mic Connector
Digirig Mobile - Logic Levels (default)

A new life for this old mobile as a dedicated digital rig. Tnx. 73 de Jeff

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Thank you for reporting your success. I’ll update the cable compatibility tags in the store.

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I recently took on this project and am stuck at the radio not hearing the output of the digirig . It will Ptt and it will hear and decode on WSJTX but no go on audio making to radio. I got the single 3.5 cable and have it plugged into the audio side of the digi rig. Did i get the right cable or how can i make the output make it to radio it shows as USB audio device and i visually see green bars when i tune? any help is appreciated.

Thanks in advance

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and just like that i got it working! buy a good usb cable!

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Congratulations! Thanks for reporting your success.

73 Constrainted

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@Helpful7 I’m receiving FT8 and WSPR with my HTX-100 and Digirig Mobile but I’m not getting any replies on FT8 or spots of my WSPR transmissions. Would you mind sharing your WSJT-X radio>rig, audio, and PTT settings?

Also having a problem where WSJT-X stops monitoring WSPR after a transmission. I have to halt tx manually to restart monitoring. Don’t know yet if these problems are related.

Based on this post, I got the cable with the DX16 connecter where the radio’s audio output is available on Mic’s pin #6 https://digirig.net/product/gx16-mic-cable-for-digirig-mobile/?srsltid=AfmBOooGG-ctEox-7U716x7DEyjPBj09hvGCDLirDH9Q_GDriH24oO49

Thanks, Mike K3LOE

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Good morning Mike,
I use the DigiRig mobile with the DX16 cable selected when purchased for Mic audio. Connect to DigiRig Audio. Nothing in DigiRig serial. The cable and HTX-100 required no modification. The headphone jack on the HTX-100 is not used, but I put a 3.5mm to 2.5mm audio adapter in it to silence the speaker for my convenience. The HTX-100 audio control is set to about 9:00 (third bar) in my configuration to get high, but green audio on WSJT.

WSJT Radio is set to None. PPT is set to RTS and COM port in my case is COM3.

WSJT Audio Input and Output are set to 7-USB Audio Device in my case. I also renamed them with HTX-100 prefix for my convenience since I run multiple instances of WSJT with different radios.

In Windows, right click on Speaker icon, Left click Open Sound Settings, Sound Control Panel, the Playback is about -10 and the Recording is about Microphone -9.

I suggest putting your callsign into PSK Reporter and see where and how strongly you are being heard by the network. In the last 24 hours, you were not heard on any band or mode via PSK. https://pskreporter.info/pskmap.html?band=all&sigs=all&txrx=tx&what=callsign&callsign=k3loe&mode=all&timerange=3600&Go%21=Go%21#

73 de Jeff, N3FMC

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Thanks very much for all the details, Jeff. I had the PPT setting wrong. I now see my WSPR transmissions are being received. Now onto actual QSOs with FT8!

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