[TenTec] Orion and Soundcard Interface

k8jdc at sbcglobal.net k8jdc at sbcglobal.net
Tue Oct 10 23:03:30 EDT 2006


I built a cable to connect my Orion (via the Aux I/O connector) to my PK-232 tonight.  My PK-232 includes the optional built-in "PSK" soundcard interface which has worked fine on my Icoms.  Even with the Aux input gain turned up to 100 (using software V1.372) and the computer output full-up, I can't get enough transmit drive to generate any RF output.  I can hear the PSK31 transmission very faintly through the monitor circuit, but I can't increase the drive enough.  There's an adjustment on the PSK circuit card inside the PK-232, but it's full-up also.  The regular PK-232 TNC modes (RTTY, etc.) have plenty of drive and I can get 100 watts output.  The problem only occurs when the soundcard portion is active.  The Aux input is so low that I can't get the VOX to activate even with the VOX set to the most sensitive setting.  (The soundcard receive is also pretty low, but I think it's probably good enough to use).

I know the Orion can be used (for soundcard modes) without the interface, but I'm wondering if anybody has any suggestions on this.  Can I get more gain going through the front-panel mic connector?  Thanks...

Dave / K8JDC


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