Do you have the service manual for the IC910H?
If not, it can be downloaded here http://www.rigpix.com/icom/ic910h_service.pdf.
The manual for the KPC9612+ is available here http://www.kantronics.com/documents/KPC-9612PMX_Manual.pdf.
I will look this evening to see what may be causing your problem.
73 Glenn WB4UIV
At 02:46 PM 9/1/2014, Jim White wrote:
Looking for a bit of help here. In reassembling my 9600 bps ground station today for an upcoming launch I found two problems.
- My IC910H goes into transmit on main band when I power it on,
even with nothing connected. It worked fine a month ago. Using the 4/5-power on factory reset clears the settings but it still transmits when turned on. I'd appreciate any ideas of what else I can try, or - can I send it to ICOM for repair.
- A used KPC9612+ I bought from a local guy, which worked fine a
few days ago, now has a PTT problem. The PTT on pin 1 of the 15 pin 'high speed' port 2 connector is inverted. It is ground when the TNC is idle and goes off ground (not sure how far) when I send a packet. The PTT light for port two works properly, red when PTTing, but the output pin is inverted. I did note the backup battery appears dead because settings like the PC interface baud rate don't survive a power cycle, but I can't see how that should effect PTT polarity. As above, any ideas about a setting the inverted that, or
- where can I send this guy for repair, would be appreciated.
These two could be related since the KPC and 910 were connected for a month or so. Perhaps one failure caused the other. Just speculating.
Thanks in advance,
Jim WD0E [email protected] _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb