On Dec 13, 2007, at 4:51 PM, Ed Tump wrote:
Greetings,
I bought a Buxcomm adaptor for my FT60 to run some sound card packet. I really like the unit and it sure works great. The only thing I noticed is when you reboot or lose the packet engine, the unit "keys" the mic and transmits. It only stops transmitting when you restart the packet engine. I would not want to TX unless I wish to.
Anyone found a way around this concern.
Hi Ed,
It really has more to do with what state the pin on the serial port on the PC gets "left" in when the software crashes. If the pin is sending voltage to the interface, the rigs going to stay keyed.
Does the FT-60 have a time-out timer as many modern rigs do? That could be set to limit the amount of transmit time...
Otherwise, you'd have to build up an external time-out timer circuit that would kill the PTT after a set period of time, if you're finding that the software crashes a lot.
More difficult for most folks, but "do-able" at least from an engineering standpoint would be to write a software watchdog timer that accomplishes the same thing... monitor the pin and if it's asserted for too long, whack it over the head in software.)
(Of course, root-cause analysis would indicate that you just need better software! GRIN!!! Something that doesn't crash so much.)
-- Nate Duehr, WY0X nate@natetech.com