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.
Thanks.
73,
Ed
KC9GWK Grid EN52
AmSat Member
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
Why build a time out timer when a simple inline switch to break the circuit will do?
Kind Regards Stephen G6SGA
On Dec 19, 2007, at 2:40 AM, Stephen Thornber wrote:
Why build a time out timer when a simple inline switch to break the circuit will do?
Because he was talking about unattended operation. I assume so anyway.
What I believe he was saying is that in unattended digital operation (packet, whatever) if the software dies it leaves the transmitter stuck on.
If the software crashes and you're sitting there watching it, you would just reach over and turn the radio off and restart the software. No watchdog timers needed.
Logically I can only assume he was talking about not being there to watch it since if you're sitting there, it wouldn't be a problem at all. It would only be annoying.
-- Nate Duehr, WY0X nate@natetech.com
participants (3)
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Ed Tump -
Nate Duehr -
Stephen Thornber