Thanks for the response Dave. Yes the Acom (and other amps w. qsk keying loops) will work well without TX EN/INH wired. But Acom recommends using it whenever possible. It provides not only a safety valve to cutoff the transmitter instantly when there's a serious fault in the amp, but also potentially provides improved qsk if the transceiver's timing fully supports the keying loop.
I was just informed of a reflector posting of Dec 23 that I must have missed (apologies) from Jerry N8BM at http://mailman.qth.net/pipermail/elecraft/2007-December/079341.html It's obvious upon reading Jerry's posting that an amplifier keying loop function is NOT yet implemented on the K3, despite the firmware change to TX INH - there's currently no way to get the K3 out of inhibit mode and begin xmsn if it ignores PTT/key input while in inhibit mode. So all we can do is wait and hopefully Elecraft will eventually announce that they have indeed implemented support for amplifier keying loop in a new firmware update. 73, Barry N1EU Dave G4AON wrote: > > Barry > > I run a K3/100 with an Acom 1000 on CW and can confirm the Acom 1000 > doesn't need TX inhibit wiring. I cannot comment on other Acom > amplifiers. While the manual doesn't state the change over time of the > amplifier, discussion with the UK importer suggests it is changed over > prior to the 10 mS delay present with the K3 before RF appears. > > The connections are a single phono to phono screened lead between the K3 > and Acom for the keying and PL259 to PL259 for RF. > > 73 Dave, G4AON > K3/100 #80 > > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > -- View this message in context: http://www.nabble.com/K3-current-status-of-TX-INH--tp15190922p15196916.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
