I am driving the 2000A with a K2/100. Not sure if there is any difference between the amps for keying? T/R is set at .02. Used to have it at .00 but too much popping. Have not received any key click complaints at either setting. As with any of my rigs or amps I have used a power mosfet to key the amp. N2TK, Tony #3481
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of David Honey Sent: Thursday, May 11, 2006 11:11 AM To: Vic K2VCO Cc: [email protected] Subject: Re: [Elecraft] Acom Amps At 15:56 11/05/2006, Vic K2VCO wrote: >David Honey wrote: > >>I regularly use my K2/100 with an Acom 1000 for SSB and CW. >>The Acom 1000 uses a vacuum relay for switching. I found that using the >>standard T/R delay of 5ms led to some complaints of key clicks. So I use >>a longer setting for semi break in (25-40ms) and that works well and I've >>not had any complaints since. > >Are you talking about a setting on the Acom? Or the K2? Do you know if >the clicks were heard on make or break? I've keyed vaccuum relay t/r >systems directly with the K2/100 with no problems. The 15 ms. or so >'headroom' (time between the activation of the amp key output and the >appearance of RF) provided by the K2 has been adequate to allow the relay >to close without hot switching. I meant the QSK setting on the K2 (aka the T/R menu item). The Acom 1000 has no such setting - it has no software control at all. I don't think there is an easy well to tell how the clicks were being generated. All I can tell you is that with T/R=0.05, I had several comments/complaints I was causing QRM. Since changing T/R to 0.3 or 0.4, not one single complaint or comment about such key clicks. Perhaps T/R can be lower. I just didn't want to incur the wrath of others on the band. It might also save on wear-and-tear on the relay. 73, David M0DHO _______________________________________________ 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 _______________________________________________ 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
