I guess as of now I'm out of luck if I want to use my amp with a K3. I just checked the manual for my AL-811H and "The open frame relay in the AL-811H takes approximately 15ms to switch states". My K3 is on order. I hope there's a K3 firmware change made before I get my K3, that will allow me to adjust the change over timing. I'm far from an expert with amps. I have no idea what an average switch over time is for amps in general. Ameritron sells a high speed switching option, the QSK-5, that reduces the switching time to 1ms. It costs around $300.00. A K3 firmware change would sure be less expensive.
Roger, W1EM -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave G4AON Sent: Thursday, March 20, 2008 10:45 AM To: [email protected] Subject: [Elecraft] K3 and linear amp Todd Beware the manual for the AL1200 doesn't appear to mention the change over timing of it's relay, the K3 outputs RF approx 10 milli seconds after the linear keying line goes low - measured on mine with a half decent scope. There is currently no adjustable delay for that timing in the K3 (although it has been mentioned as being on the "to do" list), even my TS-480 has a choice of 10 mS or 25 mS - it only costs half the price of a K3... 73 Dave, G4AON K3/100 #80 ================ One question remains and it is probably ridiculously simple but I can not see it. How do I get the K3 to trigger the relay in my Ameritron AL 1200?. I see no connection for a cable to the amp nor nothing in the config menu. thanks in advance! 73 de todd WB2ZAB _______________________________________________ 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

