[Elecraft] K3 and linear amp

[dalspaugh at comcast.net]

You can still use the amp by manually activating the transmit switch on both pieces of gear. I do this with one old rig I have. Not the nicest solution but it will work  By the way I have the QSK add on switch and it works real nice for QSK CW


73 Doug K3DUG


K3 #????
 -------------- Original message ----------------------
From: "Roger Marrotte" <rmarrotte at verizon.net>
> 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: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave G4AON
> Sent: Thursday, March 20, 2008 10:45 AM
> To: elecraft at mailman.qth.net
> 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
> 
> 
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