[Elecraft] QSK With K3 and KW Amp

[Joe Subich, W4TV]

I worked with Doc Sheller on the DEO QSK1500 many years 
ago ... 

With the current behavior of the K3's Key Out jack, 
you should be able to use the "FT-757" instructions 
in the DEO QSK1500 manual (K3, Key Out to QSK 1500 
Amp Rly In, and QSK1500 AMP RLY Out to the SB-200 
PTT line).  The QSK 1500 will follow keying from the 
K3 ... 

If you want to add an extra level of safety, connect 
a pull-up resistor between +5V and the K3 INH input 
and connect the QSK 1500 "Pos Key Out" to the INH 
input of the K3 (close to ground to allow RF).  

73, 

   ... Joe, W4TV 
 
 




> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ed G
> Sent: Sunday, April 26, 2009 2:40 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] QSK With K3 and KW Amp
> 
> 
> Hello,
>      Is any anyone using one of the old DEO QSK-1500 full QSK 
> switching units (or the similar PIN diode QSK unit from 
> Ameritron) with their K3 and external amplifier? I haven't 
> yet received my K3 but I would like to hook it up with my 
> Heath SB-220 to run full QSK.  I suspect that I will need to 
> use an external keyer (and not the one internal to the K3) to 
> trigger the PIN diode switching electronics.  Same deal with 
> software-generated CW.
>      If you are running full QSK this way with your K3, let 
> me know if you experienced any problems setting up the 
> switching, and if you are successfully running 
> contest/computer software in the CW mode with full QSK. --Ed, N3CW--
>