[Elecraft] Connecting the K3 to an expert amps 1.3K-FA

[Jim Brown]

Hi Bill,

I recently bought a used 1K-FA from my neighbor. I use only an RCA 
keying cable from the K3 keying out to the 1K-FA. When the amp is in 
Operate mode, a quick dit or tap on the mic will allow it to sense the 
frequency and switch to the right band. I run my KPA500 and Alpha 87A 
the same way, although both have a serial port.

One thing I learned about the 1K-FA that may or may not be true of the 
1.3K-FA is that it remembers last antenna settings for every band, and 
that the signal comes through the tuner for RX. If the amp is on another 
band, I often don't hear much when I switch bands on the radio until I 
hit that dit to switch bands on the amp.

73, Jim K9YC

On Tue,12/20/2016 9:21 AM, Bill Roberson wrote:
> I guess an FDTI cable from the K3 to a computer USB port would allow computer control of the K3, but what cable connections are needed from the K3 15 pin connector and/or the DB9 pin connector to the amp?