[Elecraft] Echo when transmitting

[Fred Jensen]

On 3/16/2013 5:50 PM, Tony McClenny wrote:

> Disconnected K3 input to computer soundcard and the SSB noise / echo
> disappeared - now to fine tune.  Thank you.

There was a time, around the time when dirt was young, that the mic had 
a 1/4" phone plug on it and went to the 1/4" mic jack on the front panel 
of the transmitter, the headphones had a 1/4" phone plug that was 
inserted into the 1/4" jack on the receiver, the key had a 1/4" phone 
plug plugged into the 1/4" key jack on the front or rear panel of the 
transmitter, PTT was STT ["switch to transmit"], a toggle switch usually 
on the transmitter, and there was no computer ... they hadn't been 
invented yet.  OK, the Collins KWM2 and S-line had a 3/16" two circuit 
mic jack, Art was always a little ahead of the pack.

My experience has been that, if something is going wrong or is producing 
unexpected results, disconnect the computer.  Works just about all the time.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org