[Elecraft] Echo when transmitting

[Tony McClenny]

Ideas to correct the following would be appreciated - thank you in advance.
This is something new and I am perplexed.

 

I am using a Heil Pro-Set Plus microphone/headphones (with elements HC4 &
HC5).  The microphone line is connected to rear of K3 in the "Mono" jack.
The Heil headphone 1/8" stereo plug is connected on rear of K3 to "Phones"
jack.  The footswitch is connected to rear of K3 "PTT In".

 

When in VOX the K3 stays in transmit and sounds like echo of shots (my
imaginary sound) - when in PTT (preferred mode), as soon as I press the
footswitch to transmit, K3 TX light turns red, headphones outputs a series
of sound of echoes even before I say anything and if I speak my voice
echoes...

 

Mic Select                            FP.L     with Bias set to Off

Mic + Lin                                 On

Mic Gain                                 20

Comp                                       12


VOX Gain                               050

VOX Delay                             0.50

 

AF Gain                                  High

 

SPKRS                                     2

SPKR+PH                                Yes

 

- Tony, N3ME -


118 Ashwood Street
Bethany Beach, DE 19930-9699
(302) 539-5638

Grid:  FM28lm

 <http://www.n3me.net> http://www.n3me.net
Elecraft K3 # 2462

PVRC Member