[Elecraft] Err 70 PTT low power

[Jim Brown]

On 7/2/2023 7:54 AM, Christian Friess wrote:
> I don't own a K4. But my experience let me bet "RF got into a cable".
> I wonder what power you are using.

There is a SCREAMING Pin One Problem at the connector for the paddle 
and/or the key. From what I can discern from Elecraft's response, it is 
the result of the availability of the connectors, and circuitry to 
detect the presence of a connector being inserted. It may also be 
present at other rear panel connectors. I experienced it here the first 
time I fired up on 10M, with the TX antenna on a 120 ft tower 100 ft 
from the shack. I wound ferrite chokes onto those cables and to others 
at the rear panel.

73, Jim K9YC