[Elecraft] Power limit for digital modes?

Fred Jensen k6dgw at foothill.net
Tue Mar 27 12:12:47 EST 2007


Ken Kopp wrote:
> Does anyone have a "feel" for the "safe" power level that may be used 
> when transmitting digital information
> like PSK-31?
> 
> 73! Ken Kopp - K0PP
> k0pp at arrl.net

FWIW [and for a K2/100]:  I switched my RTTY station to my K2/100 late 
last year to take advantage of the RTTY filters [can't even begin to 
describe the changes that made for me in RTTY contests :-)]  Even at 
50W, the heat sink got very hot, particularly if I was running stations. 
  I finally took a 12VDC muffin fan I had from an old confuser, put a 
small piece of sticky back velcro on the center, and stuck it down to 
the heat sink.  It blows quite a bit of air down onto the HS, and now, I 
can run the K2/100 at about 80W driving the amp to about 800W and the 
heat sink doesn't even warm up.

As I said, FWIW.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2007 CQP Oct 6-7
- www.cqp.org


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