RTTY - K3

[Dave W7DPW]

I'm just getting around to getting RTTY running on my K3. Using DATA and
external FSK,

I notice that there is a difference in the output power between Mark and
Space.

Is there  some way to eliminate this situation ?

Dave


David J Drew  --  W7DPW
Over 50 Years with Same Call
Amateur Extra Since 1970
Continuous ARRL Member Since October 1957
ARRL Life Member October 1969
Vancouver, Washington  98664-4445




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[dj7mgq]

Hi Dave,

> I notice that there is a difference in the output power between Mark and
> Space.

I've noticed this too, but never really worried about it and am not  
sure if I ever reported it to Elecraft. RTTY still works very nicely  
for me on the K3.

I've wondered whether this might have something to do with the 'shape'  
of my 2.7kHz filter.

vy 73 de toby
--
DD5FZ (ex 4n6fz, dj7mgq, dg5mgq, dd5fz)
K2 #885
K2/100 #3248
K3/100 #67


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[alsopb]

When they are looking into FSK, please fix FSK POL so it inverts TX polarity.

2.38 seems to have fixed a small assymetry in the peak response of the RTTY DPF peaks for the "250" Hz filter.  It was not due to a small offset in the roofing filter.

de K3KO  

Dave W7DPW wrote

I'm just getting around to getting RTTY running on my K3. Using DATA and
external FSK,

I notice that there is a difference in the output power between Mark and
Space.

Is there  some way to eliminate this situation ?

Dave


David J Drew  --  W7DPW
Over 50 Years with Same Call
Amateur Extra Since 1970
Continuous ARRL Member Since October 1957
ARRL Life Member October 1969
Vancouver, Washington  98664-4445




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Elecraft web page: http://www.elecraft.com