K2 4777 comes to life and a question

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K2 4777 comes to life and a question

Mike Monger
Hi Fellow Elecrafters,

K2 4777 came to life a couple of days ago (Monday)with my 80 mtr loop (used on all bands) and has since made itself known in MA(80 mtrs), ME(80 mtrs), PA(40 mtrs), TX(40 mtrs), MD(40 mtrs), Switzerland(40 mtrs), Bosnia(40 mtrs) and Spain(40 mtrs).  I was running 10 watts when I made the first contact in MA on 80 mtrs.  Since then I have run 5 watts to work the other stations.  And, (I must add) there were some fair pileup condx on the Switzerland and Bosnia stations but I was able to snag them on the second or third try.

Question:  Do any of you K2 users notice an increase in power or current level when you put the K2 into tune mode and monitor one or the other???

Mike
KT2E
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RE: K2 4777 comes to life and a question

Ron D'Eau Claire-2
Mike KT2E asked:

Do any of you K2 users notice an increase in power or current level when you
put the K2 into tune mode and monitor one or the other???

-----------------------

Well, it varies because the power control circuits are disabled in TUNE
mode. That's to keep changing loads (like fiddling with an antenna tuner)
from driving the power control circuits nuts as it tries to keep a
"constant" RF voltage at the output while the load jumps all over the place.


So the power you see in TUNE will often be different from OPERATE. Indeed,
if you have a K2/100, your TUNE power starts out about 20 watts, even if the
POWER  control is set for 100 watts. For a QRP K2, the power out in TUNE is
about what the POWER control is set for, but not exactly. Also, the power
tends to drift upwards while the key is down and the finals warm up, and
with the POWER control circuitry disabled, it will do so in TUNE.

Ron AC7AC


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