Odds are not good there. The antennas have a balun at the feedpoint,
are on a tower 500 feet from the shack and the hardline runs under
ground. If there is common mode involved, it's some sort of new
hyper-super-ultra-infina-deluxe type never before discovered on earth.
73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com
On 18-Aug-18 7:12 AM, Bob McGraw K4TAX wrote:
I'd say a bit of common mode current on the feed line. I see that
from time to time with my KPA500 on certain bands/antennas.
73
Bob, K4TAX
On 8/17/2018 11:45 PM, Jeff Blaine wrote:
While running the KPA1500 in the SARTG tonight, I noticed that the
temp reading drops about 10C when transmitting. min fan speed 1.
Seems to be related to power - at 1500W it's pretty close to 10C. At
lower powers, it's less of a difference. I don't recall seeing that
before.
Normal?
73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com
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