Hi, all.
Well, I have done some fairly extensive testing on the output power readings
for my TS590, and I wonder if what I'm seeing is what can be reasonably
expected.
Let me start with some general background:
First of all, I took the voltage reading from my Astron RS35 linear power
supply, and it read about 13.8 volts--right where I had hoped it would be.
Then, I took a bunch of SWR and output power readings, on various bands and
frequencies, using my DXCC and Windom antennas.
My best readings were found on 80 meters, where I could get my Alpha Delta
DXCC antenna down to an SWR of 1.2 to 1. I can get reasonably low SWR's on
other bands and frequencies with the DXCC or my Windom, but without an
antenna analyzer, the 80-meter frequency with the DXCC was the lowest I
could get. All readings were taken with the internal automatic antenna
tuner off.
With a 1.2 to 1 SWR reading on 80 meters, my LDG Tw1 gave me a forward power
reading of 95 watts, and a reflected power reading of 1.2 watts.
Just for kicks, I had my sighted XYL look at the watt meter on the TS590,
and she said it was pegged at the maximum 100 watt level. My XYL also
approximated my output power using the meter on my Tentech 238A manual
tuner, and she said it looked to be just a hair below 100 watts.
Interestingly, for reasons which I can't quite figure out, my output power
reading was slightly lower when I used a dry dummy load. Specifically, the
readings ranged from 90 to 93 watts with the dummy load connected after the
TW1.
Do these readings seem reasonable?
Actually, I'm wondering if my TW1 is slightly off callibration.
If so, does anyone know how or whether the TW1 can be callibrated?
I'd be interested in any thoughts anyone has.
73 from Tom Behler: KB8TYJ
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