thanks everyone for all that.
I notice in the user manual, it does show extended freq ranges to include all
the WARC bands except 24.5
Mhz.
160M: 1.8-2.0Mhz
80M: 3.3-4.4Mhz
40M: 6.3-8.3Mhz
20M: 9.5-15.5Mhz
15M: 15.5-21.5Mhz
10M: 24 - 29Mhz
So yeah, 10M was "centered" at 26Mhz before my change. So maybe that was what
they were attempting to do.
elsewhere they claim for the input network:
Circuit type: Pi-network, slug tuned coils
maximum VSWR at resonance: 1.2:1
minimum 2:1 VSWR bandwidth: 20%
I assume that's 20% of the center frequency. So that would be plus or minus 10%
for 2:1 SWR
so 10M high would have been 26+2.6 = 28.6Mhz
So the WARC issue is making it make more sense. I guess the manual is just not
correct about the components.
The efficiency seemed low at 15 and 10. I was hoping tuning up the input
networks would help that.
(haven't fully checked result until I put it all back together)
-kevin
ad6z
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