Hello,
Today I was reading high SWR in my 20 mts yagi.
2.5:1 in 14020
1.9:1 in 14200
1.7:1 in 14300
I have the radio connected to the amp, to the wattmeter and to WX0B
six-pack. In all this runs I have small pieces of 50 ohms coaxial.
I connected the 20 mts yagi antenna direct to the K3 and the readings in the
radio were:
1.4:1 in 14020
1.0:1 in 14200
1.0:1 in 14300
I know will be some variation when you go through all the runs from radio to
amp, wattmeter and antennas switch, but not too high that happens in 20 mts.
I tested all the other bands and SWR is lower when the antenna is connected
directly, but not too much difference, for example:
SWR in the
Main setup
(amp, wattmeter, SWR with antenna
Frequency Antenna switch) direct to the K3
28030 1.5:1 1.2:1
28500 1.1:1 1.0:1
21020 1.5:1 1.3:1
21200 1.2:1 1.0:1
21300 1.1:1 1.0:1
14020 2.5:1 1.4:1
14200 1.9:1 1.0:1
14300 1.7:1 1.0:1
7010 1.3:1 1.0:1
7050 1.7:1 1.3:1
7100 2.0:1 1.5:1
3505 1.5:1 1.5:1
3550 1.2:1 1.2:1
3600 2.5:1 2.5:1
1810 1.2:1 1.1:1
1830 1.7:1 1.6:1
1850 2.3:1 2.3:1
So SWR is reasonable higher when connected through the amp, wattmeter and
antenna switch in all bands, except in 20 mts that there´s a big
diference!...
Is not a problem of the sixpack. I connected the 20 mts antenna with the
same runs of coaxial with a 2 position Daiwa switch and have the same SWR
that it have when connected to the sixpack.
Any idea how can I lower the SWR in the 20 mts antenna when connected to the
antenna switch?
Thanks,
Jorge
CX6VM
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