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Looking for a way to connect your computer to your Icom rig?
Take a look at the
Black Cat Systems USB Icom CI-V Interface
A Sky Loop Antenna on HF
I took a bunch of SWR readings over the ham bands (or at least where I can operate) using my
skyloop antenna.
These are the results. Low SWR can of course be misleading, it could be a case of low antenna
impedance plus high resistive losses masquerading as a low SWR.
Freq SWR
1800 2.1
1825 1.9
1850 1.8
1875 1.6
1900 1.5
1925 1.3
1950 1.3
1975 1.2
2000 1.3
3525 3.5
3600 3.3
3800 1.9
3825 1.8
3850 1.6
3900 1.4
3950 1.3
4000 1.2
5332 2.8
5348 2.8
5368 2.9
5373 2.9
5405 3.0
7025 1.1
7050 1.2
7075 1.3
7100 1.4
7125 1.6
7200 2.0
7250 2.3
7300 2.6
10125 3.0
14100 3.5+
14250 3.5+
14350 3.5+
18150 3.4
21025 2.3
21100 2.6
21250 3.2
24900 2.0
24950 2.2
24990 2.3
28000 2.5
28200 2.0
28300 1.7
28500 1.4
28700 1.5
28900 2.0
29100 2.7
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info@blackcatsystems.com
Updated July 18, 2010
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