Tuning AV-680
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| Aug 29th 2016, 23:37 | |
AB1ZKTotal Topics: 0 Total Posts: 0 |
Group, I have been having trouble tuning the 20 Meter and other bands on the AV-680 Hygain antenna. My "guess" is that the tuning lengths in the AV-640 manual for the capacitance hat are the same for the AV-680. Has anyone tried the tuning step ? The initial length for 20 Meters is 14.5 inches as shown on the diagram and the length in the AV-640 is about 10 inches. 73, Marc AB1ZK |
| Sep 24th 2016, 00:29 | |
AB1ZKTotal Topics: 0 Total Posts: 0 |
I worked out the information myself, as I received no replies. Length of spokes on Capacitor Hat : 80 Meter 48 inches 40 Meter 38 inches 30 Meter 23.5 inches 20 Meter 10 inches 73, Marc |
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