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Tuning AV-680

Aug 29th 2016, 23:37

AB1ZK

Joined: Apr 4th 1998, 00:00
Total 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

AB1ZK

Joined: Apr 4th 1998, 00:00
Total 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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