[TowerTalk] 40m add- on spikes question

[Joe Reisert]

Barry,

On the Cushcraft 40 meter add on kit, they are definitely traps tuned to 20 
meters.

73,

Joe, W1JR


At 02:55 PM 5/19/2003 +1200, Barry Kirkwood wrote:
>I am curious about the design of the 40m add on spikes attached to the 
>driven elements of some tribanders.
>Do  they use  20m parallel traps, ie coil and capcitor , or are they 
>"Lattin traps" ie simply a loading coil which acts as an rf choke to keep 
>the 20m energy out of the spike?
>73
>Barry
>
>
>end
>Barry Kirkwood PhD ZL1DD
>Signal Hill Homestay
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