Jim:
What is spacing between your two wire elements?
Ed McCann
AG6CX
Sent from my iPhone
> On Mar 31, 2017, at 10:00 AM, Jim Brown <jim@audiosystemsgroup.com> wrote:
>
>> On Fri,3/31/2017 5:00 AM, Martin Pelt wrote:
>> I am putting a 80 meter 2 element inverted vee beam up. It will be at 120
>> feet with 39 foot boom.
>>
>> I have 2 questions dealing with switching from phone to cw without lowering
>> elements and using jumpers.
>
> I have a 2-element flat Yagi for 80/75 at 140 ft. It consists of two wure
> dipoles strung between trees, fed with low loss RG11. I retune the antenna
> from CW to SSB by switching in sections of line in the shack on the dipole
> that is the reflector. My design is based on a 2-part NCJ piece by W6AM, who
> rigged two wires, fed them with a half wave of open wire line or twin lead,
> and switched in L or C in a tuning enclosure at ground level. In my
> implementation, the L and C are provided by those lengths of coax acting as
> open and shorted stubs.
>
> I strongly agree with the advice by others that you MUST model whatever you
> plan to do.
>
> 73, Jim K9YC
>
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