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Re: USER REPORT: DX, ANTENNAS (MP-1), ETC!!! Long Post...


Demetre Valaris - SV1UY
 

--- In FT817@y..., julian@t... wrote:
--- In FT817@y..., "Demetre Valaris - SV1UY" <sv1uy@s...> wrote:
I did try a coaxial balun. It made it even harder to get a match,
because the antenna could not use the coax shield and radio as
additional ground plane. I dispensed with the coaxial balun because
I
decided it was a workaround for a problem that should not exist if
the antenna was set up with an adequate ground plane.

How do you manage with the MP-1 attached to the 817 chassis? A
coaxial choke is no use because the ground of the antenna and the
radio case are directly connected.
Hi Julian,

I honestly do not know why the coaxial balun does not work for you.
I followed what N2CKH suggested ().

When I mount the MP-1 on the FT-817, I do not use any coaxial at all.
I have made a threaded hole on the left heatsink of the FT-817 and
screw the MP-1 base there. Check Files - Antennas - MP-1 and you will
see how is it done. I just use a short jumper with 2 banana plugs on
either side.

Hope this helps.

73 de Demetre SV1UY

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