kd4e wrote:
> When I listen on my 80M dipole via a tuner effective for 6M
> (MFJ-945E) the band is much more quiet so I can hear more
> signals.
>
> When I listen on my 6M delta loop I get a ton more noise so it is
> much more difficult to even detect some of the same signals -
> but my transmitted signal receives better reports.
>
> The delta loop is fed at the bottom of the inverted triangle so
> the orientation is more horizontal, like the dipole, than vertical.
>
> WDYT?
>
>
What is your receiver? I'd suggest turning off the pre-amp(s) and even
adding or turning on some attenuation. The problem with modern rigs is
many of them are broadband. So, tons of noise gets into them. Especially
when one uses a pre-amp. Yaesu has IPO or Intercept Point Optimization,
which when active is actually turning off the pre-amp.

Using the MFJ antenna tuner is probably acting like an attenuator, just
what your receiver seems to need.

Hope this helps.

--

<><Steve/WM5Z><>
Location: Las Cruces, NM: DM62oh
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