This might also be a consideration in antenna testing. If there are *any*
other antennas in the near field,
e.g., on the ground or on saw horses for example, the performance of a test
antenna might be affected....
Don N7EF
On Mon, Sep 30, 2013 at 6:37 PM, GARY HUBER <glhuber@msn.com> wrote:
> We used to do something similar with commercial radios by putting a gain
> antenna outside and high use low loss transmission line to basement and
> interior spaces of large buildings where quarter wave pick up antennas were
> used to couple with handheld radios' antenna to talk out to a repeater.
>
>
> 73 ES DX,
> Gary -- AB9M
>
> -----Original Message----- From: Big Don
> Sent: Monday, September 30, 2013 8:22 PM
> To: W5XB
> Cc: towertalk@contesting.com
> Subject: Re: [TowerTalk] Interesting development
>
>
> This effect might explain the phenomenon of "working someone on your dummy
> load."
> You may be just "working" your tribander 100-odd feet out in the yard,
> while your e.g. tribander is doing the heavy lifting. The dummy load is in
> effect "stacked"
> with the tribander....
> Don N7EF
>
>
> On Mon, Sep 30, 2013 at 6:10 PM, W5XB <w5xb@att.net> wrote:
>
> Can stacking improve gain? That's an easy one, but wait .
>>
>>
>>
>> Last week, I put a new Steppir 3 L together and put it on the roof
>> (couldn't
>> get it up tower for the contest). It is 46 feet under a Force 20/40 at 67
>> feet. The Force 40m elements are nicely resonant on 15m and 10m.
>>
>>
>>
>> While on 10 meters Saturday, I turned the Force and noted signal
>> improvement
>> and worked 70+ Qsos.
>>
>>
>>
>> Later, I looked at the coax switch, the whole time, I had been
>> transmitting
>> on the Steppir set for 10m on the roof.oops, but it made a difference
>> where
>> the Force was turned.I proved that 70 times.
>>
>>
>>
>> After the contest Sunday, I turned the Force to EU and was listening to an
>> M0 on 20m. The Steppir elements were homed. Then I put the Steppir on 20m
>> and watched the S meter go up 3 s units.change in band conditions I
>> thought,
>> so I homed the Steppir elements and found the M0 went down 3 s units.
>>
>>
>>
>> I repeated homing the elements 3 times, and each time, the M0 went down in
>> signal strength.
>>
>>
>>
>> What started as an oops, turned out to be an interesting experiment. The
>> passive elements without a direct connection improved received signal
>> strength, and transmit.
>>
>>
>>
>> I have looked stacking since 1970 when I first got literature from Mike
>> Ercolino at Telrex and yearned for a Big Bertha.
>>
>>
>>
>> But this.is interesting.thought I would share, my oops, and the
>> interesting
>> development.
>>
>>
>>
>> 73s,
>>
>>
>>
>> Grant
>>
>> W5XB
>>
>>
>>
>>
>>
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