Topband: Effect of trees

[Carl Jonsson]

The difference between winter and spring/ autumn and winter usually is
very distinct up here and moisture is quite constant throughout the
year. I have noticed that I have to  adjust the phasing when temp. is
going above zero and (in fall) it´s been below zero.
Sometimes spring is late, sometimes earlier but the difference in
phasing always is there.
73 SM6CPY

2013/8/6, Guy Olinger K2AV <olinger at bellsouth.net>:
> In general, without knowing any details, it could simply be an indication
> of insufficient radials with a large seasonal change in ground moisture.
>  If however during the dry season there is no change after a heavy rain and
> the change remains constant across the season, then the smart betting is on
> the trees.
>
> Distance from wire to trunk(s) and distance to foliage would be useful.
>
> 73, Guy.
>
> On Tue, Aug 6, 2013 at 1:32 PM, Robert Kavanagh
> <73rjkosz at sympatico.ca>wrote:
>
>> But, Carl, there may be other variables changing in the system, for
>> example, the amount of moisture in the ground. So it's not a controlled
>> experiment.
>>
>> Bob
>> VE3OSZ
>>
>>> Every autumn (when the fluid is leaving the trees) and every spring
>>> (when
>>> the fluid is coming up again) I have to go out and adjust the phasing in
>>> my
>>> 2 el phased vertical for 160m. So some kind of effect does high trees
>>> have
>>> on the antenna.
>>> 73 SM6CPY
>>>
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>> Topband Reflector
>>
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> Topband Reflector
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