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Old March 20th 06, 10:18 AM posted to rec.radio.amateur.antenna
ml
 
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Default vert vs dipole gut comparison



thanks very much to all those that replyed,

but don't forget, we all agree that somtimes the dipole will work better
sometimes the vert but the realy trick i wonder about is how many times
will the vert be useful

my guess is prob 50/50 but wasn't sure how 'random' it might all be


In article , ml
wrote:

hi


i am pondering this again after thinking the odds of being about to put
a beam up are slim

currently i have a nice dipole CF horiz via a topside sgc , i am happy
w/it


i think i might be able to get a verticle (all bander) up there but then
i wonder

overall if it would really pay from just a performance point of view

the reviews i see i personally average as some signals would prob come
in bettter on one and some signals the other 'depending'

but i guess i can't quantify if at the end of the day i'd say wow
really glad i had that vert or if perhaps having a 2nd antenna would
really net me only a marginal end of year bunch of extra qso's


perhaps a unrelated question #2

given the building master tv antenna is close by, would one guess that a
verticle or a small triband beam would give off more tvi??


assume both would be slightly higher than the tv ant but close proximity

thanks

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Old March 20th 06, 04:08 PM posted to rec.radio.amateur.antenna
Yuri Blanarovich
 
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Default vert vs dipole gut comparison


"ml" wrote

but don't forget, we all agree that somtimes the dipole will work better
sometimes the vert but the realy trick i wonder about is how many times
will the vert be useful

my guess is prob 50/50 but wasn't sure how 'random' it might all be



To understand the benefits of vertical vs. dipole, one has to look at the
radiation diagram of each antenna at particular height. Vertical has the
lobes, where horizontal dipole has the nulls and vice versa. The other
aspect is the polarization which plays bigger role in close range signals,
long range DX signals have varying polarization after they go through the
path. Then there are varying angles of arriving signal depending on
propagation media.
Another spect is that Vertical has omnidirectional pattern, while dipole has
nulls in the pattern (off the ends).

Depends how the antenna pattern and properties fit the current propagation
mode/situation, that antenna would be better. So one has to look at the
antenna pattern and have idea what propagation angles and polarization we
are looking for. Verticals need good ground/soil/radials/salt water for
better low angle performance.

The answer to which is better: vertical or dipole is - YES, jus' depends
wasaaaap (or down)!

Yuri, www.K3BU.us


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Old March 20th 06, 11:36 PM posted to rec.radio.amateur.antenna
 
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Default vert vs dipole gut comparison

Is the polarity of the sending station and receiving station relevant
to this discussion??
That is, a dipole sending station and a dipole receiving station would
tend to out perform a dipole sending station and a vertical receiving
station and vice versa?

Are there more stations with dipoles than stations with verticals?

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