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Old 12-15-2015, 11:47 AM   #11
wa8yxm
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A J Pole it is not (though I do admit it looks like one) J Poles do not need radials or Ground planes. Grounding the mount should, in theory, make no difference on that style of antenna.
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Old 12-15-2015, 06:47 PM   #12
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Quote:
Originally Posted by SoCalRVer View Post
Can rotating the antenna improve signal?
Only if it's not pointing straight up (or straight down). If it is neither straight up nor straight down, then rotating it so it points straight up or down will improve the signal into other stations' vertically polarized antennas.

Not having it straight up or down will reduce the received signal strength (for each of you) by the square of the cosine of the angle by which it deviates from being parallel to the other guy's antenna. If the "other guy" is a repeater, his antenna almost always points straight up.

Ummm -- perhaps you meant rotating it about a vertical axis. No, that won't do squat.
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Old 12-15-2015, 09:44 PM   #13
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Originally Posted by wa8yxm View Post
A J Pole it is not (though I do admit it looks like one) J Poles do not need radials or Ground planes. Grounding the mount should, in theory, make no difference on that style of antenna.
It certainly looks like a J-pole. Why do you say it isn't one?

The presence of 1/4-wave radials doesn't mean it isn't a J-pole. J-poles are almost never a perfect match to the feedline, and it is often useful to provide some sort of choke to prevent RF from flowing on the outside of the coax. Such a choke can be a coiled bit of the coax, or a ferrite toroid (which is what I use on my J-poles) or -- ta-da! -- quarter-wave radials.

It may not be a J-pole anyway, of course; just wondered why you seem so sure it isn't.

A closer photo would enable us to see how it's fed. Then we could tell for sure.
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Old 12-16-2015, 10:09 AM   #14
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Maybe the problem is the net controller guy! If you are using UHF it can be flaky I have a high gain VHF/UHF repeater antenna on my tower from one direction it is shaded about 50% by the house our VHF repeater and our UHF one are at the exact same location. On VHF I can hear HT's in Conway NH about 15 miles west. The UHF repeater I get about 1/2 scale the VHF full scale. If I walk outside on the other side of the house with an HT I can talk to the the UHF repeater with 5 watts and receive it full scale.
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Old 12-16-2015, 11:18 PM   #15
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Quote:
Originally Posted by W5DOK View Post
... I was mounted on an inch and half pipe ...
Trying to visualize Doc mounted on a pipe. Doc, were you punished by impalement?

From The Devil's Dictionary, Ambrose Bierce, about year 1890:

Impale, v.t.
In popular usage to pierce with any weapon which remains fixed in the wound. This, however, is inaccurate; to impale is, properly, to put to death by thrusting an upright sharp stake into the body, the victim being left in a sitting position. This was a common mode of punishment among many of the nations of antiquity, and is still in high favor in China and other parts of Asia. Down to the beginning of the fifteenth century it was widely employed in "churching" heretics and schismatics. Wolecraft calls it the "stoole of repentynge," and among the common people it was jocularly known as "riding the one-legged horse." Ludwig Salzmann informs us that in Thibet impalement is considered the most appropriate punishment for crimes against religion; and although in China it is sometimes awarded for secular offences, it is most frequently adjudged in cases of sacrilege. To the person in actual experience of impalement it must be a matter of minor importance by what kind of civil or religious dissent he was made acquainted with its discomforts; but doubtless he would feel a certain satisfaction if able to contemplate himself in the character of a weather-cock on the spire of the True Church.


The historical Romanian statesman Vlad the Impaler was Bram Stoker's inspiration for his famous novel Dracula. In Romanian, the moniker Vlad the Impaler is Vlad Dracul.

But perhaps, instead, Doc meant something like this verse of The Erie Canal, a song I learned long ago, about age five, from a Burl Ives recording:

The cook she was a grand old gal,
She wore a ragged dress.
We h'isted her up on a pole
As a signal of distress.
Oh, the E-Ri-E was a-risin'.
And the gin was a-gettin' low,
And I scarcely think we'll get a drink
Till we get to Buffalo-o-o,
Till we get to Buffalo.
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