[TowerTalk] vhf/uhf antenna mounting help please

[Larry Banks]

HI Tom,

If the mast is not metallic it probably doesn't matter.

73 -- Larry -- W1DYJ



On 1/26/2026 16:33, wa9wsj via TowerTalk wrote:
> That is correct, not a repeater set up, but, I like the idea of vertical mounting. This makes things easier. But I still ask, how far from the mast, off to the side, should the lower antenna be? I'm thinking some distance not being an equal fraction or a multiple of the bands involved, that being the ham 2 meter and 70 cm bands.
>
> Thanks again!
> Tom wa9wsj
>
>
>
>
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>
> On Monday, January 26th, 2026 at 6:23 AM, jim.thomjim.thom at telus.net <jim.thom at telus.net> wrote:
>
>> Date: Sun, 25 Jan 2026 02:43:24 -0800
>> From: Jim Brownjim at audiosystemsgroup.com
>>
>> To:towertalk at contesting.com
>> Subject: Re: [TowerTalk] vhf/uhf antenna mounting help please
>>
>>> In general, where one is a receiving antenna for a repeater, it is
>>> usually given the advantage of height, over the transmitting antenna,
>>> which can compensate with greater output power.
>>> 73, Jim K9YC
>>> We need to mount a vhf/uhf aluminum HAM band j-pole and a COMMERCIAL
>> vhf/uhf, (Comet GP->6NC), 153-157MHz, 460-470MHz, fiberglass vertical
>>
>> antenna, (10ft tall, 3.5 lb weight), on a cross >boom.
>>
>>
>> He's not running a repeater setup. 2 x ants, one is a J pole and the
>> other is for commercial freqs.
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