A TV rotor will mount at the top of the mast. A TV rotor isn't up to the
task of turning the whole push up mast setup from the bottom. Weight of
the mast, antenna, coax, and downward pressure of guy wires is way too much
load. Instead of using U bolts to clamp the rotor to mast, there are studs
that are screwed into the side of the rotor housing, then clamps and nuts
are put on so the mast is squeezed between the clamps and rotor housing.
Right above the stud/clamp arrangement is a little projection that rests
on the top of the mast
Most rotors won't handle a 1/2 mast. I think average for TV rotors is 1
1/4 up to 1 3/4 or so. 1 1/4 TV mast comes in 5 or 10 foot lengths and
would be better than 1/2. Electrical metal conduit is also a good choice
for a light duty application.
Into the top of the rotor you mount a short section of mast to which is
attached the antenna. How much mast you can put above the rotor depends on
how beefy the rotor is and the windload of the antenna.
73, Steve KW3A
----- Original Message -----
From: "Colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, April 11, 2008 5:27 PM
Subject: Re: Another question about rotors.
> ok, since i've never had the chance to actually check out a roter, could
> one mount a tv roter to the top of a push up poll? Or do most roters have
> to be mounted in a tower?
> Or, can a roter be mounted to a flat surface?
> Perhaps an explanation of the physical design of your typical roter might
> help.
> I sort of assume that they either sit at the top or somewhere down the
> tower
> and that a push up is then bolted into the roter.....so thus my question
> of
> weather a roter can go at the top of a push up or if it can only sit at
> the
> bottom of a push up poll.
> I didn't realize small roters were so cheap these days and the channel
> master that was mentioned the other day with direct keypad entry for the
> heading sounds very good.
> I have a 7 element beam at the top of a 10 foot chunk of 1/2 inch pipe on
> the fence...i have to turn it manually right now, but a roter would be
> nice...i just don't know without actually physically finding someone to
> let
> me feel a roter or buying one, if I can install it at the top of the 1/2
> inch pipe and have it turn the beam, or weather I would need to ground
> mount
> the roter and have it turn the whole pipe.
> 73
> Colin, V A6BKX
> ----- Original Message -----
> From: "Steve" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, April 11, 2008 3:18 PM
> Subject: Re: Another question about rotors.
>
>
>> No, usually you have to provide a thrust bearing. But, if you are only
>> putting up a two-meter beam, I wouldn't sweat it.
>>
>> Steve
>> ----- Original Message -----
>> From: "Rick" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, April 10, 2008 5:49 PM
>> Subject: Another question about rotors.
>>
>>
>> > Hi list, When I by a rotor for my 2 meter beam will I need to buy a =
>> > thrust baring or will that come with the rotor?
>> >
>> > 73 KB3GOS
>> >
>>
>>
>>
>> --
>> No virus found in this incoming message.
>> Checked by AVG.
>> Version: 7.5.519 / Virus Database: 269.22.12/1373 - Release Date:
> 4/11/2008 9:17 AM
>>
>>
>
>
>
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