Subject: Re: [Antennas] Telescoping Aluminum Tubing
van lincoln wd8aam
[email protected]
2002年1月04日 02:09:24 -0600
here is what you guys need. I've got one, and they work for
portable or permanent installation. you can buy two and get 60+ feet
because they are stiff and won't bend.
van wd8aam
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1317168301
At 11:15 PM 1/3/02 -0800, you wrote:
>Didnot someone here talk about pulling up a vertical of about 60ft by using
>a tall tree?
>>I have been thinking about a method of pulling part of the telescoping part
>up by itself. Now how do the telescoping antennas for cars work? This I
>have been trying to find out.
>> I think that the stain on the 'walking' up may prove too much. I tried
>on some of my putting together of a mast of various pipes. Put a small
>kink in one section.
>>Chris opr VE7HCB
>>>>At 09:34 PM 2002年01月03日 -0800, you wrote:
>>Thanks to all for the useful information my post generated.
>>Assuming I purchase 6' lengths of 6063-T832 drawn aluminum tubing (the
>>tubing where each size telescopes into the adjacent sizes) from Texas
>>Towers, how high a vertical do you think I could erect with one person
>>walking the tubing up and another person holding the bottom on the ground?
>>If I purchased each size and telescoped them with a 1' overlap, I
>>calculate I would have a 76' length. Assuming the tubing didn't buckle, I
>>think erecting it would be a big problem. I would like to be able to
>>erect an 80 meter vertical, which ideally would be around 60' high. Those
>>of you who erected 40' antennas, could you have gone higher without
>>serious difficulties? What was the maximum size tubing you used?
>>Thanks, Jim, w6ivw
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