I've used the fiberglass poles like the power company uses to reset
breakers up high on poles. I sold a 30 foot one and have a 35 foot one
here.
Used it to support a number of wire antennas - the most recent a
multiband vertical doublet. They are very heavy wall all the way to
the top section and have pop-out buttons that come out when they reach
max height. They both came in bright yellow, but I painted them both a
light beige and they work exceptionally well.
Supposedly they are available at power companies as I"ve been told
they can't use them but for a limited time before they have to be
replaced.
Mike, k5wmg
Pipe Creek, Texas
Green cars, slow boats, big dogs, and summers off to write
Please do not print this e-mail unless it is completely necessary
On Sat, Mar 14, 2009 at 6:34 PM, larryjspammenot@teleport.com
<larryj@teleport.com> wrote:
> In this quest for a telescopic mast for supporting an inverted vee, the first
> one I ran into was the Spiderbeam "Aluminium Telescopic Mast 18m (60ft)".
> Yes, they spell it "aluminium" throughout the ad. They claim that it will
> support the portable Spiderbeam HF antenna at 60 ft, and the Heavy-duty
> version Spiderbeam when extended to a height of 14m (46 ft). It is 11
> sections, transportation length is 6'-7", using tubing from 2-3/4" down to
> 1-1/6", the weight is 40 lbs.
>
> However, the price is $759. http:/www.spiderbeam.us
>
>
> -----Original Message-----
>>From: Pete Smith <n4zr@contesting.com>
>>Sent: Mar 14, 2009 5:47 AM
>>To: "larryjspammenot@teleport.com" <larryj@teleport.com>,
>>towertalk@contesting.com
>>Subject: Re: [TowerTalk] DX Engineering 66-Foot Vertical?
>>
>>You might try www.tmastco.com. It is run by Henry, K4TMC, and stocks a
>>variety of fiberglass and aluminum products that will meet your needs,
>>probably for a lot less than you can build them yourself.
>>
>>I'm a satisfied customer.
>>
>>73, Pete N4ZR
>>
>> At 02:21 AM 3/14/2009, larryjspammenot@teleport.com wrote:
>>>I was particularly interested in the construction of the 66' DX
>>>Engineering vertical, not to use as an actual vertical antenna, but to
>>>mount in a tripod on my roof and then use it as a tall support for an 80M
>>>inverted vee. I figured an aluminum mast (it doesn't have to actually be
>>>the full 66 feet tall) would be stronger than buying one of those
>>>telescoping fiberglass poles that I see frequently advertised on most of
>>>the ham radio web sites. They appear to become pretty small at the top and
>>>can probably only support a number 18 to 22 wire inverted vee for a field
>>>day weekend, at best. Just a sturdy, tall support for a wire antenna was
>>>my real interest in considering this telescoping mast project. My Buternut
>>>HF6V more than performs well for any DX I might want to chase.
>>>
>>>
>>>-----Original Message-----
>>> >From: Jack/W6NF <vhfplus@bmg50.com>
>>> >Sent: Mar 13, 2009 8:05 PM
>>> >To: n8de@thepoint.net
>>> >Cc: towertalk@contesting.com, N7KA@comcast.net
>>> >Subject: Re: [TowerTalk] DX Engineering 66-Foot Vertical?
>>> >
>>> >On Fri, Mar 13, 2009 at 6:03 PM, <n8de@thepoint.net> wrote:
>>> >
>>> >> Let me calculate:
>>> >>
>>> >> 6 x 11 = 66'
>>> >>
>>> >> 64' vertical
>>> >>
>>> >> this means the TEN overlaps occupy only 2' ?
>>> >>
>>> >> 24/10 = 2.4 inches.
>>> >>
>>> >> I'd never put up a vertical with only 2.4" per overlap... disaster
>>> >> looking to happen.
>>> >>
>>> >> Now, if there are 12 sections with 11 overlaps:
>>> >>
>>> >> 6 x 12 = 72'
>>> >> 64' vertical
>>> >>
>>> >> 8' of overlap in 11 places
>>> >>
>>> >> 96/11 = about 9" per overlap.
>>> >>
>>> >> Much safer construction, in my humble opinion.
>>> >>
>>> >> 73
>>> >> Don
>>> >> N8DE
>>> >>
>>> >>
>>> >> Quoting N7KA@comcast.net:
>>> >>
>>> >> >
>>> >> >
>>> >> > Tubing cost alone is $142.20 from DXE plus the mast kit comes with
>>> >> > clamps. Not to bad a deal for the mast kit. Note that most tubing
>>> >> > is slit at one end for use of "hose" clamps. It takes 11 6ft
>>> >> > sections to be for 64ft vertical.
>>> >> >
>>> >> >
>>> >> >
>>> >> > Arne N7KA
>>> >> > ----- Original Message -----
>>> >> > From: "Jim Brown" <jim@audiosystemsgroup.com>
>>> >> > To: "TowerTalk" <towertalk@contesting.com>
>>> >> > Sent: Saturday, March 14, 2009 1:06:11 AM GMT +00:00 Monrovia
>>> >> > Subject: Re: [TowerTalk] DX Engineering 66-Foot Vertical?
>>> >> >
>>> >> >
>>> >> >> It would be interesting to see a printout of all the diameters,
>>> >> >> lengths wall thicknesses and any other relevant info for each of
>>> >> >> the aluminum tubing pieces that comprise one of these 66' vertical
>>> >> >> antennas.
>>> >> >
>>> >> > Yes, it certainly would. But DXEngineering PAID an engineer to
>>> >> > design that antenna, and they deserve to sell that product to
>>> >> > recover their costs. It's what's called free enterprise.
>>> >> >
>>> >> > 73,
>>> >> >
>>> >> > Jim Brown K9YC
>>> >> >
>>> >> >
>>> >> > _______________________________________________
>>> >> >
>>> >> >
>>> >> >
>>> >> > _______________________________________________
>>> >> > TowerTalk mailing list
>>> >> > TowerTalk@contesting.com
>>> >> > http://lists.contesting.com/mailman/listinfo/towertalk
>>> >> > _______________________________________________
>>> >> >
>>> >> >
>>> >> >
>>> >> > _______________________________________________
>>> >> > TowerTalk mailing list
>>> >> > TowerTalk@contesting.com
>>> >> > http://lists.contesting.com/mailman/listinfo/towertalk
>>> >> >
>>> >>
>>> >>
>>> >>
>>> >> _______________________________________________
>>> >>
>>> >>
>>> >>
>>> >> _______________________________________________
>>> >> TowerTalk mailing list
>>> >> TowerTalk@contesting.com
>>> >> http://lists.contesting.com/mailman/listinfo/towertalk
>>> >>
>>> >
>>> >I have two of the DX Engineering 65-foot vertical kits...one on 80-meters
>>> >and one tee-loaded for 160. They both have 1/4-wave radials...40 on 80 and
>>> >39 (at present) on 160. Both are mounted on 8-foot 4x4's set in concrete
>>> >and
>>> >pivot on long bolts. The performance of both is excellent with my first EU
>>> >on 160 with this antenna...something I never was able to do with my
>>> >inverted-L.
>>> >
>>> >The bottom sections are 5-6-inch overlap with diminishing overlap as you go
>>> >up. I have the both antennas guyed with Dacron line at 3 levels, as
>>> >recommended by DX Engineering, plus I have two extra guys at right angles
>>> >to
>>> >the tee-wires on the 160 antenna. I have experienced 65-70MPH (minimum)
>>> >winds with no detrimental effects at all. Basically, I'm pretty happy with
>>> >the verticals and have no qualms about the construction technique.
>>> >
>>> >--
>>> >Jack, W6NF
>>> >Silver Springs, NV
>>> >DM09ji
>>> >
>>> >Migrating my e-mail to vhfplus@gmail.com. Please update you address book.
>>> >Thanks!
>>> >_______________________________________________
>>> >
>>> >
>>> >
>>> >_______________________________________________
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>>> >TowerTalk@contesting.com
>>> >http://lists.contesting.com/mailman/listinfo/towertalk
>>>
>>>_______________________________________________
>>>
>>>
>>>
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>>_______________________________________________
>>
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