Topband: standoff for inv L

[Grant Saviers]

I've been using 8' 1.5" dia painted fiberglass top and bottom of my 85ft 
T as standoffs from a fir tree.  An 18" long bracket is lagged to the 
tree both places to make it stable and lower the FG stress.  OK after 6 
years, occasional ice and snow.

PVC gets very flabby at 80F and higher and isn't anywhere near as strong.

Grant KZ1W

On 12/27/2020 07:20, Mike Smith VE9AA wrote:
> VE9AA:
> 
> I don't have a tower supported Inverted L, but I have a slightly different
> way of supporting the center of a 20m 4-square array of inverted L's and
> wanted something non conductive so I use 1.5" grey electrical PVC conduit
> and it's stood up many years in a harsh environment with wild temperature
> swings and all winter can throw at it, but the UV up here is on the lower
> end of the scale.
> 
> Because PVC can get floppy in the heat or with lots of ice buildup, support
> it from above (from the far end, back to the tower, some distance above the
> PVC arm) with rope. (think triangulation)
> 
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> 
> If you are located where UV may be an issue, tape it like Jim has said.
> 
> ===================================================
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> WW3S:
> 
> I lost my fiberglass pole that I use for a standoff for my inv L off my 50'
> tower.....second or third time in 12 years or so, victim of the recent
> ice/snow storm we just had.....I've been using fiberglass to isolate it from
> the tower.....but the wire for the antenna goes thru an insulator attached
> to a rope thru a pulley off the fiberglass arm.....should I continue to go
> with fiberglass, or would metal be ok, since I have the rope and other
> insulator there.... _________________
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> Mike VE9AA
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> Mike, Coreen & Corey
> 
> Keswick Ridge, NB
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