[CQ-Contest] 1/4 inch tubing

[Joe]

Forgot this list won't pass images so here's the antenna
https://imgur.com/a/9jej0LU

Joe WB9SBD

On 1/3/2026 9:03 PM, Joe wrote:
> Self supporting full sized elevated 40 meter vertical. tip starts as a 
> 1/8" solid rod,
> Joe WB9SBD
>
>
> On 1/3/2026 8:04 PM, Stan Stockton wrote:
>> Is the need for 1/4” tubing for 40 meter verticals?
>>
>> I cannot imagine making a 40m vertical or any other HF vertical or 
>> half wavelength element that would have anything smaller than 3/8” 
>> tubing at the tip.
>>
>> Stan, K5GO
>>
>> Sent from my iPhone
>>
>>> On Jan 3, 2026, at 8:02 PM, Joe<nss at mwt.net> wrote:
>>>
>>> I wasn't worried about stiffness.
>>> It is the telescoping to the 1/8" rod. the 0.049, it was pretty 
>>> tough to get a good grip to lock the rod in place too much slop.
>>>
>>> Joe WB9SBD
>>>
>>>> On 1/2/2026 11:54 PM, K9MA wrote:
>>>>> On 1/2/2026 7:30 PM, Zack Widup wrote:
>>>>> That's where I have been buying aluminum tubing. They don't have 
>>>>> 0.058"
>>>>> wall thickness in 1/4" diameter tubing, but the closest they have 
>>>>> for that
>>>>> diameter is 0.049", which I suspect will work.
>>>> You don't get a whole lot of extra stiffness by going from a .049 
>>>> to .058 inch wall thickness in tubing this small.
>>>>
>>>> 73,
>>>> Scott K9MA
>>>>
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