[CQ-Contest] 1/4 inch tubing

[Joe]

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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