[Elecraft] The use of a doublet

[David Cutter]

I thought the wire gauge was of little importance with parallel feeder, 
since the energy flow is between the wires not in them.  The insulation is 
of more importance.  You might want something stronger for mechanical 
reasons.

I used that pink tv twin many years ago and learnt that the terminations 
need to be well sealed to prevent water ingress.  It is lightweight and thus 
adds little to drag the feedpoint down (catenary), however, I had to take a 
lot of care at the joints to relieve wind stress which otherwise causes 
breakages.

David
G3UNA

Subject: Re: [Elecraft] The use of a doublet


> I've used the less expensive flat 300 ohm TV twinlead at the legal limit
> (unknown velocity factor, unknown quality, etc) and it worked very well
> .... and never melted any of it!
> But .... if you're willing to pay for the "bigger & better" feedline, I
> am very sure that although it will work much the same, it will look
> incredibly better!   And WorldRadio will publish the pictures to prove it.
>
> 73    Hank    K8DD
>
>
>
> Phil LaMarche wrote:
>> The ladder line I purchased from DX Engineering is rated at full legal 
>> limit
>> and 18 gage conductors with 19 strands of copper clad steel wire, 
>> resulting
>> in a velocity factor of .88. Should it be larger?
>>
>> Phil
>>