Oops, I meant dangle the coax below the boom.
Chris
On May 14, 2013, at 2:58 PM, Chris wrote:
> Okay so how do you route the coax back to the mast from the driven element
> then? Dangle the coax below the mast? Add another choke at the mast? But
> wait! The mast is metal too! Just how much of a problem is this stray C,
> anyway?
>
> Chris
> KF7P
>
>
>
>
>
>
> On May 14, 2013, at 2:50 PM, Tom H Childers wrote:
>
>>
>>
>> One reason those folks, which has included me have done that, is
>> because most loaded Yagi-Uda antennas sold by CushCraft and others
>> recommend doing just that in the assembly instructions!
>>
>>
>>
>>
>> On Tue, 14 May 2013 20:28:54 +0100, "Ian White"
>> <gm3sek@ifwtech.co.uk> wrote:
>>
>> [snip]
>>>> How many times have you seen a coiled-coax choke taped
>>>> to a boom - think about that in terms of a high-Q parallel tuned circuit!
>>>>
>>> Not only that, but taping the choke to the boom is adding extra capacitance
>>> between one side of the driven element and the boom. In other words, taping
>>> the "choke balun" directly to the boom is making the antenna more
>>> UNbalanced! It's amazing to watch people doing this...
>>>
>>>
>>> 73 from Ian GM3SEK
>> [snip]
>> 73,
>> Tom
>> Amateur Radio Operator N5GE
>> ARRL Lifetime Member
>> QCWA Lifetime Member
>>
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