[RFI] Old wives tail, or true?

[Dave Cole]

Thanks Jim!!

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 4/7/21 10:36 PM, Jim Brown wrote:
> On 4/7/2021 7:38 PM, Dave Cole wrote:
>> Is this true, and if so, why?
> 
> No. With the shield disconnected, the antenna is different -- if there's 
> an effective choke at the top, it's now a long wire ending at the choke, 
> because the shield and the center are capacity-coupled together. And if 
> there's no choke at the top, it's a top-loaded long wire.
> 
> 73, Jim K9YC
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