[Antennaware] Antennaware Digest, Vol 120, Issue 2

[Everettsharp]

You should always use a cmc choke between your analyzer and antenna. 

Everett N4CY

Sent from my iPhone

> On May 4, 2019, at 11:00 AM, antennaware-request at contesting.com wrote:
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> Today's Topics:
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>   1. 60 meter inverted l fcp.... common mode current at antenna
>      feed point...?? (Franco Rosso)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 3 May 2019 20:26:43 +0200
> From: Franco Rosso <fraross599 at gmail.com>
> To: antennaware at contesting.com
> Subject: [Antennaware] 60 meter inverted l fcp.... common mode current
>    at antenna feed point...??
> Message-ID:
>    <CAAQJ15qfdFEJHtqn=dN1NofsqpLYfVvKTh0wEEPY0PxKi_AhBA at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> hello all.
> this afternoon i connected my mfj259b directely at the base/feed point of
> my 60 meter fcp inverted L but i could not take measurements because the
> mfj as gone totally unstable.
> The instability is completely gone only by reconnecting my home made 1:1
> common mode  coke style w2du ferrite bead coke between the analyzer and the
> antenna base/feedpoint.....maybe my antenna+fcp setup is reactive at my
> target frequency...and due to the reactance my antenna+fcp is  a bit
> unbalanced..?
> 73's franco it9ahh.
> 
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> End of Antennaware Digest, Vol 120, Issue 2
> *******************************************