[Elecraft] P3 Loss of signal

[Charlie T, K3ICH]

When comparing similar size cables or connectors, the one with the smaller 
inner diameter will be the highest impedance.

73, Charlie k3ICH


----- Original Message ----- 
From: "George Danner" <gdanner at windstream.net>
To: <elecraft at mailman.qth.net>
Sent: Wednesday, November 20, 2013 8:34 AM
Subject: Re: [Elecraft] P3 Loss of signal


> Bill,
> Another issue with BNC connectors to take into account is that 50 ohm & 75
> ohm BNC male connectors have a very slightly different diameter on the 
> male
> center pin. The larger one (don't remember which one) can expand the 
> female
> center socket. If you switch to the smaller version male after using the
> larger one, you may get an intermittent connection. You can tighten the
> female with a dental pick.
> We mixed connectors when TV stations switched from UHF to BNC for video. 
> We
> found this issue years later! All BNC males are not the same. I make sure 
> to
> use 50 ohm BNC connectors in the ham station for this reason.
> 73
> George
> AI4VZ
>
> --------------------------------------------------
> From: "Bill W" <bw396ss at yahoo.com>
> Sent: Tuesday, November 19, 2013 9:56 PM
> To: <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] P3 Loss of signal
>
> Hi Don,
> Thanks for the reply. Yes that crossed my mind but the cable I use now was
> suppose to be from the "new" batch. I called and got replacement from
> Elecraft Parts after earlier problem. I think this cable has been in use 
> for
> better than a year or more and nothing has changed. I will switch cables 
> as
> soon as I can find or make a new one. I was just curious if anyone else 
> had
> a similar problem crop up.
> Thanks again,
> Bill - W0BBI
>
>
>
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