[Elecraft] loss of RX sensitivity

[hawley, charles j jr]

I've found that wiggling the body of the plug while tightening the threads makes the pl259 quite tight with the pins firmly seated in the notches. The motion allows the pins to find the deepest well of the notch.

Chuck Hawley
 c-hawley at illinois.edu

 Amateur Radio, KE9UW
 aka Jack, BMW Motorcycles
________________________________________
From: elecraft-bounces at mailman.qth.net [elecraft-bounces at mailman.qth.net] on behalf of Jim Brown [jim at audiosystemsgroup.com]
Sent: Monday, September 17, 2018 2:44 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] loss of RX sensitivity

On 9/17/2018 9:20 AM, Drew AF2Z wrote:
> Note that there is no electrical connection through the threads on the
> plug body and the threads on the shell; these threads are merely a
> stop to keep the shell from sliding down the cable when not connected
> to the SO-239 on the equipment.

This is simply not true. The entire PL259 body and shell and the entire
mating body are part of the connection. What IS correct is that 1) the
connectors must be properly installed both to the coax and the
equipment, and 2) that the shell must be well tightened, often described
as "wrench tight," with the pins on the PL259 firmly seated in the
notches in the mating connector. I'm being generic about mating
connectors because it's equally true of SO239 and other connectors like
barrels, elbows, tees, and inter-series adapters.

73, Jim K9YC

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