[TowerTalk] Long Term Connector Reliability

john at kk9a.com john at kk9a.com
Mon Jul 25 16:29:40 EDT 2022


Meant to type M20 is ~Ø25/32"

-----Original Message-----
From: john at kk9a.com [mailto:john at kk9a.com] 
Sent: Monday, July 25, 2022 4:15 PM
To: 'towertalk at contesting.com'
Subject: re: [TowerTalk] Long Term Connector Reliability 

The 4.3-10 mini-DIN connector that KG2V referred to is not much larger than
a PL-259/SO-259.  It has a M20 (~Ø7/8) thread and a SO-239 has a Ø5/8
thread.  I considered using them and even purchased a few but never used
them. 

John KK9A



Jim K9YC wrote:

On 7/25/2022 11:26 AM, Charles Gallo (KG2V) wrote:
> I'd say the way to actually go, if we are going to push for a change is 
> probably 4.3/10 DIN connectors - go where the RF industry has gone for 
> 1/2 foam coax 

Who wants to push for a change?  Those DINs are BIG so burn lots of 
panel real estate, and expensive. Their broad use is in commercial 
systems that run at high UHF. At 2M and below, I could care less. I'm an 
ENGINEER who understands transmission lines, not a lab rat who doesn't.

73, Jim K9YC



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