Date: Thu, 1 Sep 2016 21:33:37 -0700
From: Jim Brown <jim@audiosystemsgroup.com>
To: towertalk@contesting.com
Subject: Re: [TowerTalk] DIN to coax connector?
On Thu,9/1/2016 3:36 PM, Steve Maki wrote:
> I've been gradually converting to all DINs everywhere that it's
> reasonable.
Why? Are all your systems at UHF?
73, Jim K9YC
## 7-16 dins are the bomb. Andrew stopped making UHF connectors for
7/8 inch heliax years ago. No way in hell would I invest in an N connector for
the larger coax cables. We used type N on several cell sites at the telco I
worked
at. Coffee mug sized connector..with this tiny puny pin, that is identical to a
BNC
pin.... on the end of a piece of 1.250 inch heliax. The new standard is 7-16
dins,
which at the time, were barely any more $ than a type N connector.
## 7-16 dins have a massive center pin, yet the chassis connector flange is
only
1.25 inch x 1.25 inch, barely any bigger than the 1 x 1 inch flange on a UHF
female
chassis connector.
## Type N is good till aprx 12 ghz. 7-16 dins are good to 6-7 ghz.... moot
point.
## On the 7/8 inch and up cables, whether heliax or stuff like LMR-1200DB,
they only offer
2 types of connectors, type N..and 7-16 DIN...pick one. No brainer, use the
Din.
## I use 7-16 Dins on RG-393. Dins will handle a lot of peak V. UHF
connectors like
PL-259 etc, are used in the shack only, and interconnections, etc. Once it
heads off outside,its
dins only. BNC is for 2m hand helds...and type N is obsolete IMO. Commercial
world doesnt
use type N anymore.
Jim VE7RF
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