[TowerTalk] DIN to coax connector?

[Jim Thomson]

Date: Mon, 5 Sep 2016 01:52:24 -0000
From: <john at kk9a.com>
To: <towertalk at contesting.com>
Subject: Re: [TowerTalk] DIN to coax connector?

I have one Heliax run that uses 7/16 DIN connectors.  I have smaller Heliax
connected on each end. The smaller "jumpers" have a DIN on one end and a
PL-259 on the other. There are DIN connectors available for RG-8 coax so you
can make your own adaptor/jumper however DIN connectors are not available at
your usual ham suppliers. They are not even that easy to find on the
interweb expect for the eBay ones from China and all of the DIN's for RG
coax that I have seen require appear to require a crimping tool for
installation. It is much easier to find N and UHF connectors for RG type
coaxes and the majority of my connectors are soldered N or UHF.  DIN's are
certainly a more robust connector which is mostly used in commercial
applications.

John KK9A

##  RFS brand heliax has been all the rage in asia and europe for several years now,
and a lot cheaper than andrew. RFS was making heliax that used an aluminum outer shield..
and a corrugated copper center conductor, forget the part number.  Now  by using
corrugated copper center conductor  vs  a copper tube, the heliax becomes very flexible,
where as  heliax with the copper tube is rigid as a baseball bat.     There is no difference in measured 
loss between the corrugated copper shield and the  corrugated aluminum shield.   Copper is 2% heavier than
steel, and  aluminum is only 1/3 the weight of steel.  Corrugated aluminum sheathed  heliax  cables are very light in weight,
and if u use the cable with the corrugated copper center conductor, the cable is then very flexible. 

##  Im 98 % sure that  Davis RF had it available, as it was steve davis that put me onto the rfs flex heliax. 
Din cnnectors are not an issue, if u know where to buy them.  Steve had the correct crimping tool for my 393 teflon
coax, and  dozens of new crimp style  dins, as this was the fast way to get the jumpers put together. 

##  u can also apply  5 X  the  torque on a din vs a type N.   All my baluns, and connecvtors on the remote switch boxes, lightning 
arrestors, LP filters, wattmeters, etc, etc..all use dins...even the back of the hb amps.  Only the  xcvr and the small L4B amps use SO-239.   

Jim   VE7RF