Date: Mon, 5 Sep 2016 01:52:24 -0000
From: <john@kk9a.com>
To: <towertalk@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
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