All,
I abandoned PL259's, SO239's, etc years ago. I found many coax switches,
couplers, were made with N connectors at prices that I could not pass up on
surplus markets. They are truly 50 ohm, water proof, and are everywhere.
I also use HN connectors which are capable of higher power.
UHF connectors are not water proof and are designed for 35 ohms...and are
terrible to solder with. As far as DIN's are concerned, I don't want to go
there now. I am happy with N's.
My 2 centavos
73 Hardy N7RT/4
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
john@kk9a.com
Sent: Tuesday, September 06, 2016 3:23 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] LMR600 male DIN
It was an interesting tower discussion. When I moved 11 years ago and
completely rebuilt my station I would have used DIN connectors if I had
known about them. My main runs are mostly 1 1/4 and 1 5/8 Heliax with N
connectors. I have no immediate plans to change out my N connectors but
maybe someday if I have nothing to do. I did learn a few things about
availability of braided coax DIN connectors from this discussion.
The 7/8 Cellflex sounds like a pretty good deal, to save money you could use
1/2" on 80m and 160m.
GL with your installation!
John KK9A
To: towertalk@contesting.com
Subject: Re: [TowerTalk] LMR600 male DIN
From: Bob K6UJ <k6uj@pacbell.net>
Date: Tue, 6 Sep 2016 10:27:08 -0700
John,
Point well taken and I appreciate your input. This is uncharted waters for
me going beyond RG8 and PL-259's, hihi.
I did what probably most of you have done and made an excel spreadsheet
showing all the feedlines, RG, LMR, Heliax, Cellflex, etc. in different
sizes and the loss for 100 ft for all the bands from 80 to 10 meters.
I also added a cost column, which is very illuminating hihi.
As far as connectors go I have decided to go with DIN connectors.
So now to decide on the feedline. Cost wise the 7/8" Cellflex looks very
good and has just about the same loss as LDF5-50, at about half the price.
Bob
K6UJ
On 9/6/16 5:00 AM, john@kk9a.com wrote:
According to the timesmicrowave and commscope websites at 30MHz LMR600 has
0.4dB/100ft loss and LDF4 has 0.357/100ft. They are very close in specs and
price so of the two I would pick the most durable. The real point of my
post was that K6UJ seemed more concerned about the connector than the coax
that is was attached to. Personally I would rather have 300ft of LDF7 with
and N connector than 300ft of LMR600 with a commercial quality DIN.
John KK9A
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|