[TowerTalk] Coax

[Hector Garcia XE2K]

Phil
At this moment you receive several answer  to your email related to the DXE 400 
coax, also others good recommendations in price and quality like the JeFa Tech 
coax and the BuryFlex

I like the DXE 400  or the Bury flex for HF  and  the rotor loops / pigtails 
from the antenna to :
Grounding brackets from DXE at the tower top
Antenna switch at top of the tower
Hardline  connector at top of the tower
lightning arrestor  
OR just a Barrel to separate the antenna  when needed to take it down from the 
tower

Several of the above configurations have in use at my station and with  friends 
and clients where I work.
In my stations  ( and my recommendation  to others) is to have the lowest loss 
in the coax from your radio to your antenna
a good advice is to be  around or LESS of 1 Db in coax loss,  is what 
the experts recommend  and really works
(I got this advice from this same list)
 
make a simple test using this  webpage http://vk1od.net/calc/tl/tllc.php 
For 2m SSB  your maximum lenght of cable  under this  parameter  of the 1Db loss 
 is  60-63ft using Bury or DXE 400
yes, YOU CAN USE 200 FT of cable and make a lot of contacts in 2m  but  no 
performance with  3.2 dbs of loss (1/2 power loss and RX)

maybe some recommendations  are  "extreme" for a few  or NO WAY for others, 
because  they have a "GREAT" performance with the 200ft lengh of coax
but they know what they miss ?

If your budget allow it  use the  best cable with the lowest loss  you can get.
LMR 600,  1/2 inch   and 7/8 harlines are  not expensive if you get used or left 
overs 

In my case not a big budget  but a plan of what I need , time and some selection 
can provide an optimum station  with performance
 J.Hector Garcia  XE2K / AD6D
Mexicali B.C  DM22fp /Heber CA 
P.O.Box 73 
El Centro CA 92244-0073
http://xe2k.net







________________________________
From:Phil Snyder <n9lah at comcast.net>
To:towertalk at contesting.com
Sent: Sat, February 23, 2013 8:48:42 AM
Subject: Re: [TowerTalk] Coax

I guess I should mention the reason for the purchase is initially for my 2 meter 
SSB run but was looking to use it for HF and up to 432 in the future.

Phil
N9LAH

On 2/23/2013 10:13 AM, Phil Snyder wrote:
> I know we have Tribander reports and Vertical antenna reports, but has anyone 
>ever tried to do one on coax? Do the specs and manufacturers change too often 
>for it to be worthwhile? I am looking at purchasing a 500 foot spool of the 
>DXE-400MAX coax from DX Engineering. I have read the specs and compared them on 
>paper to many of the other low loss coaxes and they seem to compare favorably 
>spec for spec. My question is how can they sell it so reasonably. I know they 
>put out good stuff and I have been extremely happy with what I have gotten from 
>them in the past but was always taught if it appears to be too good to be 
>true......
> 
> Phil
> N9LAH
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