I have used LRM400 equivalent from Shireen and from L-com. The only tests I
made were using an MFJ antenna analyzer to calculate the loss. Both vendors
cable met the published specs of LMR400 within the frequency limits of the
analyzer (MFJ 266C). It has been in use since 2009 and the coax exposed to
weather (tower runs) has visibly held up well with no signs of the poly
covering aging. The runs still measure as when first placed in operation.
I will say that the Shireen cable was from a "special" batch that had a full
copper center conductor instead of the copper clad aluminum of the L-com. I
used the Shireen for HF and low VHF and the L-com for VHF/UHF. I did not
use it for the rotor loop where I used RG-214 I had on hand. It has an
outer covering of clear FTPE over the usual beige covering - very unusual
and tough stuff.
Perry K4PWO
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Ed
Sawyer
Sent: Thursday, September 01, 2016 3:39 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Coax Sources
Wilson Lamb (call unknown) stated "I have been ordering 400 equiv from
Shireen. Half the cost, or less. I get it for club members and no complaints
so far, after several Kft. They are pleasant and ship immediately."
Do any of your club members measure loss in the coax? They might be happy
with RG-58 as well, but it doesn't make the Shireen LMR400 a good value
based on "no complaints so far".
I have also seen the very attractive prices of Shireen. Has anyone who
cares about losses and stability over 5+ years bought any that would care to
comment?
Ed N1UR
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