Tnx everyone for all the input on coax for jumpers. Some great ideas and info.
I bought 100’ of Harbour Industries RG400. I didn’t want to take a chance on
imported cable. Also bought crimp PL-259’s. I should be set.
73,
N2TK, Tony
From: N2TK, Tony [mailto:tony.kaz@verizon.net]
Sent: Friday, March 16, 2018 2:47 PM
To: 'Gedas' <w8bya@mchsi.com>; 'towertalk@contesting.com'
<towertalk@contesting.com>
Subject: RE: [TowerTalk] Skinny QRO coax jumpers for station interconnection
Tnx Gedas. Yeah, want to make sure it is the good stuff I get.
N2TK, Tony
From: Gedas [mailto:w8bya@mchsi.com]
Sent: Friday, March 16, 2018 2:29 PM
To: N2TK, Tony <tony.kaz@verizon.net <mailto:tony.kaz@verizon.net> >;
towertalk@contesting.com <mailto:towertalk@contesting.com>
Subject: Re: [TowerTalk] Skinny QRO coax jumpers for station interconnection
Hi Tony. Harbour Industries is a HUGE leader in the world of high-temp, quality
Teflon cables and wires etc. They are the ones who make my RG-142. I personally
would stay away from buying cables and assemblies from Asia unless you knew
exactly who you were dealing with and had some assurance of the quality cables
you would be getting from them. Several people here have suggested a couple
real good USA sources and I would look into them if I were you. I just make my
own here but that is because I have plenty of cable around.
Gedas, W8BYA
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 3/16/2018 2:20 PM, N2TK, Tony wrote:
Gedas,
Tnx for the info.
Looking on eBay I see several listings for RG400 from China. I had heard
Harbour Industries in VT makes a high quality cable. Not sure about the stiff
from China.,
N2TK, Tony
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Gedas
Sent: Friday, March 16, 2018 2:13 PM
To: towertalk@contesting.com <mailto:towertalk@contesting.com>
Subject: Re: [TowerTalk] Skinny QRO coax jumpers for station interconnection
RG-303 is a good cable but not as good as RG-400 or RG-142 because it uses only
a single shield. Also, I would still use RG-400 over RG-213 because it meets
his desire for a small O.D. cable and because he is using it for switching
filters etc where the higher shielding effectiveness of the RG-400 is desirable
and will offer better immunity to cross talk etc.
Plus, with a Teflon based coax you never have to worry about the center
conductor migrating from center, even under QRO and extreme heat and tight
bends. I was biased when I posted using RG-142 because I was lucky enough to
find a 1000' roll of it and have been using it for jumpers for years & years.
But RG-400 is more flexible and of the same high quality as 142.
It used to be that RG-213 meant an upgraded quality version of a cable like
RG-8 (solid dielectric & VF = 0.66) but with two copper braids vs.
one. RG-214 was the same as RG-213 but used a silver coated copper center
conductor and dual silver coated copper braids for even higher performance and
better S.E. For MIL applications we used lots of RG-223, RG-142, RG-400,
RG-214, and of course tons of semi-rigid. I was very, very lucky when I was
able to purchase five left-over 1000' rolls of new RG-214 for, you don't want
to know, and have enjoyed giving most of it away to friends & family.
Gedas, W8BYA
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 3/16/2018 1:33 PM, Rob Atkinson wrote:
I see no mention of RG 303 and wonder if that's been discontinued.
for jumpers I'd use 213. If you need a tighter bend radius I'd
re-arrange or re-locate the connection points instead of using skinny
silver coax.
Rob
K5UJ
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