[TowerTalk] Skinny QRO coax jumpers for station interconnection

[N2TK, Tony]

Tnx Gedas for the info on utube.
N2TK, Tony

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Gedas
Sent: Saturday, March 17, 2018 12:04 PM
To: N2TK, Tony <tony.kaz at verizon.net>; towertalk at contesting.com
Subject: Re: [TowerTalk] Skinny QRO coax jumpers for station interconnection

Great choice Tony, you won't regret it. Just do not skimp on the quality of the connectors. The termination of the shields to the shell is critical as to how well the overall cable provides S.E. & immunity and isolation, etc. If you have a minute check out a video I made on youtube about cheap imported crimp on connectors. Just do a search on my call. I learned my lesson and only buy connectors from people I trust. 73 es GL

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 3/17/2018 8:32 AM, N2TK, Tony wrote:
> 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 at verizon.net]
> Sent: Friday, March 16, 2018 2:47 PM
> To: 'Gedas' <w8bya at mchsi.com>; 'towertalk at contesting.com' 
> <towertalk at 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 at mchsi.com]
> Sent: Friday, March 16, 2018 2:29 PM
> To: N2TK, Tony <tony.kaz at verizon.net <mailto:tony.kaz at verizon.net> >; 
> towertalk at contesting.com <mailto:towertalk at 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 at contesting.com] On Behalf Of 
> Gedas
> Sent: Friday, March 16, 2018 2:13 PM
> To: towertalk at contesting.com <mailto:towertalk at 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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