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Re: [CQ-Contest] Station Re-Build - Coax

To: "'N4ZR'" <n4zr@comcast.net>, "'Wayne Kline'" <w3ea@hotmail.com>, "'charlie carroll'" <k1xx@k1xx.com>, <cq-contest@contesting.com>
Subject: Re: [CQ-Contest] Station Re-Build - Coax
From: "tony.kaz--- via CQ-Contest" <cq-contest@contesting.com>
Reply-to: tony.kaz@verizon.net
Date: Thu, 14 Mar 2019 10:45:12 -0400
List-post: <mailto:cq-contest@contesting.com>
Did some more checking on eBay for RG179.
Besides selling some unmarked cable as "Harbor", there are listings that show 
Harbour Industries horizontal vs vertical printing on the coax. All my Harbour 
that I bought from a supposedly good source shows all the printing vertical. 
You really need to be careful.
There is some RG400 coax labeled Thermax which the big distributors sell. 
73,
N2TK, Tony

-----Original Message-----
From: tony.kaz@verizon.net <tony.kaz@verizon.net> 
Sent: Thursday, March 14, 2019 10:28 AM
To: 'N4ZR' <n4zr@comcast.net>; 'Wayne Kline' <w3ea@hotmail.com>; 'charlie 
carroll' <k1xx@k1xx.com>; 'cq-contest@contesting.com' 
<cq-contest@contesting.com>
Subject: RE: [CQ-Contest] Station Re-Build - Coax

Pete,
Checked some RG142 vs RG400. With a hand squeeze test it is easier to flex the 
RG400. Not scientific but you can feel the difference.

My RG400 is marked "M17/128 RG400 MIL DTL 17 27478 HARBOUR INDUSTRIES".
It is tinned double shielded braid with a stranded tinned center conductor. 
Nothing attracts to a magnet. It is easy to make a 2" coil. But it will spring 
back if you let it go.  

I did buy some RG179 on ebay. There are no markings on it. So somewhat 
concerned. It does seem to check out fine. But?? Will be buying Harbour marked 
coax so less doubt. Some folks on eBay are selling "HARBOR" coax. 😊

73,
N2TK, Tony

-----Original Message-----
From: CQ-Contest <cq-contest-bounces@contesting.com> On Behalf Of N4ZR
Sent: Thursday, March 14, 2019 8:49 AM
To: Wayne Kline <w3ea@hotmail.com>; charlie carroll <k1xx@k1xx.com>; 
cq-contest@contesting.com
Subject: Re: [CQ-Contest] Station Re-Build - Coax

Oops.  I did some more dissecting on the cable, and I'm wrong about the 
shielding. That leaves only the absence of printing - this is advertised as 
Harbour Industries RG-400 - and its stiffness.  This stuff is quite hard to 
bend in even an 8" coil.  Can anyone who has used real RG-400 confirm whether 
it feels supple and flexible to the touch?  I have one jumper in my station 
that looks like the same stuff, but which is very supple.  I bought it at 
Dayton a few years aho, already connectorized. I can believe a 1" minimum bend 
radius with it, but not with the stuff from China.

73, Pete N4ZR
Check out the Reverse Beacon Network
at <http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

On 3/13/2019 9:51 AM, N4ZR wrote:
>
> I just bought 10 feet of RG-400U (supposedly Harbour Industries) 
> through E-bay for $13.  Belatedly, I learned it was coming from China.
> It's now here, but I don't think it is for real - it only has one 
> shield, and is somewhat stiff.  At least the inner conductor isn't 
> magnetic.There's no printing on the cable.
>
> Buyer beware.
>
>
> 73, Pete N4ZR
> Check out the Reverse Beacon Network
> at<http://reversebeacon.net>, now
> spotting RTTY activity worldwide.
> For spots, please use your favorite
> "retail" DX cluster.
> On 3/12/2019 11:35 PM, Wayne Kline wrote:
>> I third  the sugjestion of the RG400   small enough for  all the switching   
>> in a more then one radio setup.
>>
>> The  tight bend radius the  small diameter make for a clean instlation that 
>> coupled with the double shielding   it’s a WIN WIN
>>
>> Watch  Ebay or other surplus suppliers
>>
>>
>>
>> Wayne W3EA
>>
>>
>>
>> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986>  for 
>> Windows 10
>>
>>
>>
>> ________________________________
>> From: CQ-Contest<cq-contest-bounces@contesting.com>  on behalf of 
>> charlie carroll<k1xx@k1xx.com>
>> Sent: Tuesday, March 12, 2019 10:23:06 PM 
>> To:cq-contest@contesting.com
>> Subject: Re: [CQ-Contest] Station Re-Build - Coax
>>
>> Keith:
>> A couple very similar candidate cables are RG-400 and RG-303. RG-400 
>> is double shielded while 303 is single.  They're good as 
>> interconnects because they have a small bend radius (about 1").
>> RG-400 uses multi-strands of copper for the center conductor; RG-300 
>> uses copper clad steel.  Either will handle 1500 watts at HF.
>>
>> 73 charlie, k1xx
>>
>> On 3/12/2019 7:51 PM, Keith Dutson wrote:
>>> My multi-two station, with third spotting station, is being rebuilt 
>>> into new digs.  I have a lot of 3-4 foot RG213 cables running 
>>> between the amp, power meter, tuner and switch.  I have heard there 
>>> may be a smaller cable that has very little loss, but handles 1500 
>>> watts.  I would appreciate any comments on what is being used today.  
>>> Thanks.
>>>
>>> 73, Keith NM5G
>>> _______________________________________________
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>>> http://lists.contesting.com/mailman/listinfo/cq-contest
>>>
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