[SMCARA] Cable

[jpsmith]

RG217 is ok, not very common. LMR400 is good stuff...600 is better and is still fairly manageble. LDF50 is heavy duty commercial grade. I think it is way to expensive and the large diameter with solid copper outer shield is hard to bend and route. It will take big power.  9913 has a tendency to accumulate condensation(it uses a helical spacer and an air core dialectric insulator). That can cause arcing and overall poor perfmance.  Also kind of stiff to work with.  I do use it though. So, for now, i'm in love with LMR600. Still not cheap. Opinions vary; this is mine. But remember; it's not just a ticket to get on the air, it's a ticket to spend money.  Have a safe and wonderful Thanksgiving. Jim (N3NV)


Sent from my Samsung Galaxy S3 4G LTE via Verizon Wireless.

-------- Original message --------
From: "Clarke, Tom   AIR4.0P NATOPS" <frederic.clarke at navy.mil> 
Date: 11/26/2013  9:29 AM  (GMT-05:00) 
To: SMCARA at mailman.qth.net 
Subject: Re: [SMCARA] Cable 
 
Wow!  I saw that stuff on EBay and they wanted $1500 for a 100 foot roll
with UHF connectors! Must be made of gold! 

This is high power and low loss coax similar to LMR-400 or Belden 9913,
but bigger( .545" O.D. vice .405" for 213/400/9913) and heavier. Center
conductor is #10 wire and insulation is rated for 7000 volts (most
RG-213 type is 5KV). Be good on high power VHF/UHF.

Loss (db per 100 feet at 200MHz)

RG-174 (tiny stuff)	12.0
RG-58C	 7.4
RG-8X (8 Mini)	 5.4
RG-213	 2.7
RG-217	 2.0
LMR-400/9913	 1.8
LFD-50 Hardline	 0.98

Now you can see why hardline is the feedline of choice 
for repeaters and serious VHF/UHF stations, such as EME, etc.

Tom/W4OKW 

------------------Original Message---------------------------
From: smcara-bounces at mailman.qth.net
[mailto:smcara-bounces at mailman.qth.net] On Behalf Of Larry Norris
Sent: Monday, November 25, 2013 4:30 PM
To: SMCARA at mailman.qth.net
Subject: [SMCARA] Cable

I have 80 feet RG-217 Cable 2 N- Male Connectors very low loss cable
$95.00
Larry Norris 
N3JTN  Ham 
Leonardtown,Md
You can't have too many radios....

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