Re: [TowerTalk] New? Cable

[Larry McDavid <lmcdavid@lmceng.com>]

I wondered, too! I doubt this is authentic Times Microwave LMR400.

Note, too, that this is not identified as LMR400UF, so it probably has a 
solid center conductor. So, if you want to use it across a rotor, you 
better have a BIG loop. I use TM LMR400UF with a stranded center 
conductor across a rotor and it works fine.

LMR400 or LMR400UF are fine cables and are easy to use with soldered 
connectors.

W6FUB

Jim Lux wrote:
> Is this actual LMR400 (from Times Microwave, http://www.timesmicrowave.com/)
> or some knockoff?  It's hard to tell, but it's kind of telling that they say
> "meets LMR400 specifications"...
>
> One might wonder if they'll guarantee the performance?
> One might wonder if it's being produced off-shore in a country without
> intellectual property protection, and so, taking advantage of Times
> Microwave's hard work without paying for it.
>
> One might wonder if the cable just closely resembles real LMR400.  There IS
> a difference between various formulations and molding technique for the
> dielectric and jacket, most of which are not obvious to casual inspection or
> test equipment, and would only be obvious after a year in the environment,
> when, perhaps, the jacket starts to degrade, or the dielectric changes
> characteristics.
>
> I note the spool isn't marked.
>
> In any case LMR400 has been around for years. It's very low loss compared to
> the RG-8, RG-213 types, particularly at higher frequencies where dielectric
> losses start to be important. It's kind of stiff though.
>
>
> This all said, the stuff might well be just fine and last forever.
>
> ----- Original Message -----
> From: "Gene Bigham" <jbigham2@kc.rr.com>
> To: <towertalk@contesting.com>
> Sent: Sunday, December 21, 2003 4:28 AM
> Subject: [TowerTalk] New? Cable
>
>
> http://www.jefatech.com/category/lmr400_bulk_cable.lmr400
>
> Anybody heard of this stuff or experience with it?
> Thanks
> Gene Bigham
> _______________________________________________
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--
Best wishes,

Larry McDavid W6FUB
Anaheim, CA  (20 miles southeast of Los Angeles, near Disneyland)


_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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