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Re: [TowerTalk] LMR-240 Ultraflex

To: <towertalk@contesting.com>,<john.brewer@us.schneider-electric.com>
Subject: Re: [TowerTalk] LMR-240 Ultraflex
From: "Jim Lux" <jimlux@earthlink.net>
Date: Mon, 21 Feb 2005 14:45:34 -0800
List-post: <mailto:towertalk@contesting.com>
Power handling is current and voltage...
Current is limited by the thermal dissipation in the  inner conductor (and
the thermal resistance to the outside...)
Voltage is limited by dielectric breakdown (which is much worse in foam,
because of the nonhomogeneous dielectric)

Looks like Times rates it at 5.6kW.. presumably with a matched load.
Worst case mismatch is 6dB increase in power (twice current and/or twice
voltage), so perhaps 1.4 kW.

Here's the datasheet: http://www.timesmicrowave.com/telecom/pdf/16-19.pdf

have at it..

----- Original Message -----
From: <john.brewer@us.schneider-electric.com>
To: <towertalk@contesting.com>
Sent: Monday, February 21, 2005 5:39 AM
Subject: [TowerTalk] LMR-240 Ultraflex


> I'm noting the power carrying capability and wondering if anyone's had any
> experience with this coax ( LMR240 ultraflex).
>
> Seems like it would be ideal for high power patch cables, since it's much
> more easily bent than larger (RG8/213) cable.
>
> I need to replace a 150 foot run, as well, and this cable seems attractive
> both from a price/spec standpoint.
>
> Are there any gotchas in its use?
>
> John K5MO
>
> _______________________________________________
>
> 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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_______________________________________________

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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