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Re: [TowerTalk] 75 ohm cable power handling ?

To: towertalk@contesting.com
Subject: Re: [TowerTalk] 75 ohm cable power handling ?
From: Martin Sole <hs0zed@gmail.com>
Date: Sun, 7 Jan 2018 17:40:36 +0700
List-post: <mailto:towertalk@contesting.com>
Thanks for all the inputs, much appreciated.

Maximum run length for the 75 ohm cable would be 1/4 wavelength on 28MHz. For other bands just a couple of feet as a series section transformer in each case.

Martin, HS0ZED



On 07/01/2018 00:11, Ed Sawyer wrote:
Martin, Its really first about expected loss for 30 Mhz - isn't it?  Why put
1KW into a cable that has loss of 1.8dB per 100 ft?  How long a run are you
planning?

Ed  N1UR


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Message: 1
Date: Sat, 6 Jan 2018 16:41:41 +0700
From: Martin Sole <hs0zed@gmail.com>
To: towertalk@contesting.com
Subject: [TowerTalk] 75 ohm cable power handling ?
Message-ID: <cabcbb10-fc8a-e121-6653-0a38a02d2314@gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed

Definitely not feeling the Google love today!

Anyone have an idea of the 30MHz power handling capability for RG6A/U and
Belden 9104?

I have some RG59A/U as well but having seen RG58 melt I'm not inclined to
try it at 1kW.


Thanks

Martin, HS0ZED


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