I have run 1KW into RG58 with near 1:1 SWR on 40M/80m.
The cable did warm up afew degree's but it never failed.
However, on 15M to the same 40m antenna the foam dielectric flowed
essentially melting the cable.
RG6 will have slightly lower loss, but depending the dielectric YMMV I would
expect it to melt too.
Mike K9MK
-----Original Message-----
From: TowerTalk [mailto:[email protected]] On Behalf Of Ed
Sawyer
Sent: Saturday, January 06, 2018 11:11 AM
To: [email protected]
Subject: Re: [TowerTalk] 75 ohm cable power handling ?
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
----------------------------------------------------------------------
Message: 1
Date: Sat, 6 Jan 2018 16:41:41 +0700
From: Martin Sole <[email protected]>
To: [email protected]
Subject: [TowerTalk] 75 ohm cable power handling ?
Message-ID: <[email protected]>
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
_______________________________________________
_______________________________________________
TowerTalk mailing list
[email protected]
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
[email protected]
http://lists.contesting.com/mailman/listinfo/towertalk
|