[TowerTalk] Johnson matchbox with coax feed line ?

[w5gn at mxg.com]

Mine works great.  I feed my rooftop vertical with the KW Matchbox
because in some parts of some bands the SWR causes Amp drop out.

Long ago, when computer monitors were CRTs, I had my IBM monitor
physically touching the side of the KW Matchbox and we had a
nearby strike that itself did no damage, but apparently the
currents on the surface of the Matchbox interacted with the
CRT which dumped a spike that took out the video driver on
that motherboard, and then use the LAN cables to take out 
three other motherboards and five LAN hubs.


Barry, W5GN


-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Robert Harmon
Sent: Saturday, May 09, 2015 11:37 AM
To: towertalk
Subject: [TowerTalk] Johnson matchbox with coax feed line ?


I know the Johnson matchboxes have limited range, can’t use on the WARC bands for instance, and they are designed primarily for balanced feebleness, but how do they perform using unbalanced coax fed antennas ?
The Johnson KW matchbox has a SO239 on the back for using coax in addition to the balanced feed line connectors on the back.
Anyone use the Johnsons for coax antennas ?  How well does it work ?

thanks,
Bob
K6UJ
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