Topband: RIG PROTECTION FROM BEVERAGES

[John K9UWA]

> 
> On 2013-01-15, at 4:25 PM, Wayne Willenberg wrote:
> 
> > I have my 2 reversible Beverages receive antenna input on my FT-5000.  If
> > high voltage should get induced by lightning, isn't it going to fry at least
> > the front end of my receiver?
> > 
> > How you you provided for this possibility?

For lightning protection I use Polyphaser Devices on all Coax entering the 
house including lines from Beverage antennas. 

You also have another situation to think about. That is killing the front end of 
your receiver with your own transmit signal. Unless in your W8JI setup is 
also included some fast relays to disconnect and ground the RCV only input 
during transmit cycle. If you need one take a look at the KD9SV Products for 
Front End savers several also incorporate Preamps and switching for 
various Rcv antennas. Within the front end saver device is also arrangement 
whereby if the Relay that removes and grounds the RCV antenna doesn't 
work for some reason it won't allow you to key your Amplifier.

John k9uwa
John Goller, K9UWA & Jean Goller, N9PXF 
Antique Radio Restorations
k9uwa at arrl.net
Visit our Web Site at:
http://www.JohnJeanAntiqueRadio.com
4836 Ranch Road
Leo, IN 46765
USA
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