[Elecraft] RX antenna protection

[a45wg]

John,
	Very sound advice.

	I am using a Alpha Delta T33g50 that I picked up at HRO Denver, Co; The Red Pittaya antenna (Cobwebb) is 15 feet below the TH-7 which is emitting aprox 500W. 

	It has survived for 12 months so far, which has amazed me.
	
	Regards

		Tim, A45WG



> On Aug 15, 2017, at 10:06 PM, John K9UWA <john at johnjeanantiqueradio.com> wrote:
> 
> We have been operating this way with full break-in for many years using the 
> KD9SV products. First it was just the "Front End Saver" which removes and 
> grounds the incoming rcv antenna from your radio during transmit. As a "Fail 
> Safe" the device also prevents the Amplifier from working by removing the 
> PTT line to the amp if by any chance the relays in the KD9SV device fail to 
> operate. Later it is now incorporated into the various RBOG and other 
> Pre-Amp devices that KD9SV sells... through DX-Engineering. 
> 
> Disclaimer Statement: Yes I am a friend of Gary's. Call me a more than 
> happy customer. I complained many years ago after I fried the front end of 
> my IC-765 radios a couple times and Gary started building these devices. 
> They Work and I am happy. No more blown front ends no more blown 
> pre-amps.
> 
> John k9uwa
> 
>> Just a note to say that years ago, I had a B&W Electronic Antenna Switch (I
>> think it was called) that had one or two tubes in it. It worked perfectly to
>> bias the receive completely and immediately as soon as transmit was detected. 
>> It allowed full break-in for CW work.  I would like to see something like this
>> again today in solid state.  I think this would be the ticket for what you need.
>> I havenTMt looked, so I donTMt know if anyone is marketing such a device.
>> 
>> Rich, n0ce
> 
> 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
> 1-260-637-6426
> 
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to a45wg at sy-edm.com