Topband: Single antenna port xcvr but want to employseparate receive antenna

[Doug Scribner]

Jim,

I did the same thing years ago. I modified an old B & W antenna switch, 
added a 12 volt relay triggered from the amp out jack.

Even without the switch, 3 panel mount SO-239s, a relay and an enclosure 
would be a minimal investment.

Doug - K1ZO

----- Original Message ----- 
From: "Shoppa, Tim" <tshoppa at wmata.com>
To: "James Rodenkirch" <rodenkirch_llc at msn.com>; "Top Band Contesting" 
<topband at contesting.com>
Sent: Monday, January 13, 2014 8:48 AM
Subject: Re: Topband: Single antenna port xcvr but want to employseparate 
receive antenna


> Traditionally a "T/R switch" means a switch to be used the other way, to 
> allow you to move a single antenna between your separate transmitter and 
> receiver. Ironic that here we are in the 21st century and some of use an 
> external box to do the reverse function!
>
> To switch between transmit and receive antennas on my rig, I use a small 
> 12V relay keyed via my Ten-Tec Eagle's "amp key" output when I'm on 160.
>
> Every transceiver made in the past 50 years has an amp key line of some 
> kind. On the Jupiter it's a phono jack labeled "EXT T/R".
>
> Tim N3QE
>
> -----Original Message-----
> From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of James 
> Rodenkirch
> Sent: Monday, January 13, 2014 8:36 AM
> To: Top Band Contesting
> Subject: Topband: Single antenna port xcvr but want to employ separate 
> receive antenna
>
> Have my vertical working great and have a small Delta-loop low band 
> receive antenna BUT the Ten Tec Jupiter doesn't have a separate receive 
> antenna like a K2, for instance (I borrowed a K2 to try out but the 
> buttons/controls are to small for me to operate as I have a severe case of 
> peripheral neuropathy, courtesy of Agent Orange).So, I am up and running 
> and will be in the CQ 160 contest at the end of January but have no means, 
> currently, of switching rapidly 'tween the top loaded vertical and loop. A 
> T/R switch won't "do it" for me....so looking at a DX Engineering RTR-1A 
> but sure don't like the 
> price!!http://www.dxengineering.com/parts/dxe-rtr-1a
> Anyone have an RTR-1 or 1A that is excess to their needs and willing to 
> sell OR have another idea of how I can employ a separate receive antenna 
> when I have one antenna port?
> Thank you, in advance, for any replies....off line replies work for me.
> 72/73, Jim Rodenkirch K9JWV
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