[TenTec] [Ten-Tec-Omni-VII] Omni 7 receive antenna split

[GARY HUBER]

Cecil, I have the same mod and also a FLEX-1500 in my OMNI-VII. A drop of 3 db in signal strength (assuming approximately the same impedance load each side of the split) in each receiver is to be expected. Given the sensitivity of both the FLEX-1500 and OMNI-VII, I doubt a buffer amp will do much of anything beyond providing the psychological satisfaction of raising S-meter readings one half S unit. 

For those interested in the N4PY sub-rx mod for the OMNI-VII  see: http://tentecwiki.org/doku.php?id=588secondrx  and for how I used it with DDUTIL and CW Skimmer, see: http://www.dxlabsuite.com/dxlabwiki/DDUtilPowerSDRN1MMSkimmerCommander  

73 ES DX,
Gary -- AB9M

From: w4cm at cox.net 
Sent: Tuesday, February 05, 2013 9:31 AM
To: TenTec at yahoogroups.com ; Ten-Tec-Omni-VII at yahoogroups.com 
Subject: [Ten-Tec-Omni-VII] Omni 7 receive antenna split

  
I am using the Flex 1500 as a panadapter with my Omni 7 and utilizing the N4PY software.
I made the internal receive antenna split as described in the directions in the N4PY software to split the receive antenna for the Omni and bring optional receive outputs to the spare jacks on the rear of the Omni. (jumpers supplied by Ten Tec, THANKS !!)

Issue is now the Omni has an additional load not buffered on the antenna dropping signal to the Omni. I have been told there may be a buffer amp that can be purchased to modify the new split of the antenna and return normal operation to the Omni and the 1500.

Any input please?

Thanks,

Cecil
W4CM


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