[CQ-Contest] Receive path access

[Gilmer, Mike]

K8CC wrote (on another topic):
> You also need to come up with 
> a way to allow both receivers to "hear" when neither transmitter is off 
> line.  At K8CC, we've found this to be not too difficult with certain ICOM
> 
> radios like IC-781s and IC-765s thanks to access to the receive path via 
> rear panel jacks.  With FT-1000Ds, and many other radios which have only 
> aux antenna inputs on the back, an old-fashioned "T/R relay" is needed on 
> the amp input.  The transmit side of this relay goes to the "which rig 
> transmits" relay while the receive side goes to the transceivers' aux 
> antenna inputs.
> 
Interesting.  I've used TS-940s many times with external receive-level
bandpass filters and these Kenwoods (the 930 as well if I remember) provide
connectors on the rear panel that allow access to the receive path.  I would
expect this capability to be missing from "lesser" radios, but not the
FT-1000D.  Perhaps this is another reason to consider transmit-level (200W)
bandpass devices.

Oh, yes, I just noticed last night that years ago I must have cracked the
dang 8-pin non-standard DIN (is that an oxymoron?) jack that Kenwood used to
supply this access.  Anyone have a suggestion regarding replacing this jack
with either a "standard" 8 pin or a copy of the original (where do you get
one) or just leave it alone (it still works...if it ain't broke...)?

73 Mike N2MG


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