[GreenKeys] [QCWA] Slightly off topic, antenna sharing.

[WA5CAB at cs.com]

Tony,

The generic name for the equipment is "Receiving Antenna Multicoupler".  
Commonly used where the number of receivers that need to be operated exceed 
the number of antennas available.  Like on smaller combatants and intelligence 
gathering vessels.  Each receiver would normally be on a different 
frequency and listening to a different station.  The Navy ones I'm familiar with 
were typically 8-channels (receivers) per unit.

There were also equivalent units for use with transmitters but as I recall 
they had pretty stringent channel separation requirements, which the 
receiving units generally didn't. 

In a message dated 03/25/2013 23:41:53 PM Central Daylight Time, 
tony.podrasky at gmail.com writes: 
> GN OMs;
> 
> Well - two things:
> 
> o I question the "reasoning" behind having multiple receivers monitoring 
> the same frequency.
> 
> o If we're talking diversity reception, it is more important to have 
> different antenni/orientation than multiple receivers (I have a receiver 
> that has 2 independant "receivers" in it - so the antenna is the 
> important thing).
> 
> UE
> W6ESE - tony
> NNNN
> ZCZC
> 
> 
> On 03/25/2013 01:42 PM, Jeffrey D Angus wrote:
> >
> >There was an article in QST a few years back for an antenna
> >distribution amplifier for sharing one antenna with multiple
> >receivers. Unfortunately, the IC used is no longer available.
> 
> -- 
> Tony J. Podrasky | Great truths about life that little children have 
> learned:

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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