[Milsurplus] R-442 Antenna Connections

[Francesco Ledda]

space division multiplexing

Sent from my iPad

> On Oct 1, 2016, at 19:52, Gene Smar <ersmar at verizon.net> wrote:
> 
> Gents:
> 
>     Found this:  https://www.youtube.com/watch?v=aUh2jSvvBVM .  The
> engineers were geniuses.
> 
> 
> 73 de
> Gene Smar  AD3F
> 
> 
> 
> -----Original Message-----
> From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of
> Mike Morrow
> Sent: Saturday, October 01, 2016 7:13 PM
> To: B. Smith <smithab11 at comcast.net>; Milsurplus
> <milsurplus at mailman.qth.net>
> Subject: Re: [Milsurplus] R-442 Antenna Connections
> 
> 
>> Why does the R-442 have two antenna connections? Both antenna input 
>> BNC's are connected in parallel. Enquiring minds want to know.
> 
> There are two versions of the AN/VRC-12 that use two R-442A/VRC
> receivers...the AN/VRC-44 (with RT-246A) and the AN/VRC-48 (with RT-524A).
> The receivers were always connected to an auxiliary antenna separate from
> the RT-unit antenna.  Usually there was only one antenna for both receivers
> connected to one receiver directly.  The other receiver was connected to
> that antenna by a short coax cable CG-1127/U running between the remaining
> BNC connector on the one receiver to either of the BNC connectors on the
> other receiver.
> 
> I like the AN/VRC-12.  It had a 47-year service history with US forces,
> length unmatched by any other US radio gear in history.  The last units were
> removed from reserve unit service in 2008.  In the mid-1960s, it was
> fabulously expensive...with a RT-246A/VRC costing taxpayers close to $20,000
> in 1968...about $100,000 today.
> 
> Mike / KK5F
> 
> ______________________________________________________________
> Milsurplus mailing list
> Home: http://mailman.qth.net/mailman/listinfo/milsurplus
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Milsurplus at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> 
> ______________________________________________________________
> Milsurplus mailing list
> Home: http://mailman.qth.net/mailman/listinfo/milsurplus
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Milsurplus at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html