[Milsurplus] SC-901X questions

[Francesco Ledda]

When I worked a Rockwell Collins, there was an underground antenna system in front of building 413.  This antenna was deployed in all Titan silos to work with the SC-901s and to be used as the backup antenna after a nuclear blast hit the silo.  I don’t what happened to that antenna, since now that field is a parking lot….  

 

The good old days…..  

 

 

 

From: Ray Fantini [mailto:RAFANTINI at salisbury.edu] 
Sent: Wednesday, March 28, 2018 9:02 AM
To: Francesco Ledda; 'Nick England'
Cc: milsurplus at mailman.qth.net
Subject: RE: [Milsurplus] SC-901X questions

 

Lots of stuff sneaks thru as special requirements or programs, look at the RF-301 that’s not exactly Mill Spec but it became the AN/URC-53 because there was a need. Other radios never got AN designations despite wide use like the VHF-FM RF-403 transceivers.

Would love to speculate that one of the Navy’s most loved family of radios that includes the R-1051 and URT-23 were the love child of the SC-901 and General Dynamics and sprung forth the USAF requirements for a synthesized SSB radio for missile silos.

 

Have thought about installing a RF Technology RF-403 in the mutt, being it would be a period correct radio that can be installed for two meters. Been using a Motorola URC-110 but that’s just a little too new to go with the rest of the equipment and think I know where I can get a 403 for the cost of shipping, then have to deal with the whole rock issue.

 

Ray F/KA3EKH

 

 

From: milsurplus-bounces at mailman.qth.net [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of Francesco Ledda
Sent: Wednesday, March 28, 2018 9:17 AM
To: 'Nick England' <navy.radio at gmail.com>
Cc: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] SC-901X questions

 

During the Vietnam War, the USAF developed aircraft jammers such as the QRC-160. QRC stands for Quick Reaction Capability and relates to development and deployment of weapon systems ahead of the standard AN/xxx process.  The QRC-160 was developed by the USAF and deployed with the Navy as well.  It later became the ALQ-71.

 

 

 

 

 

From: milsurplus-bounces at mailman.qth.net [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of Nick England
Sent: Wednesday, March 28, 2018 6:52 AM
To: Francesco Ledda
Cc: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] SC-901X questions

 

Hue has the SC transceiver so the military “equivalent” is the RT-618/UR info found in the URC-35 manual. 

 

Speaking of which, if this thing was designed for the USAF, why the goofy commercial model number and not an AN/xxx compliant designation????

 

Has anyone got a dated component or inspection stamp to help figure out the chicken-egg history? I bet there is a good story here but I don’t know what it is. 

 

Yes sometimes the Navy will pay R&D costs on a project that has spinoffs or versions for other services. USAF used a number of Navy-developed equipments but I haven’t come across USAF to USN transfers. Army-Navy sharing was not common (R-390A being a notable exception) And of course USMC used lots of Army gear. 

 

I sure wish someone had written a history of all this procurement. 

 

Nick, puzzled as usual. 

 

On Wed, Mar 28, 2018 at 2:12 AM Francesco Ledda <frledda at att.net> wrote:

Probably, the manual of a plain 1051 will work.

-- 

Nick England K4NYW

www.navy-radio.com

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