[Milsurplus] Navy Model BP IFF?

[Robert Downs]

It’s the shipboard side of a MK-IV IFF set.  ABA or SCR-515 is the aircraft side.  Somewhere I have the preliminary operating instructions still marked CONFIDENTIAL (equivalent to today’s SECRET).  And the installation instructions only marked RESTRICTED.  My understanding is that it was never fielded because the MK-IIIG was never compromised.  Notes in my database say that it was a converted BN which was the equivalent MK-III.

 

Robert Downs

 

From: milsurplus-bounces at mailman.qth.net [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of Jim Whartenby
Sent: Monday, July 1, 2019 01:32
To: Military Surplus Mail List
Subject: [Milsurplus] Navy Model BP IFF?

 

Have this RF to IF Converter, appears to be late WW2 vintage and is unused.  

 

Type CFN-46ADT uses a 2C40 1st RF, 2C40 2nd RF, 2C40 mixer, all in silver plated cavities and a 955 local oscillator.  Uses UHF type connectors, not Type-N.

 

What little I found on the internet shows a conversion to 432 so I assume it is in the 500 mc operating area.  

Anyone know more?

Jim

 

I wonder why people argue over the 10% of their differences and ignore the 90% they agree on?

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20190701/bc0e5618/attachment-0001.html>