[Milsurplus] BC-455-B UK Standard Beam Approach

[Mike Morrow]

Bruce wrote:

> When the German paratroopers showed up on the front they were found to 
> be using 28-30 Mc. There was a scramble to obtain receivers that could 
> tune that range.

Michael wrote:

>That's above the tuning range of the RAT(-1), RAV and RAX but within the
>range of the Admiralty converted BC-455s.  Hmmm ... Okay, I'm not going to
>start speculizing.  :-)

List member Gordon White wrote the most informative article on those modified
BC-455-B sets that I've ever seen (CQ Magazine, June 1968).  The notes that
I entered into a record I keep says:

"Some BC-455-B receivers were modified in the UK to cover 28 to 41 MHz for
 the “Lorenz” type of directional VHF (dot-dash) beams used in the UK for
 airfield instrument approaches using the “Standard Beam Approach” (SBA)
 system.  

"Externally, the modified receiver had a dial calibrated from 28.0 to 41.0
 MC plus a UK-style antenna connector on the left side.  It was stamped
 “MOD CBA” (Modified for C(??) Beam Approach).  It is unknown who performed
 these conversions or how many were made."

Mike / KK5F