[Milsurplus] antenna coupler CU-747/SRR

[Thekan, Paul]

 I recently acquired this coupler along with a FRR-59 rcvr that it was
paired up with. Would like to find a manual or more info on the coupler .
The full description on the  nomenclature plate is as follows;
CU-747(XG-2)/SRR    p/o Antenna Coupler AN/SRA-24 (XG-2).

 Any info is greatly appreciated.

 

Thanks

Paul

N6FEG