INSPECTION REPORT NO. 2 - AN/B-101 (Classified)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-02820A001400020043-7
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 2
• Document Creation Date: December 9, 2016
• Document Release Date: June 6, 2001
• Sequence Number: 43
• Publication Date: June 21, 1968
• Content Type: REPORT

25X1A
Approved For Release 2001/08/02 : CIA-RDP78-0282OA001400020043-7
Approved For Release 2001/08/02 : CIA-RDP78-0282OA001400020043-7
 1820A00140002(M43-7
Z Approved For Release 200- /03/
EP 68-114
PWJECT: Inspection Report No. 2 - AN/B-101
7. Project Status:
A prototype version of the .AN/B-101 antenna coupler and 15 foot
whip -antenna was demonstrated; it was driven by an RS-101 radio.
Operation of the coupler is relatively simple. The radio is connected
to the coupler's input connector and the antenna is connected to the
coupler's output connector. A switch on the coupler is set to a
position marked PRETUNE (50 ohm dummy load), the radio is actuated
and then loads at the chosen crystal frequency into the 50 ohm load
contained in the coupler. Next, the switch on the coupler is posi-
tioned to the appropriate frequency range desired (2-4 MHz, 4-8 MHz,
8-12 MHz, 12-24 MHz). Using a control marked TUNE, a meter on the
coupler is then peaked for maximum power out into the whip antenna.
Electrically, the coupler works well between 2-12 MHz but be-
tween 14-24 MHz it exhibits mismatch conditions. Additional design
adjustment of fixed component values for maximum performance is
required. Mechanically the coupler is packaged into a rugged cast
aluminum case measuring 6" x 7" x 4". Styling approximates that
of the RS-101 radio. The antenna mounts are currently being con-
structed in the model shop, therefore, installation of the mount
was described using the mechanical drawings. For aesthetic reasons,
the coupler will be painted. with the same textured paint used on
the RS-101. The front panel knobs will also be identical to those
on the production RS-101 radios. Most of the component parts and
hardware for the fabrication of five AN/B-101 service test models
are available.
Distribution:
R&D Subject File
OL/PD/PCB/CAS
R&D LAB
OC -OS
ESB
TSB/FTS
Monthly (3)
EP Chrono
OC-E/R&D-EP: : jcd/3152(21 June t968)
Approved For Release 20@OQL//02 : CIA-RDP78-0282OA001400020043-7
CMM