Inspection Report No. 10 - AC-3 Antenna Coupler(Classified)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-02820A001200050028-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: November 17, 2016
• Document Release Date: July 28, 2000
• Sequence Number: 28
• Publication Date: September 21, 1966
• Content Type: MF

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GSA GEM. REG. NO. y7
UNITED STATES GOVERNMENT
" ROM : Mr.
25X1A9a
EP 66-210
DATE: 21 September 1966
SUBJECT: Inspection Report No. 10 - AC-3 Antenna Cou ler
1. Project Description:
The AC-3 is an HF antenna coupler which provides an impedance range
of 35 to 1200 ohms resistance and 0 to ? J1200 ohms reactance and a
transmission line of 50?J 0 ohms impedance. The AC-3 is manually
operated and provides the impedance match over the 3 to 30 Mc/s range
with a VSWR of less than 2:1 while handling 400 watts of continuous
RF power. The AC-3 can measure and monitor the forward and reflected
power (and hence the VSWR) in the transmission line, and contains a
protective circuit which deenergizes the transmitter when a preset
level of reflected power is exceeded due to mistuning or malfunction.
An internal 50 ohm dummy load (over 3 to 3 Mc/s) is included to permit
matching of the transmitter. Primary power to operate the AC-3 is
120 21.0 (?10%), 50/60 cps, AC mains.
2. Contractual Information: 25XIA1a 25X1A
1?;~emorandum
T-lic Files: Contract No. 3786-3120-5
a. Initial Cost: Increase in Scope:
b. Request for. Procurement Action: 1 March 1965
c. Initiation Date: 29 March 1965
d. Completion Date:' Two preproduction AC-3's - 15 June 1966;
ninety-eight AC-3's - 90 days after approval
of preprods.
e. Deliverable Items: One hundred AC-3's w/spares and accessories,
updated engineering drawings
Date of Meeting: 15 September 1966
4. Place of Meeting:
Persons Attending:
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EP 66-210
SUBJRCT: Inspection Report No. 10 - AC-? Antenna Cou ler
a. On schedule and expected to remain so: Yes
b. Within obligated funds and expected to remain so: Yes
c. Satisfactory technical progress: Yes.
7. Project Status:
Warehouse test and inspection procedures were established by
25X1A9a ~, ~ and were compared to the various test parameters established
25X1A5a1 by - ~ electrically assembled AC-3 was closely examined and
demonstrated under various test conditions. Approximately 20 AC-3's
are in final assembly and waiting for electrical test. 25X1A5a1
estimates shipment of between 50-70 couplers on 3O Septem er. e
balance of units are estimated to be delivered by 17 October 1966.
Persons Attending:
Agency Nan-Agency
~., ~, 25X1A5a1
Mr.
Mr. co-op student)
6. Contractor's Performance:
Distribution:
R8~D Subject File
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R&D Zab
OC-OS
BSB
Monthly (3)
EP Chrono
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UC-E~R&D-EP~~bjp (21 September 1966)
Approved For Release 2000/
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