Trip Report(Classified)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-02820A000700060005-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 3
• Document Creation Date: December 9, 2016
• Document Release Date: October 4, 2000
• Sequence Number: 5
• Publication Date: September 21, 1961
• Content Type: TRIP

Approved For Releas 2001/08/02 : CI , 78-02820A0007QD060005-3
21 September 1961
MEMORANEIJM TO THE `ILR
PROM:
SCBJRCT s Trip Report
1. because of an expected large increase in traffic volume during the
recent OAS conference, it was decided to install two-way radio teletype in 25X1A6a
the commo facility at
25X1A6a
2. 1 arrived in - 24 July 1961. The following day, - 25X1A9a
the technician from arrived. The new equipment and materials 25X1A6a
for the installation was held in customs and was not released until 3 August.
3. During the time the equipment was held in customs it was necessary
that we revamp and rewire both the 4P8 and SP rooms. None of the antenna
coaxial leads were properly marked or known and it became necessary to cut
all of them and rework them on top of the building (12 floors up) as well as
below. The ASR teletype machine (S.P.) was rewired for use as a back-up for
the new teletype equipment. One VRA receiving whip antenna was installed,
and a new transmitting dipole was built and installed. SP recorders were
wired to receivers. A new power line was put in from the main power source
of the building. Roth the S.P. function and the commo functions are now
fully integrated - both using the same power, sharing antennas? teletype
equipment, emergency generator, etc.
4. The new equipment finally broke customs on 3 August. We sent an
activation request for OTT traffic on 5 August, and was notified 7 August
to activate.
5. The ATS-50 antenna tuner was sent in a later shipment and was also
held in customs.
6. We finished the installation after midnight on several days so
that the operators could clear all traffic and the SP crew could also con-
tinue their work. At times there were as many as nine operators busy, so
that wiring and installation was impossible during the day.
7. departed after the completion of the installation, while
I stayed on to do odd jobs working on receivers, electric typewriters, air-
conditioners, recorders, etc. - awaiting the arrival from customs the AT8-50,
which was finally installed.
8. The COS in asked me to check out a local broadcast 25X1A6a
station and make recommendations for future expansion and improvements. This
was accomplished; the write-up of which will be incorporated in the COS's re-
port to DIR.
Approved For Release 2001/08/02 : CIA ;V2820A000700060005-3
 Approved For Release 2001/08/02: CIA- 0A000700Q50005-3
B 'ECT s Trip Report 21 September 1961
9. Drawings of the completed installation at have been
submitted to o-.EBBS for drafting and to be incorporated in the
reports.
25X1A6a
25X1A2dl
10. I arrived in 5 September 1961.
11. Teletype and exciter equipment necessary for the receipt and trans-
mission of radio teletype had not been released from customs, and was still
in customs when I departed one week later.
12. The operating room at . was in bad shape from a cleanliness
viewpoint. The floor had been swept clean by the TDY operator from
and by the newly arrived SP operators, but still looked messy. Coffee had
been spilled over the top of the GPT-750 transmitter, and had not been
wiped off. As a result, the top of the transmitter had become rusty.
Temporary wiring had been put in to accommodate the S.P. team, and equipment
had been reshuffled.
There is no ground plane for this whip and the braid of the coax feeding it
is effectively floating. This type installation will not due for RTTY
operation without burning out coax, etc.
25X1A6a
25X1A6a
13. The GPT-750 was feeding a premax whip which had been adjusted to a
ngth of about 15 feet (presumably to tune it to some high frequency in use).
11. It was recommended and approved that the spare ATS-50 ant
coupler complete with 35 foot whip and base be sent from
for installation.
25X1A9a 15. is a competent technician who has been given the job of
I rewiring and installing new equipment at the= coma facility.
I
25X11A6a
I
Recommendations:
Due to my own observations and by reports from technicians servicing
Commo stations, I strongly recommend that the A.D. engineer
make a tour of all stations under his jurisdiction which have not recently
been visited or are suspected as being faulty. He may thereby obtain a
clearer picture of the present condition of these stations and be able to
make recommendations to improve them. A team of two technicians could
follow the engineers direction and accomplish whatever he feels is necessary,
allowing sufficient time to insure that new materials and equipment bad
arrived at these stations before the technicians were allowed to proceed.
Approved For Release 2001/08/02 : CIA-RDP78-0282OA000700060005-3
 - Approved For Release 2001/08/02 : CIA
SUS: Trip Report
General Information:
A0007Q0060005-3
21 September 1961
Whenever 51Js or other receivers with unbalanced audio output are used
with the balanced input of the Northern frequency shift converters, one half
of the input transformer is shorted out, thus causing a decrease in the input
impedance from 600 to 150 ohms. This loads down the receiver and causes
lover audio output. I modified three of these converters in from 25X1A6a
balanced to unbalanced input by simply cutting off two wires from the input
transformers, thereby removing the ground from the center tap of these trans-
formers. The increase of audio output from the 51J receivers was remarkable.
Readquarters informed the field that it is not desireable to send fSK
crystals to the fi+g3 because they do not with to be "rock" bound, and prefer
excitation to the FSK from a master oscillator. While I agree with this to a
degree, there are a couple of objections to this. First there is the problem
of changing the multiplication ratio on the 7BK when installed in the OFT-759;
this being very difficult to see and reach. Secondly, If the PW becomes
inoperative (troubles beyond tubes) there is no crystal back-up. This assumes
no spare 7140', available. I believe the P140 should be used whenever possible
to enable the operator to "slide" out of QRM on a primary frequency, but upon
request for a change in frequency which would require a change in multiplication
ratio at the FSK, the operator could switch to a crystal position which would
have a-,preset multi-ratio.
Distribution:
Original
Routing/File
Monthly Report
RES Chrono
Attachments:
1.
RF Patch Panel Dwg. (1)
2.
Power Wiring Dwg. (1)
3.
Teletype Patch Panel and
Terminal Block Wiring
(1)
4+.
Roof Antenna Layout Dwg.
(1)
Approved For Release 2001/08/02 : CI820A000700060005-3