OUR PROPOSAL NO. 1078G

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03424A002000020013-5
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 8
• Document Creation Date: December 22, 2016
• Document Release Date: September 19, 2011
• Sequence Number: 13
• Publication Date: October 16, 1958
• Content Type: MEMO

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October 16, 1958
Our Proposal No. 1078G
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Based on discussions with you at our plant, your specifi-
cations entitled "Stacked Yagi Antenna Requirement" and sub-
sequent conversations, we can supply you with two units of
antenna system including tower, support structure, rotator
equipment and indicators at a cost of $8,500.00 per unit.
Our proposal is based on meeting all the requirements as
stated in your specification.
The following points based on subsequent discussions would
be included in the specifications:
1. Lowest antenna element to be 50 feet from the ground.
2. Azimuth rotation of 360? satisfactory.
3. Operation of rotator to be required at 115 volts AC, 12 volts DC.
I} Operation under ice conditions 4"-2" radial ice.
5. Commercial finish satisfactory - no paint - iriditing on
aluminum surfaces.
6. Transmission line to rotator to be provided - RG-9/U or
equivalent.
7. Remote control - only electrical control is required.
8. Commercial packing.
9. Trial erection at plant.
10. Fiberglas spars to be investigated, if necessary.
CONFIDENTIL
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ENGINEERS ? DESIGNERS ? MANUFACTURERS OF HIGH FREQUENCY ANTENNAS
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CONFIDENTIAL
October 16, 1958 25X1
application. It appears that it will be easier to accomplish
the 12 volt and 115 volt operation using the chain drive approach.
Also, tolerances will not have to be held as closely using the
chain drive.
Our approach to this project will be to utilize a support
frame as shown in attached Sheet 1. This support frame will
be made of more than one. piece so it can be satisfactorily
packaged for shipment. It will include clamping mechanisms
for either vertical or horizontal polarization case. To change
polarization, it will be necessary to reorient only the entire
support frame and it will not be necessary to disconnect and
change each individual antenna. This should save time in re-
orienting the antenna to the opposite polarization.
Our preliminary calculations indicate that the loading is
quite heavy considering the icing and windload. Therefore,
it becomes necessary to use a much heavier positioner than a
standard rotator such as the type as are commercially available.
In order to provide for 12 volt DC and 115 volt AC operation,,
a considerably different type rotator is required. We have in-
vestigated two types of rotators; mainly, a regular base type
positioner with gear drive and also another type of posi?tioner
which would be a chain drive. Our present approach is to con-
sider the chain drive type as being more appropriate to the
Our plans, at the present, are to utilize an Alpar tower,
type E12, as shown in Sheet 3.
The proposed method of attachment of the rotator assembly
to the top tower section is shown in Sheet Li.. This approach
will allow the overturning moment to be transmitted to the
tower at the upper thrust bearing. A use of a lower thrust
bearing will provide for alignment of the mast. Although it
is not shown in the sketch, we plan to provide a protective
cover for the rotator assembly.
Because the rotator design will be a special design, it
will take a little bit longer to deliver than previously
anticipated. Delivery of a suitable rotator is approximately
90 days. Therefore, we think a realistic date on these two
systems would be 120 days after. receipt of an order.
Price quoted is f.o.b. Sherburne, New York.
_NTIAL
sue, N. Y25X1
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3 - October 16, 1958 25X1
Thank you for the opportunity of submitting a proposal on
this problem and if we can answer any questions on this proposal,
please contact me.
Very truly yours,
Asst. Vice President
Commercial && Government Sales
SHERBURNE, N. y.25X1
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