2.04 N00244-21-Q-0180 Attachments.pdf

Reflector Measurements:

1. Threaded Rod Center to Center Vertical

2. Threaded Rod Center to Center Horizontal

3. Threaded Rod Diameter and Threads Per Inch

4. Feed Ring Spar Face to Spar Face

5. Feed Ring Flat to Flat

6. Feed Ring Top and Sides Width

7. Feed Ring Spar Face Width

8. Threaded rod portion below Feed Ring

9. Feed Ring Height

10. Threaded rod portion above Feed Ring

11. Bottom Feed Ring to Bottom of Feed

12. Bottom of Feed Ring to Reflector Vertex

13. Spar Length

GearBox/Datapack information:

Open Lubrication access port and measure inside depth of gearbox in AZ and EL. If possible, take a picture of Datapack area inside. This is so we know it there are any obstructions we need to know about around the Datapack and also how much room we have for mounting the Anti-Backlash Gear.

Elevation Connector Plate Measurements:

1. Through Hole Diameter

2. Plate Diameter

3. Bolt Circle Diameter

4. Number of Bolts

5. Size of Bolts

Measurements taken on the NAVSOC Det C SGLS antenna on 25 October 2020

Refer to pdf doc titled “NAVSOC Det C Antenna Measurements Ref (a)”

REFLECTOR MEASUREMENTS

Item# Description Completed

1 Threaded Rod Center to Center Vertical 10 and 3/16”

2 Threaded Rod Center to Center Horizontal 10 and 1/8”

3 Threaded Rod Diameter and Threads Per Inch (include pitch) 1/2”; 13 threads per inch

4 Feed Ring Spar Face to Spar Face 17 and 1/4”

5 Feed Ring Flat to Flat 17 and 1/4”

6 Feed Ring Top and Sides Width 1 and 1/2"

7 Feed Ring Spar Face Width 2”

8 Threaded rod portion below Feed Ring 2 and 9/16”

9 Feed Ring Height 3”

10 Threaded rod portion above Feed Ring 6 and 1/4"

11 Bottom Feed Ring to Bottom of Feed 5 and 13/16”

12 Bottom of Feed Ring to Reflector Vertex 12’ 11”

13 Spar Length 14’ 2”

GEARBOX/DATAPACK INFORMATION; open Lubrication access port and measure:

1 Inside depth of gearbox in AZ 7 and 1/4"

2 Width of AZ Gear teeth 3”

3 Thickness of the AZ plate * 1 and 1/2"

4 Inside depth of gearbox in EL. 8 and 5/8”

5 Width of EL Gear teeth 3”

6 Thickness of the EL plate * 1 and 1/2"

* In conjunction with the width of the gear teeth, this measurement will verify the length of the

Datapack shaft needed.

Azimuth Axis

Elevation Axis

ELEVATION CONNECTOR PLATE MEASUREMENTS (feedthrough):

1 Through Hole Diameter 8 and 7/16”

2 Plate Diameter 10”

3 Bolt Circle Diameter 9 and 1/4"

4 Number of Bolts 8

5 Size of Bolts Length = 5/8”;

Width = 3/16”

~20 threads per inch

(see photos next page)

Elevation Connector Plate Mounting Screw photos. TPI ~ 20.

Measuring the difference between the elevation rubber bumper and metal stop

The elevation axis electrical down limit (i.e. motion stopped while moving antenna from ACU) was positive 0.51 degrees. The antenna was lowered from that point using the Local Control

Unit (LCU). Negative 0.05 degrees as indicated on the ACU was as close as we could get using the LCU.

A level placed on the antenna elevation axis had this result.

With the antenna at negative 0.05 degrees as indicated on the ACU, the distance between the top of the rubber elevation bumper and bottom of the metal elevation stop was measured and found to be 2 and 3/4”.

Stow Pin Information

AZ/EL Stow Pins

Stow pin ends

Elevation stow pin storage location (Elevation Enclosure)

End of elevation stow pin storage cylinder inside elevation enclosure

Inside view of elevation stow pin storage cylinder (taken from end outside of elevation enclosure with cap removed)

Azimuth stow pin storage location is to the right of the ladder leading to the azimuth level.

ORG. CODE DATE

D. Kleppen

DETC

DESIGNER

DRAWN BY

CHECKED

APPROVED

APPROVED BY NAVSOC

APPLICATION

Visio 2010 SCALE

SIZE CODE IDENT NO. NAVSOC DRAWING NO.

SHEET(S)

NAVAL SATELLITE OPERATIONS CENTER

FINEGAYAN, GUAM 96912

12/16/20

Det C Existing SGLS

T400

To Antenna

Feed

From

Antenna

Feed

J31

J25

70 MHZ Coax

S-Band Coax

Miteq

Frequency

Upconverter

Intermediate

Power Amp

High Power

Amplifier

(200 Watts)

Low Noise

Amplifier

AMP

IN

AMP

OUT 1

AMP

OUT 2

AMP

OUT 3

Video

Combiner

10 – 500 MHZ

~ 650 Feet of coax

FISCS

Semco

MHZ

MHZ

1.75 – 1.85 GHZ

Input power 0 dBm +/- 3 dB

1.75 - 1.85 GHZ 1.75 - 1.85 GHZ

Interfacility Link (IFL)

Miteq

Downconverter

SGLS Radome

BLDG 285

P-Band Coax

Spectrum

Analyzer

(monitoring)

Note: This drawing is for FISCS; the SGLS

Uplink Amplifier is not used (or shown).

36 dB Gain

15 dB Gain

21.5 dB Gain

Capable of 30 dB Gain.

Currently set to 6 dB of gain via the attenuator setting.

Set for 52.9 dBm output

46 dB Gain