Andrew 960 0 - Typical Electrical Grounding for Antenna Ground Pole, Elevation Chart, Degrees

ASSEMBLY AND INSTALLATION

ELEVATION CHART

1.2m System (Ref. Fig. 1.6)

Attach Side Feed Legs and Braces to left and right sides of Reflector using M6 x 20mm Hex Bolts, Lock Washers and Hex Nuts. (NOTE: Long formed end of Feed Leg attaches to Reflector. Short formed end of Brace attaches to inside of Reflector rim.) Attach flat- ten end of Brace to Extension Plate, using M6 x 22mm Round Head, Square Neck Bolts, Tooth Lock Washers, Flat Washers and Hex Nuts. Round Head Square Bolt Fits on the top of Extension Plate. Tooth Lock Washer fits between the flatten end of Brace and Extension Plate, then Flat Washer and Hex Nut. Attach Side Feed Legs to Support Block using M6 x 20mm Hex Nuts and Lock Washers. Leave all hard- ware loose.

Tighten and torque hardware securing Braces, Side Legs, and “U” Clip to Reflector and Support Block to 4 ft- lbs (5.4 N-m). Tighten and torque M6 x 55mm “U” Bolt to 18-22 in-lbs (2-2.5 N-m).

	RD HD SQ NK BOLT
	TOOTH WASHER
	FLAT WASHER
TOOTH WASHER	HEX NUT
	(2 REQ)
HEX BOLT
FLAT WASHER	M6 x 20mm
(2 REQ)
	HEX BOLTS
	LOCK WASHERS
	HEX NUTS
(2 REQ-BOTH SIDES)		BRACE
BLOCK	SIDE FEED
	LEGS
		RD HD SQ
	(2 REQ)
HEX BOLT		NK BOLT &
		ELASTIC LOCK
LOCK WAHER
		NUT
(2 REQ)
RD HD SQ		"U" CLIP
NK BOLT		BOTTOM FEED
FLAT WASHER
LOCK WASHER		SUPPORT TUBE
HEX NUT

FIG. 1.6 - Installation of Feed/Feed Support Legs to Antenna (1.2m Medium Duty)

"L" IS THE DIFFERENCE BETWEEN THE EARTH STATION ANTENNA SITE LONGITUDE AND THE SATELLITE LONGITUDE

										125O																O
90						50O						120O 1													O	65	O
													O		O								O	O	70		50
												15		110			O		O		O	O	80	75			O
				47.			5	O								105		100		95O	90	85					.5
																											47
				45			O																				O
																											45
		42.																										O
						O																						.5
					5																						2
																											4
80	5O		40O																								O
	3	7.																									40
			5	O
																											O
																											.5
	10O																										37
					35O																					O
				32.5O																						35
																											O
																											.5
70	O																									32
	15							30			O
																									O
							27.5			O															30
	20O																									O
							25		O																27.5
																										O
																									25
60	25O

GROUNDING

DEGREES 50 30O

NOTE: All installations to conform to latest issue of National Electrical Code.

Ground antenna mount assembly and feed cables in accordance with current National Electrical Code and local electrical codes. Figure 2.0 and 2.1 illustrates typical grounding methods for the ground pole and feed cables.

Clamps that provide a solid connection between ground wire and ground source should be used.

Tighten and torque all hardware.

IMPORTANT: Sealing RF Coaxial Connector: The copper-plated center conductor in the RF coaxial cable, which connects receiver to LNB, can experience electrolysis corrosion at the LNB connector. Moisture and DC current causes this type of corrosion. To prevent corrosion, apply a moderate coat of silicon grease to the center conductor and wrap the entire connection with COAX-SEAL®tape to seal.

NOTE: ALL INSTALLATION TO CONFORM		IMPORTANT
TO THE LATEST ISSUE OF THE		DRILL HOLE AND ATTACH
NATIONAL ELECTRIC CODE.		GROUND BEFORE POURING
	GROUND POLE	CONCRETE INSIDE GROUND POLE.

APPLY SEALANT HERE, AFTER ASSEMBLY,

TO IMPROVE CORROSION RESISTANCE

DRILL HOLE THRU ONE WALL WITH

7/32" DIA. TWIST DRILL

1/4" EXTENSION TOOTH LOCK WASHER

25"-29"	GROUND LUG
APPROX.
	1/4"-20 UNC x 5/8" HEX HEAD,
	TYPE "D" POINT, SELF TAPPING SCREW

GROUND WIRE

(TYPICAL #10 AWG COPPER, #8 ALUMINUM)

REFER TO NEC SECTION 810 AND LOCAL ELECTRIC CODES FOR THE SPECIFIC AREA REQUIREMENTS.

FIG. 2.0 - Typical Electrical Grounding for

Antenna Ground Pole

	*COAXIAL CABLE
	TO RECEIVER
	*GROUND BLOCK
	NEC SECTION 810-20
	*COAXIAL CABLE
	FROM LNB
	*GROUNDWIRE
	NEC SECTION 810-20
	*ITEMS NOT
	INCLUDED
7	FIG. 2.1 - Grounding Feed Cables

IN		35O
ELEVATION		40O
	40
		45O
	30	50O
		55O
	20	60O
		65O
	10	70O
		75O
	0
	0	10	20	30	40	50	60	70	80

EARTH STATION LATITUDE IN DEGREES NORTH OR SOUTH OF EQUATOR

CHART 2

10