Channel Master 243 Manuale utente

Type 243

2.4m Offset Tx/Rx Antenna System

Instruction and Assembly Manual

Printed in U.S.A. 12/98 8000450-02

Premier Business Park, Crofthead Road,

Off Philips Road, Whitebirk Industrial Estate

Blackburn, Lancashire England BB1 5UE

(0254) 680444 ■ Fax (0254) 672299

1315 Industrial Park Drive, P.O.Box 1416

Smithfield, N.C. 27577 U.S.A.

Fax (919) 989-2200

Phone (919) 989-2205 (Customer Service)

(UK) Limited

EXCEPTION TO CHART ABOVE:

⁵⁄₈”x5¹⁄₂” Round Head Square Neck Bolt (Item #2), securing antenna to mount.

Torque to 35 Ft-lbs (47 N-m).

¹⁄₂”x1¹⁄₂” Hex Head Bolt, securing antenna halves.Torque to 35 Ft-lbs (47 N-m).

BOLT TORQUE

GRADE 5 GRADE 2

⁵⁄₁₆ IN. ³⁄₈ IN. ¹⁄₂ IN. ⁵⁄₈ IN. ³⁄₄ IN. ⁷⁄₈ IN. 10 ¹⁄₄ IN. ⁵⁄₁₆ IN. ³⁄₈ IN. ¹⁄₂ IN. ⁵⁄₈ IN. ³⁄₄ IN. ⁷⁄₈ IN.

18 31 75 150 250 350 32 6 11 20 43 92 124 175

FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS FT-LBS

24 42 102 203 339 474 3.6 8 15 27 58 125 168 237

N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m N-m

GRADE 5

APPLY 18 FT-LBS (24 N-m)

OF TORQUE TO ⁵⁄₁₆ BOLT

EXAMPLES: GRADE 2

APPLY 11 FT-LBS (15 N-m)

OF TORQUE TO ⁵⁄₁₆ BOLT

SITE SELECTION

The first and most important consideration when

choosing a prospective antenna site is whether or

not the area can provide an acceptable “look angle” at

the satellites. A site with a clear, unobstructed view

is preferred. Also consider obstruction that may occur

in the future such as the growth of trees.Your antenna

site must be selected in advance so that you will be

able to receive the strongest signal available.To avoid

obstructions, etc., conduct an on-site survey with a

portable antenna.

As with any other type of construction, a local building

permit may be required before installing an antenna.It

is the property owner’s responsibility to obtain any and

all permits.

Before any digging is done, information regarding the

possibility of underground telephone lines, power

lines, storm drains, etc., in the excavation area should

be obtained from the appropriate agency.

Because soils vary widely in composition and load

capacity, consult a local professional engineer to

determine the appropriate foundation design and

installation procedure. A suggested foundation design

with conditions noted is included in this manual for

reference purposes only (see page 4).To assist in the

foundation design, refer to “Outline Drawing” in the

Appendix “A” on page 16.

ASSEMBLY TOOLS REQUIRED

■■Grounding Rod Clamp & Grounding Block: As required by

National Electric Code or local codes.

■■Ground Wire: As required by National Electric Code or local

codes (length required).

■■Coaxial Cable: Size and length required.

■■Concrete: See “Ground Pole” section for quantity.

■■#3 Rebar: See “Ground Pole” section for quantity.

Deformed steel per ASTM A615, Grade 40 or 60.

PREINSTALLATION CHECKLIST

1 - Compass

1 - Clinometer

1 - 9” Magnetic Bubble Level

1 - Torque Wrench

(Capacity 4 Ft-lbs - 175 Ft-lbs)

1 - ¹⁵⁄₁₆” Deep Socket (¹⁄₂”Drive)

1 - 1 ⁵⁄₁₆” Deep Socket (¹⁄₂”Drive)

1 - ³⁄₄” Socket (¹⁄₂”Drive)

1 - Ratchet Wrench (¹⁄₂”Drive)

1 - ⁷⁄₁₆” Nutdriver

1 - ⁷⁄₁₆” Box/Open End Wrench

1 - 1¹⁄₈” Open End Wrench

1 - 12” Crescent Wrench (Adjustable)

1 - ⁷⁄₁₆” Socket (For Torque Wrench)

GROUND POLE INSTALLATION - 6⁵⁄₈”O.D.

EXPOSURE “C” EXPOSURE “C”

WIND CONC CONC

ANT VEL DIM VOL DIM VOL GROUND

SIZE (MPH) “d” (CUYD) “d” (CU YD) POLE

2.4m 100 44” 1.7 37” 1.6 “A”

SMC

OFFSET 125 53” 2.4 45.25” 2.6 “B”

POLE SPECIFICATIONS:

Ground Pole “A” = 6.62 OD SCH 40 (6.06 I.D.) Steel

Ground Pole “B” = 6.62 OD SCH 80 (5.76 I.D.) Steel

NOTE:

1. Poles “A” and “B” are not supplied (purchased locally to ASTM A501) and must be field drilled ⁵⁄₈ Dia.for #3 rebar, drilled .218 for ¹⁄₄-

20 self tapping grounding screw and galvanized or painted for protection.

2. Pole and foundation design based on the following criteria:

a. Uniform building code Exposure C and 1.5 stability factor.

b. Vertical soil pressure of 2000 pounds per square foot.

c. Lateral soil pressure of 300 pounds per square foot.

d. Concrete compressive strength of 2500 pounds per square inch in 28 days.

CAUTION: The foundation design shown does not represent an appropriate design for any specific locality, since soil conditions vary

and may not meet design criteria given in Note 2.You should consult a local professional engineer to determine your soil conditions and

appropriate foundation.

,,,

108"

63.5" 69.5"

50"

1" to 2"

SLOPE FOR

WATER RUN-OFF

GRADE

#3 REBAR X DIA. OF PIER,

INSERTTHRU HOLE IN

TUBE & CENTER BELOW

FROST LINE

MIN.

DIA.

6⁵⁄₈" O.D.

,,,

108"

63.5"

66"

1" to 2"

SLOPE FOR

WATER RUN-OFF

GRADE

#3 REBAR x 18"

INSERTTHRU HOLE IN

TUBE & CENTER

BELOW

FROST LINE

MIN.

DIA.

6⁵⁄₈" O.D.

(SEE NOTE)

APPROX.

(6) #3 x 24" MIN.

AT 60˚ APART

(SEE NOTE)

ANT

NOTE:

66" may be

increased,

concrete and

length of rebar

will increase

accordingly.

DEEP FROST LINE FOUNDATIONSPIER FOUNDATIONS

GROUND POLE

MUST BE

LEVEL IN ALL

DIRECTIONS

BUBBLE

LEVEL

ASSEMBLY

FIGURE - 1.0

TOP

BOTTOM

REFLECTOR ASSEMBLY

1 - Place reflector halves on a flat surface, face

down. (Ref.Figure 1.0).Install ¹⁄₂”x1¹⁄₂”hex bolts with

flat washer into the two outer bolt holes at reflector

rim. Secure with ¹⁄₂” flat washer, lock washer and hex

nut as shown in Figure 1.1. Repeat on opposite side

of reflector. Leave loose.

2 - Install remaining seam bolts, working toward center

of reflector as noted above. Repeat on opposite side

of reflector. Leave finger tight. (Ref.Figure 1.2)

NOTE: All seam bolts to be finger tight only.

MOUNT AND BACKFRAME ASSEMBLY

3 - Place yoke cap assembly onto ground pole, and

loosen two ¹⁄₂” carriage bolts (16) securing R.H.channel

to yoke cap (non-welded). Reference Figure 1.3.

4 - Install backframe (1) onto yoke cap assembly and

secure with ⁷⁄₈” x 6” hex bolt, lock washer and hex nut

(24, 15 & 14). Do not tighten. Remove two ¹⁄₂” bolts

from Trunnion, swing backframe down and secure

elevation screw and trunnion (25 & 26) to AZ/EL cap

with ¹⁄₂”x1¹⁄₄” hex bolt and lock washer (17 & 3).

Leave loose. Reference Figure 1.3.

5 - Loosen ⁷⁄₈” elevation nuts (14) on elevation screw

(25) and run up to place backframe in birdbath position

(see Figures 1.3 & 1.4).

FIGURE - 1.1

¹⁄₂ FLAT WASHER

¹⁄₂ LOCK WASHER

¹⁄₂ FLAT WASHER

¹⁄₂ x 1-1¹⁄₂

HEX BOLT

(6 PLCS -

BOTH SIDES)

¹⁄₂ HEX NUT

FIGURE - 1.2 FIGURE - 1.3

GROUND

POLE

BACK

FRAME

YOKE

CAP

ASSEMBLY

25 26 17

FIGURE 1.5

.025 MAX MISMATCH

HORIZONTAL

SEAM

PARABOLIC

PREFERRED

SEAM

MATCH

ACCEPTABLE

SEAM

MATCH

2ND CREDIT CARD

OR FEELER GAGE

.028 THICKNESS

WON'T GO

CREDIT

CARD

CREDIT

CARD

CREDIT

CARD

HORIZONTAL

SEAM

HORIZONTAL

SEAM

ANTENNA INSTALLATION

6 -Insert four ⁵⁄₈”x5¹⁄₂”round head square neck bolts

(2) into reflector assembly (5) and affix on to back-

frame.Reflector section marked “TOP” must be located

at the top end of backframe. Make sure round head

square neck bolts are seated correctly before securing

reflector to backframe. Secure reflector to backframe

with ⁵⁄₈” lock washers and hex nuts. Leave these

bolts loose. Reference Figure 1.4.

SEAM ALIGNMENT

7 - Lower reflector to vertical position by running

down two elevation nuts (14).

8 - Check the horizontal seam match as shown in

Figure 1.5. If alignment is required, begin at the outer

rim by pushing or pulling on the bottom reflector rim,

while another tightens their seam bolts at this loca-

tion. Continue this process, working toward the cen-

ter, and alternating from one side to the other.

9 - After all seam bolts are tightened, torque bolts,

using the same sequences as above, to 35 ft-lbs. Now

tighten and torque (4) reflector mounting bolts to 35 ft-lbs.

NOTE: Certain models reuqire additional alignment

instructions. Refer to supplement for detailed instruc-

tions.

FEED SUPPORT TUBE INSTALLATION

10 - Install ¹⁄₄”x1¹⁄₂” hex bolt with flat wahser (46 &

7) into bottom hole in reflector and secure with ¹⁄₄” flat

washer and hex nut (7 & 6). Reference Figure 1.6

11 - Install feed support tube (10) onto backframe

and secure with two ¹⁄₂”x5¹⁄₂” hex bolts, four external

tooth lock washers and hex nuts (12, 11 & 4).

Reference Figure 1.7.

IMPORTANT: ¹⁄₄”x1¹⁄₂” hex gage bolt (Item 46) in

bottom of reflector fits into hole on top of support

tube end (Item 10). Reference Figure 1.7.

FIGURE - 1.4

(4 PLACES)

"TOP"

FIGURE - 1.6

NOTE: ¹⁄₂” external tooth washers (11) must be

assembled on bolts, with one under head of bolts

and one under hex nuts (4), refer to Figure 1.7.

Leave these bolts loose.

12 - Install left and right side struts onto reflector as

shown in Figure 1.8.

Attach long formed end of side struts (27) to

reflector rim by inserting ¹⁄₄”x³⁄₄” hex head bolt (28)

through inside of reflector rim and secure snug, but

free to pivot with ¹⁄₄” lock washer and hex nut (6 & 8).

Attach short formed end of side struts (27) to feed

support tube with ¹⁄₄”x³⁄₄” hex bolt, lock wahesr and

hex nut (28, 8 & 6). Tighten and torque hardware

securing side struts to feed support tube only to 6 Ft-

lbs (8 N-m).

13 - Without using excessive pressure, lift feed

support tube vertically just enough to relieve load off

side struts and bottom rim gage bolt (Item 46). While

another person tightens and torque’s ¹⁄₂” hex head

bolts (*) securing feed supprot tube to backframe to

35 Ft-lbs (47 N-m). Tighten and torque ¹⁄₄” hex head

bolts (**) securing side struts to reflector to 4 Ft-lbs

(5.4 N-m). Reference Figure 1.9.

14 - To install ODU or Feeds, see instructions

supplied with these kits.

FIGURE - 1.7

HOLE

FEED

SUPPORT

TUBE

FIGURE - 1.8 FIGURE - 1.9

SHORT FORMED END

OF SIDE STRUTS

ATTACHES TO ORU

SUPPORT TUBE.

LONG FORMED END

OF SIDE STRUTS

ATTACHES TO

ANTENNA.

FEED SUPPORT

TUBE

LIFT UP ON ODU

SUPPORT TUBE HERE,

WHILE ANOTHER PERSON

TIGHTENS AND TORQUES

HARDWARE (* & **).

*TORQUETO 35 FT-LBS (47 Nm)

**TORQUETO 4 FT-LBS (5.4 Nm)

FIGURE - 2.0

GROUND POLE

GROUND LUG

GROUND WIRE (Typical #10 AWG Copper, #8 Aluminum)

Refer to NEC Section 810 and local electric

codes for the specific area requirements.

1/4" - 20 UNC x 5/8" HEX HEAD,

TYPE "D" POINT, SELF TAPPING SCREW

Apply sealant here, after assembly,

to improve corrosion resistance

DRILL HOLE THRU ONE WALL WITH

7/32" DIA.TWIST DRILL

1/4" EXTERNAL TOOTH

LOCK WASHER

REF.10" - 12"

GROUNDING

TYPICAL ELECTRICAL GROUNDING FOR ANTENNA GROUND POLE

NOTE: ALL INSTALLATIONS TO CONFORM TO THE LATEST ISSUE OF THE NATIONAL ELECTRIC CODE

*COAXIAL CABLE

FROM LNB

*COAXIAL CABLE

TO RECEIVER

*GROUND BLOCK

NEC SECTION

810-20

*GROUNDWIRE

NEC SECTION

810-20

*ITEMS NOT SUPPLIED

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.

FIGURE - 2.1

NOTE:

ALL INSTALLATIONS TO

CONFORM TO THE LATEST

ISSUE OF THE NATIONAL

ELECTRIC CODE

ANTENNA ALIGNMENT PROCEDURE

Alignment with the satellite is obtained by setting polar-

ization, elevation and azimuth. Charts 1, 2 & 3 are to

determine the values for your earth station antenna site.

“∆L” is the difference between the earth station antenna

site longitude and the satellite longitude. Use “∆L” and

your earth station latitude to obtain polarization, eleva-

tion or azimuth setting.

POLARIZATION OF FEED

Loosen feed horn clamp bolts and turn feed clockwise

or counterclockwise, depending on being east or west

of the satellite as shown on Chart 1. Align marks on the

horn clamp and appropriate mark on the horn scale.

Polarization chart assumes antenna system polariza-

tion is Tx vertical and satellite vertical Pol is perpendic-

ular to plane of geostationary arc. For horizontal Tx of

antenna, feed must be rotated 90˚ from values shown.

(Starting point for polarization adjustment is 0˚, as

shown in Figure 3.0).

ELEVATION ALIGNMENT

Use Chart 2 and determine your elevation setting.

Using a clinometer, adjust the elevation by turning the

elevation screw adjusting nuts until the desired eleva-

tion is obtained. Reference 3.1. NOTE: Degree values

shown on the clinometer are mechanical; that is

when the reflector face is vertical, mechanical

elevation is 90˚ or axis is 0˚,while the beam elevation

(signal) axis is 22.62˚. Therefore, as the reflector is

tilted, remember to compensate for the 22.62˚ offset

angle to get the correct beam elevation. (See

Appendix A, Outline Drawing, Page 17). This is an

approximate setting. Optimum setting will be

achieved during the fine tuning.

AZIMUTH

Use Chart 3 and determine your azimuth setting.

Values in chart must be adjusted for magnetic devi-

ation for your location for correct compass reading.

Equally tighten the six azimuth locking bolts until snug.

This will allow the reflector to rotate with slight

resistance (Ref. Fig. 3.2.)

Rotate reflector and mount, pointing to the compass

reading for your location (Ref. Fig. 3.3.)

Slowly sweep the reflector in azimuth until signal is

found. If desired signal is not found, increase or

decrease elevation setting and repeat the azimuth

sweep. Tighten locking bolts.

+40-40 0

HORN SCALE

ALIGNMENT MARK

CLAMP BOLT

FIGURE - 3.0

PIVOT

BOLT

(LOOSEN)

ELEVATION

BOLT

(LOOSEN)

ELEVATION

ADJUSTING

SCREW

TRUNNION

CLINOMETER

RIB

ELEVATION

HEX NUTS

FIGURE - 3.1

AZIMUTH

171˚

ROTATE ANTENNA ON

GROUNDTUBE

EXAMPLE:

AZIMUTH HEADINGTO 171˚

(AZIMUTH ±MAGNETIC DEVIATION)

COMPASS

170

180

190

FIGURE - 3.3

FINE TUNING

Progressively tighten and torque azimuth locking bolts

to 85-95 Ft-lbs. The four top plate locking bolts are

factory torqued to 10-11 Ft-lbs., maintain this torque

until after azimuth is fine tuned.

Use a signal strength measuring device for final adjust-

ments to obtain maximum antenna performance.

Alternate between elevation and azimuth fine tuning to

reach maximum signal strength, until no improvement

can be detected. Gradually tighten (¹⁄₈ turn increments

max.) top plate bolts in sequence 1, 3, 4 and 2 to 75 Ft-lbs.,

refer to Figure 3.2. Observe for maximum signal

strength as elevation screw’s locking nuts are tighten.

Polarization tune may be checked by carefully and

slowly rotating feed assembly in clamp.When maximum

signal strength is found, gradually tighten clamp bolts

(Fig.3.0).If a signal on the opposite polarity is available,

this signal should be minimized.

Tighten and torque all hardware. Refer to Torque Chart

on Page 3.

TOP PLATE

LOCKING BOLT

(4 PLCS)

AZIMUTH

ADJUSTING

SCREW

AZIMUTH

LOCKING

BOLTS

(6 PLCS)

TOP PLATE

PIVOT BOLT

TURN NUTS

CLOCKWISE OR

COUNTERCLOCKWISE

FOR AZIMUTH

FINETUNING

FIGURE - 3.2

0 1020304050607080

ANTENNA

FEED

ANTENNA

+ POLARIZATION WHEN EARTH STATION IS WEST OF SATELLITE

– POLARIZATION WHEN EARTH STATION IS EAST OF SATELLITE

EARTH STATION LATITUDE IN DEGREES NORTH OR SOUTH OF EQUATOR

POLARIZATION + OR – (SEE ILLUSTRATION)

" L" ISTHE DIFFERENCE BETWEENTHE EARTH STATION

ANTENNA SITE LONGITUDE ANDTHE SATELLITE LONGITUDE

POLARIZATION CHART

FEED POLARIZATION

FACING ANTENNA

CCW +

CW –

NORTHERN HEMISPHERE

FEED POLARIZATION

FACING ANTENNA

CCW +

CW –

SOUTHERN HEMISPHERE

+–

CHART 1

75°

60°

40°

30°

20°

15°

10°

5°

0 1020304050607080

EARTH STATION LATITUDE IN DEGREES NORTH OR SOUTH OF EQUATOR

ELEVATION IN DEGREES

" L" ISTHE DIFFERENCE BETWEENTHE EARTH STATION

ANTENNA SITE LONGITUDE ANDTHE SATELLITE LONGITUDE

ELEVATION CHART

CHART 2

5°

10°

15°

20°

25°

30°

35°

40°

45°

50°

55°

60°

65°

70°

75°

50°

125°

120°

115°

110°

105°

100°

95°

90°

85°

80°

75°

70°

65°

50°

47.5°

45°

42.5°

40°

37.5°

35°

32.5°

30°

27.5°

25°

47.5°

45°

42.5°

40°

37.5°

35°

32.5°

30°

27.5°

25°

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

180

190

200

210

220

230

240

250

260

270

180

170

160

150

140

130

120

110

270

[AZIMUTH COLUMN READINGWHEN EARTH STATION IS WEST OF SATELLITE]

[AZIMUTH COLUMN READINGWHEN EARTH STATION IS EAST OF SATELLITE]

EARTH STATION ANTENNA LATITUDE (IN DEGREES NORTH OR SOUTH OF EQUATOR)

EARTH STATION ANTENNA AZIMUTH (IN DEGREES)

" L" ISTHE DIFFERENCE BETWEENTHE EARTH STATION

ANTENNA SITE LONGITUDE ANDTHE SATELLITE LONGITUDE

AZIMUTH CHART

CHART 3

0°

5°

10°

15°

20°

25°

30°

35°

40°

45°

50°

55°

60°

65°

70°

75°

NORTHERN

HEMISPHERE

SOUTHERN

HEMISPHERE

WEST EASTWESTEAST

360

350

340

330

320

310

300

290

280

270

To insure that the Tx/Rx Mount and 2.4m SMC Offset Antenna is operating efficiently and at an optimum,

moderate maintenance is required.We recommend conducting a routine Maintenance Inspection every

six months or as needed if unusual circumstances occur, such as severe weather conditions, falling

objects or vandalism.The following checklist is provided for your convenience.

MAINTENANCE INSPECTION CHECKLIST:

1 - FOUNDATION

■Structural Damage

2 -Tx/Rx MOUNT

■All bolts (if any loosening has occurred tighten and torque - refer to Torque Chart page 3)

■Structural Damage

■Corrosion of galvanized steel members

(if necessary, repair with cold zinc-rich galvanizing paint)

3 - 2.4m SMC OFFSET ANTENNA

■Bolts - ⁵⁄₈” round head square neck, securing antenna to mount (Correct torque 20 Ft-lbs/27 N-m)

■Structural Damage

4 - BOTTOM FEED SUPPORTTUBE, SIDE FEED SUPPORT STRUTS AND ODU BRACKET

■All bolts (if loosening has occurred tighten and torque - refer to Torque Chart page 3)

■Corrosion of galvanized steel members (if necessary repair with cold zinc-rich galvanizing paint)

■Structural Damage

5 - FEED ASSEMBLY

■All securing hardware

■Structural Damage

■Feed Horn Weather Cover - Physical Damage (if damaged replace to prevent entry of water)

Upon inspection, make necessary repairs and replace any damaged parts.

For replacement parts, contact:

U.S.A.: VSAT Customer Service, Channel Master England: CHANNEL MASTER

P.O. Box 1416 Premier Business Park

1315 Industrial Park Drive Croft Head Road, Off Philips Road

Smithfield, NC 27577 U.S.A. Whitebirk Industrial Estate

Telephone: (919) 989-2205 Blackburn, Lancashire England BB1 5UE

Fax: (919) 989-2200 (0254) 680444 • Fax (0254) 672299

MAINTENANCE

ITEM PART NO. DESCRIPTION QTY.

1 2020753-03 BACKFRAME ASSEMBLY, GALV 1

2 2070035-01 RD HD SQ NK BLT GALV ⁵⁄₈-13 x 5¹⁄₂”4

3 2509008-02 LOCK WASHER, GALV. ¹⁄₂”20

4 2389002-01 HEX NUT, GALV ¹⁄₂”-13 19

5 3040748-35 2.4M SMC ANTENNATOP HALF (TX QUALITY) 1

- 3040747-35 2.4M SMC ANTENNA BTM HALF (TX QUALITY) 1

6 2382600-01 HEX NUT, SS ¹⁄₄”-20 6

7 2502600-01 FLAT WASHER, SS ¹⁄₄”2

8 2602600-01 LOCK WASHER, SS ¹⁄₄”4

10 2020773-02 BOTTOM FEED SUPPORT TUBE 1

11 2509009-01 EXTERNAL TOOTH LOCK WASHER ¹⁄₂”4

12 2075088-01 HEX BOLT, GALV ¹⁄₂”x5¹⁄₂”2

13 2010301-02 L.H. CHANNEL, CAP MT., GALV 1

14 2389005-01 HEX NUT, GALV ⁷⁄₈”-9 3

15 2509008-04 LOCK WASHER ⁷⁄₈”1

16 2070020-02 RD HD SQ NK BLT GALV ¹⁄₂”x1¹⁄₂” GD 5 1

PARTS AND HARDWARE

Tx MOUNT AND BOTTOM FEED SUPPORT TUBE

ITEM PART NO. DESCRIPTION QTY.

17 2075209-01 HEX BOLT, GALV ¹⁄₂”x1¹⁄₄” GD 5 10

18 2020755-04 YOKE CAP ASSEMBLY, GALV 1

19 2020754-02 TOP PLATEYOKE ASSY, GALV 1

24 2070039-01 HEX BOLT ⁷⁄₈-9” x 6” 1

25 2020555-04 ELEVATION ADJUSTMENT SCREW 1

26 2010453-03 TRUNNION, GALV 1

27 2020774-01 SIDE STRUT 2

28 2072612-01 HEX BOLT, SS ¹⁄₄”x³⁄₄”4

40 2075202-06 AZIMUTH ADJUSTMENT SCREW 1

41 2509008-03 LOCK WSHER, GALV ⁵⁄₈”4

42 2389003-01 HEX NUT, GALV ⁵⁄₈” -13 1

43 2070035-02 RD HD SQ NK BLT GALV ⁵⁄₈”x1¹⁄₂”1

44 2075024-01 HEX BOLT, GALV ¹⁄₂”x1¹⁄₂”12

45 2509014-01 FLAT WASHER, SS ¹⁄₂”24

46 2060033-01 HEX BOLT, SS, ¹⁄₄”x1¹⁄₂” FULL THREAD 1

FIGURE - 12.0

22.6˚ OFFSET MECHANICAL

AXIS

(NORMALTO

ANTENNA FACE)

BEAM

AXIS

69.5"

MH = HORIZONTAL FORCE

FV =VERTICAL FORCE

MT =TORSIONAL MOMENT

MO = OVERTURNING MOMENT

2.4m OFFSET SMC ANTENNA SURVIVAL WINDLOADS AT 125 MPH VELOCITY

ELEVATION FORCE MOMENTS

DEGREES (POUNDS) (FOOT-POUNDS)

MECH. BEAM FHFVMTMO

0 23 3,330 -89 2,612 19,286

10 33 3,152 -666 2,557 18,255

20 43 3,064 -1,288 2,426 17,746

30 53 2,775 -1,843 2,202 16,072

40 63 2,442 -2,220 1,867 14,143

50 73 2,131 -2,442 1,568 12,342

60 83 1,776 -2,553 1,213 10,286

70 93 1,332 -1,976 933 7,715

MOBASED ON 69.5” FROM MOUNTING SURFACE TO C OF ANTENNA.

Values shown above represent maximum forces for any wind direction.

Height and exposure factors from the uniform building code are NOTincluded.

MAXIMUM DISTANCE FROM GROUND TO C OF ANTENNA

6” (NOTE: C IS 6” ABOVETOP OF GROUND POLE)

GROUND FOR WIND SPEED OF:

PIPE EXPOSURE 125 MPH 120 MPH 115 MPH 110 MPH 100 MPH

6.62 O.D B 96” _ _ _ _

x 6.06 I.D. C 62” 67” 73” 80” _

Schedule 40 D _ _ _ 61” 73”

6.62 O.D. C 89” 96”

x 5.76 I.D. D 67” 80”

Schedule 80

TOP

BOTTOM

()

96.87

104.87

32.37

24.00

6.62 O.D. 16.75

63.50 3.25

12.57

22.6"

121.94

6.3

34.75

14.62 1.12 9.0 8.12 15.5

22.6"

10"

.75ø

ANT.

116.25

2.5 SQ

TUBE

35.62

82.25

12.6" REF.

BOT. OF ANT.

4.0 SQ TUBE

26.50

11.00

13.75

ANT.

MECH AXIS

⁷⁄₈ø

69.5

SEE

CHART

TOP OF POLE

BOT. OF ANT.

BEAM AXIS

NOTES:

1. Antenna and mount certified to withstand

125 mph wind.

2. Chart based on A36 (36,000 psi yield) steel

and 1.5 stability - 1991 Uniform Building

CodeTable 23G Exposure B, C or D at 0-15’

height above ground.

APPENDIX A

OUTLINE DRAWING

TYPE 243 2.4m OFFSET SMC REFLECTOR W/Tx/Rx MOUNT

ALL DIMENSIONS IN INCHES

HEX (PIVOT) BOLT, GALV. ⁷⁄₈-9 x 6"

Item 24

ROUND HD SQ NK BOLT, GALV. ⁵⁄₈-11 x 5¹⁄₂"

Item 2

HEX HD BOLT, GALV. ¹⁄₂-13 x 5¹⁄₂"

Item 12

HEX HD BOLT, GALV. ¹⁄₂-13 x 1¹⁄₄", Gd 5

Item 17 HEX HD BOLT, GALV. ¹⁄₂-13 x 1¹⁄₂"

Item 44

HEX HD CAP SCREW, SS ¹⁄₄-20 UNC x ³⁄₄"

Item 28

Hardware illustrations are true size.Place actual hardware on top of illustration to identify.

HARDWARE SORTER

Altri manuali Channel Master Antenna

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