M2 Antenna Systems 30M3-125 Manual de usuario

M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722

Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com

10/3/12

Rev. 03

Model ........................................ 30M3-125

Frequency Range...................... 10.1 To 10.150 MHz

*Gain, (FS) / Over gnd............... 8.69dBi / 14.1dBi @70’

Front to back.............................. 20 dB Typical

Beamwidth ............................... E=62° / H=90°

Feed type................................... Hair pin match

Feed Impedance........................ 50 Ohms Unbalanced

Maximum VSWR ....................... 1.2:1

Input Connector ......................... SO-239, Others avl.

Power Handling ......................... 3 kW, Higher avl.

Boom Length / Dia..................... 30’ / 3” x .125 Wall

Element Length / Dia. ................ 51’ / 1-7/8” To 1/2”

Turning Radius: ......................... 28’

Stacking Distance ...................... 64’ To 74’

Mast Size ................................... 2” to 3 ” Nom.

Wind area / Survival .................. 10 Sq. Ft. / 125 MPH

Weight / Ship Wt. ....................... 123 Lbs. / 149 Lbs.

M2 Antenna Systems, Inc.

Model No: 30M3-125

FEATURES:

This antenna really lights up band! Sun spots up or down: who cares. Day or night 10 MHz is always open

somewhere! The 30M3-125 let you have all the fun you deserve and because of it’s 125 mph rating you won’t lose any

sleep on those stormy nights. The 30M3-125 provides performance and durability. Physically, the Yagi is a medium

spaced, managable 3 element of very rugged construction. A pair of machined, 1/2” thick aluminum boom-to-element

plates secure each element with double cradle clamps to the 3” x .125” wall boom. Elements taper in size from 1-7/8” to

wind area reducing 1/2” tips. Each inner section is double or triple walled at critical points to achieve a 125 MPH wind

survival rating. All hardware, except U-bolts, is stainless steel.

SPECIFICATIONS:

*Subtract 2.14 from dBi for dBd / FS = Free Space

Tools required: Screwdriver, Phillips and slot, 11/32 nut driver ore equivalent, 7/16”,

1/2 and 9/16” end wrench or sockets.

NOTE: Refer to the 'ASSEMBLY DETAILS' AND 'DIMENSIONS’ SHEETS

1. Begin by assembling the center section of the three (3) elements. Locate the (2)

1-1/2” diameter, 18” long solid aluminum rods that form the center splice sleeves for

the director and reflector. Slide a 1-7/8” section over each half and secure with 1/4-

20 x 2-1/2” bolts and locknuts.

2. Repeat step #1 using the 1-1/2” diameter fiberglass center section for the

DRIVEN ELEMENT (D.E.). Pin the 1-7/8” diameter sections with two 1/4-20 x 2-3/4”

bolts. Then place two 1” x 1-1/4” x 1/4” clamp blocks over each bolt. Orient the

clamp blocks so the 3/8” half round grooves face each other. Add the locknut but do

not tighten. The hair pin tubes will be inserted in these clamp blocks later.

3. Next, assemble the center element to boom clamps onto the center of each 1-

1/2” middle section. Center the element and secure each clamp with six 1/4-20 x 2-

3/4” bolts and lockwashers. Keep the plates parallel as you tighten the assembly.

On the driven element clamp assembly, also install the balun mounting bracket. and

orient the bolts through the element halves so the studs are up. This sets up the

correct orientation for the beta rod clamps.

4. Assemble the rest of the element tip sections as noted in the ELEMENT

ASSEMBLY DETAILS.

5. Assemble the boom as shown on the DIMENSION SHEET. Install the two 3/8”

EYEBOLTS and secure with 3/8-16 nuts and lock washers.

6. Orient the eyebolts up and mount the REFLECTOR center section on the boom

placing the rear clamp about 1/2 inch from the rear of the boom.

7. Next mount the Driven element and the director center sections per the

DIMENSION SHEET.

8. Assemble the Hair pin system as shown in the sketches.

9. Add the element tips noting the different tip lengths for each element.

10 locate the balance point and mount the BOOM TO MAST PLATE as close to it

as possible without interfering with the hair pin tubes. Orient the plate perpendicular

to the elements. and secure with the two 3” U-bolts.

30M3-125 ASSEMBLY MANUAL

11. Next insert a standard 2” U-bolt through the turnbuckle plate. Insert this assem-

bly through the top set of u-bolt holes in the boom to mast plate from the boom side

and add the nuts loosely. This operation centers the turnbuckle plate correctly

without putting in a temporary mast section. Open the turnbuckles evenly until just

one thread appears inside the body at each end of the turnbuckle. Hook the turn-

buckles onto the plate.

12. Tie one end of the 5/16’ dacron cord to an eyebolt using 3 half hitches or equiv-

alent. Pull the knots tight. Without cutting the cord, tie the other end to the other

eyebolt. Return to the boom to mast plate, center the cord and cut it so you have

an even amount to attach to the turnbuckle eyes. Loop one cord through a turn-

buckle, pull the cord tight and secure as you did at the eyebolts. Repeat for the

other turnbuckle. Now remove the turnbuckle assembly from the boom to mast

plate. and raise it above the boom until the boom is level. This is the approximate

height you will need above the boom to secure the turnbuckle assembly during final

assembly on the mast.

THIS COMPLETES THE ANTENNA ASSEMBLY

M2Antenna Systems, Inc.

4402 N. Selland Ave.

Fresno, CA 93722

559-432-8873 FAX 432-3059

30M3-125 ASSEMBLY MANUAL

30M3-125 DIMENSION SHEET

30M3-125 ASSEMBLY DETAIL

DESCRIPTION QTY

Boom section, 3 X .125 X 180” SOE 1

Boom section, 3 X .125 X 180 plain 1

Element center splice, 1-1/2” round alum. rod X 18” 2

Element center insulator, 1-1/2” round fiberglass rod X 18” 1

Element section, 1-875 X .058 X 57” plain 6

Element section, 1-3/4 X .058 X 60” SOE 6

Element section, 1-5/8 X .058 X 29” 6

Element section, 1-1/2 X .058 X 54” SOE 6

Element section, 1-3/8 X .058 X 50’ 6

Element section, 1-1/4 X .058 X 21” 6

Element section, 1-1/4 X .058 X 45 SOE 6

Element section, 1-1/8 X .058 X 41” 6

Element section, 1 X .058 X 43” 6

Element section, 7/8 X .058 X 60” 6

Element section, 3/4 X .058 X 39 SOE 6

Element section, 1/2 X .049 X 61.0” 2

Element section, 1/2 X .049 X 44.5” 2

Element section, 1/2 .058 X 40.75 2

Element Mounting Plate, 3” X 6” X 1/2 (M2AEC0041) 6

Cradle Clamps,3” 1 X 1/2 X 4” (M2AMC0136) 6

Band clamp, 2-1/2 TO 3-1/2” SS 1

Hair Pin tubes, 3/8 X .049 X 30”, bent at 25 degrees 2

HF Shorting Bar, 1/2” X 1/2” X 5” (M2ASB0262) 1

Clamp block, 1 X 1 1/4 X .25” (M2AMC0261) 4

Spacer, 3/8 X .049 X 1” 1

Polydisc, 1-1/2” (M2ADI0010) 2

Turnbuckle plate 2 X .5 X 250” alum. (M2APT0110) 1

Turnbuckle, 3/8 X 6” 2

Boom to Mast Plate, 8 X 8 X .25” punched alum.(M2APT0070) 1

Mounting bracket, balun, 1 X 1 X5” angle alum. (M2APT0016) 1

U-bolt and saddle, 3” 2

U-bolt and saddle 2-1/2” 1

U-bolt and saddle, 2”heavy duty, 3/8-16 thread 4

U-bolt and saddle, 2” standard 1

Eye bolt, 3/8” X 6” 2

Dacron rope, 5/16” X 24 ft. 1

Balun Assembly, SO239, 3 kW 1:1(FGBL0100) 1

AssemblyManual 1

HARDWARE

Bolt, 1/4-20 x 3-1/2” ss hex cap 2

Bolt, 1/4-20 x 3” ss hex cap 12

Bolt, 1/4-20 x 2-3/4” ss hex cap 20

Bolt, 1/4-20 x 2-1/2” ss hex cap 4

Bolt, 1/4-20 x 2-1/4” ss hex cap 1

Set screw, 1/4-20 x 1/4” ss 2

Screw, 8-32 x 2” ss pan head 12

Screw, 8-32 x 1-3/4” ss pan head 12

Screw, 8-32 x 1-1/2”: ss pan head 12

Screw, 8-32 x 1-1/4” ss pan head 12

Screw, 8-32 x 1” ss pan head 12

Nut, 3/8-16 ss 14

Lock washer, 3/8” split ring ss 14

Nut, 5/16-18 ss 4

Lockwasher, 5/16” split ring ss 4

Nut, 1/4-20 locking, ss 28

Nut 8-32 ss locking 60

Nylon ties, large 14” black 3

Allen wrench, 1/8” 1

Penetrox cup 1

30M3-125 PARTS & HARDWARE

M2Antenna Systems, Inc.

4402 N. Selland Ave.

Fresno, CA 93722

559-432-8873 FAX 432-3059

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