M2 Antenna Systems 222XP30 User manual

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

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

Rev.01

Model .........................................222XP30

Frequency Range.......................222 To 226 MHz

*Gain ..........................................17.4 dBi

Front to back ..............................21 dB Typical

Beamwidth ...............................E=23° H=25°

Feed type ...................................“T” Match

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

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

Input Connector..........................“N” Female

Power Handling..........................1.5 kW

Boom Length / Dia......................24’ 3” / 1-1/2” To 3/4”

Maximum Element Length..........25-7/8”

Turning Radius:..........................13” 10”

Stacking Distance.......................120” High & 120” Wide

Mast Size....................................1-1/2” to 2” Nom.

Wind area / Survival...................2.4 Sq. Ft. / 100 MPH

Weight / Ship Wt.........................12 Lbs. / 13 Lbs.

M2 Antenna Systems, Inc.

Model No: 222XP30

FEATURES:

The 222XP30 is the dual polarized version of the famed 222-5WL 15 element Yagi. It is our latest design using

computer techniques to allow maximum gain and patterns in both the horizontal and vertical planes. The vertical elements

have been shifted 1/4 wave length in front of the horizontal set to allow circular polarization if needed. This means four

possible polarization modes with one antenna! Two antennas stacked are a dynamite DX package for FM and SSB and 4

or more are perfect for long haul tropo DXing or moonbounce. The 222XP30 allows you to experience the radio

spectrum’s best tropo frequency without bustin’ your mast or your budget!

Structurally the 222XP30 is sturdy and clean. Elements are 3/16” 6061-T6 aluminum rod mounted through the

boom on UV stabilized “button” insulators. The boom is a full 1-1/2 inch diameter in the middle tapering through two 1-1/4

inch sections to stiff 1 and 3/4 inch tips. The main ‘N’ connectors are O-ring sealed to the CNC machined block and 4:1

balun connectors feature triple seals. The internal module connections are sealed in a space-age silicone gel.

SPECIFICATIONS:

*Subtract 2.14 from dBi for dBd

Tools required: slot screwdriver, 11/32”, 7/16”, and 1/2” end wrenches and / or sockets.

1. Start by laying out the boom sections using the DIMENSION sheet as a guide. Use the appropriate

8-32 screws and locknuts as shown to join the sections. To make the assembly easier, support the

completed boom about waist high on bucks, tables, etc. Or even better, drive a 1-1/2” to 2” pipe

into the ground and temporarily attach boom using the boom to mast plate and U-bolts at the

balance point shown on the DIMENSION SHEET.

2. Lay out the 3/16” elements by length and position as shown the DIMENSION sheet. Start with the

REFLECTOR (25.875”) element. Balance across finger to find center and push on a black button

insulator to about 1/2” from center. Push the element through the holes 1/2" from the rear of the

boom and install the second button, snugging it up into boom. DO NOT BOTHER WITH

ACCURATELY CENTERING the element at this time and DO NOT INSTALL the stainless steel

internal locking “KEEPERS” yet. This is easier to do after all the elements are installed in the

boom.

3. Install the 25” DRIVEN ELEMENT as you did the reflector. Then continue with the installation of

the DIRECTORS. Note that the Director Elements do not consistently diminish in length from rear

to front, so pay close attention to length and position.

4. Now begin centering the elements. Use a tape measure to EQUALIZE the amount the element

sticking out on each side of the boom. Once you have all the elements centered, sight down the

element tips from the rear comparing each side. Look for any obvious discrepancies and correct if

found.

5. Begin installing the stainless “keepers.” Use thumb and index finger to hold a keeper over end of

the 3/8 x 3” push tube (keeper dished into tube). Hold the element firmly and start the keeper onto

the rod by applying pressure with the push tube. Push the keeper until up tight against the button

insulator (Locking pliers, lightly clamped up against opposite button insulator will help maintain

center reference and keep you from pushing the first keeper too far). Repeat for the opposite side.

Continue installing keepers until all elements are locked in place.

6. Now loosen the 1-1/2” U-Bolts on the boom to mast plate and rotate the boom 90 degrees and

repeat steps 2 through 5 for the VERTICAL set of elements.

7. Mount the DRIVEN ELEMENT BLOCK ASSEMBLIES to the boom using 8-32 X 1-1/4" screws.

Orient the block with the ‘N’-connector facing towards the rear of the antenna and balun ‘F’-

connectors facing towards the front.

8. For the two DRIVEN ELEMENT BLOCK ASSEMBLIES, install a 3/8” SEAL NUT all the way onto

BOTH ‘F’-connectors, with the black Neoprene seal facing out. Attach the balun to one of the ‘F’-

connectors on the block, make two loops, and connect the other side to the other ‘F’-connector.

The extra loop prevents the either balun from touching the first directors. Now tighten the

connectors gently using a 7/16" end wrench. Once the connectors are tight, back the Seal Nuts

out and finger-tighten firmly up against the face of the connectors (or tighten very gently with 1/2”

end wrench). Secure the balun close to the boom with a nylon cable tie in such a way so that it’s

snug but not crushing or kinking the coax.

9. Install the 8-32 x 1/4” set screws (internal Allen head - tool supplied) into the two SHORTING

BARS. Slide the bars onto the 3/16” rod driven element tips and then onto the Driven Element

Block Rods. Position the Shorting Bars as specified on the DIMENSION SHEET: the distance

given is between the outer edge of the Driven Element Block and the inner edge of the Shorting

Bar. Align the bars and rods with each other and tighten the setscrews.

222XP30 ASSEMBLY MANUAL

10. If you have not already done so, attach the boom to mast plate to the boom. It is normally

mounted at the balance point, as shown on the DIMENSION SHEET. Since the feed line

represents significant weight it is best to have it, or a temporary equivalent, attached and fastened

along the boom with cable ties before final mounting the plate. Use two 1-1/2" U-bolts and the

stainless nuts and lock washers provided. DO NOT OVER TIGHTEN. 2” U-bolts are provided for

mounting the antenna to your NON-CONDUCTIVE mast.

11. OVERHEAD GUY SYSTEM

Locate the 3/8 x 14” fiberglass rod, the three fiberglass rod mast clamp blocks, the fiberglass mast

clamp flag and the remaining four 8-32 x 1-1/4” screws and locknuts. Attach two fiberglass rod

mast clamp blocks to the boom to mast plate with two 8-32 x 1-1/4” screws and locknuts as shown

below in the figure. Insert the 3/8 x 14” fiberglass rod into the slot formed by the two blocks and

tighten the two locknuts. Now assemble the remaining fiberglass rod mast clamp and mast clamp

flag with two 8-32 x 1-1/4” screws and locknuts. Slide the assembly onto the fiberglass rod as

shown below in the figure

and tighten the two

screws.

Figure 1. Overhead Support Detail

12. Using the Dimension Sheet as a guide, install the two small “U” clips (3/16” rod) into the top side of

the 1” rear and rear boom sections. Secure the “U” clips with keepers.

222XP30 ASSEMBLY MANUAL

13. Install the two turnbuckles into the fiberglass rod mast clamp assembly as shown above in the

figure. Adjust threads until just one or two show inside turnbuckle body. With two friends, lift up

the two ends of the boom until the middle is 4” to 6” LOWER than the ends. Attach one end of the

Dacron cord to the rear U clip by taking two wraps through the “U” and finishing with two half-

hitches or a square knot. Adjust to leave 2” to 4” of cord after knots. Attach the other end of the

cord to the front clip in the same way. Equalize excess cord at the riser tube and cut. Take rear

cord end and make two wraps through rear turnbuckle eye, then pull line taut and knot as above.

Repeat for front cord and turnbuckle.

14. MOUNTING INFORMATION

MOUNTING THIS ANTENNA ON A METALLIC MAST WILL GREATLY HAMPER ITS

PERFORMANCE, THEREFORE THE ANTENNA MUST BE MOUNTED ON A NON-

CONDUCTIVE SUPPORT. If you have not already done so, install your antenna on your non

-conductive mast. Supporting the antenna at the boom-to-mast plate will tension the cord and will

help the knots to take a set. If possible, let this process extend overnight. Then adjust turnbuckles

so boom ends bow up slightly (and equally). A few days on the mast should leave the boom

straight. Cut any excess length of cord, leaving 2” to 4”. To prevent fraying melt ends with heat or

flame and tape back to main line. NOTE: You may notice that the boom may drop slightly from

end to end. This is normal and in no way will affect the performance of the antenna.

15. STACKING INFORMATION

Stacking two of these antennas either horizontally (E-Plane) or vertically (H-Plane) by 118” (center

of one boom to another) should yield the maximum theoretical gain for stacking, with clean

patterns. When stacking 4 or more antennas use the same figure, 118”. Be sure all antennas are

oriented so the HORIZONTAL and VERTICAL driven element blocks are on the SAME SIDE of

the boom and NOT MIRROR IMAGE to each other. M2can also provide low loss LMR400 or

LMR600 phase lines and 4 port power dividers, depending upon your system requirements.

If you need any additional information or HELP with your system, PLEASE CALL US!

THIS COMPLETES THE ANTENNA ASSEMBLY.

CAREFULLY MANUFACTURED BY:

M2ANTENNA SYSTEMS, INC.

4402 N. Selland Ave.

Fresno, CA 93722

(559) 432-8873 Fax: 432-3059

www.m2inc.com Email: [email protected]

222XP30 ASSEMBLY MANUAL

222XP30 DIMENSION SHEET

DESCRIPTION QTY

BOOM, 3/4 X .049 X 18” ALUM. TUBE................................1

BOOM, 1.0 X .058 X 51” ALUM. TUBE................................1

BOOM, 1.0 X .058 X 57” ALUM. TUBE................................1

BOOM, 1-1/4 X .058 X 60 SOE, ALUM................................2

BOOM, 1-1/2 X .058 X 60 SBE ALUM..................................1

ELEMENT, 3/16 X SEE DIMENSION SHEET....................30

/2 BALUN, RG6U................................................................2

‘T’ MATCH BLOCK ASSEMBLY...........................................2

BOOM TO MAST PLATE, 3/16 X 4 X 6” ..............................1

DACRON, 3/32” X 30 FT.....................................................1

VERT. SUPPORT ROD, 3/8 x 14” FGLASS ROD................1

TURNBUCKLE, 1/4”.................... ........................................2

HARDWARE BAG #1

U-BOLT AND CRADLE, 2”...................................................2

U-BOLT AND CRADLE, 1-1/2”.............................................5

NUT, 5/16-18 SS................................................................10

LOCKWASHER, 5/16” SPLIT RING SS.............................10

HARDWARE BAG #2

NUT SEAL............................................................................4

BUTTON INSULATOR, 3/16” POLY...................................60

KEEPER, 3/16” SS.............................................................64

TURNBUCKLE, 1/4”.............................................................2

SCREW, 8-32 X 1-3/4” SS, PHILLIPS..................................6

SCREW, 8-32 X 1-1/2” SS, PHILLIPS..................................4

SCREW, 8-32 X 1-1/4” SS, PHILLIPS..................................8

SET SCREW, 8-32 X 1/4” SS...............................................8

LOCKNUT, 8-32 SS ...........................................................18

SHORTING BLOCK .............................................................4

CLAMP BLOCK, 1/4 x 1” ALUM...........................................3

CLAMP BLOCK FLAG, 1/4 x 1-1/2” ALUM...........................1

U-CLIP, 3/16” ROD...............................................................2

NYLON TIE, 5” BLACK.........................................................8

ALLEN WRENCH, 5/64”.......................................................1

PUSH TUBE, 3/8” X 3” ALUM ..............................................1

Carefully manufactured by:

M2ANTENNA SYSTEMS, INC.

4402 N. Selland Ave.

Fresno, CA 93722

(559) 432-8873 Fax: 432-3059

www.m2inc.com Email: [email protected]

222XP30 PARTS & HARDWARE

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