M2 Antenna Systems 41-3BB Manuel utilisateur

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

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

Rev.00

M2 Antenna Systems, Inc.

Model No: 41-3BB

Model .........................................41-3BB

Frequency Range.......................40.6-41.70 MHz

*Gain ..........................................7.69 dBi

Front to back ..............................19 dB Typical

Beamwidth ...............................E=60°

Feed type ...................................Hair Pin Match

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

Maximum VSWR........................1.5:1

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

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

Boom Length / Dia......................107” / 2”

Maximum Element Length..........172”

Turning Radius: ..........................101”

Stacking Distance.......................N/A

Mast Size....................................2” Nom.

Wind area / Survival ...................1.5 Sq. Ft. / 100 MPH

Weight / Ship Wt.........................35 Lbs. / 40 Lbs.

FEATURES:

The 41-3BB has been computer optimized from the ground up for gain and pattern covering 40.6-41.7

MHz. The original design was for the USDA / NCRS Soil Monitoring systems, but the 41-3BB can also be used for Me-

teor Scatter applications. The custom 1:1 Fairite balun and low loss hairpin match help maintain high efficiency. Ele-

ment ring clamps and other important components are CNC machined for maximum strength and electrical integrity. All

antenna hardware is stainless steel and the u-bolts for mounting are zinc plated.

M2 Antenna Systems, Inc. has well over 30 designs for Meteor Scatter applications covering from 39 MHz to 50

MHz. If you have a specific requirement, please contact us for more details.

SPECIFICATIONS:

*Subtract 2.14 from dBi for dBd

41-3BB DIMENSION SHEET

TOOLS REQUIRED: Screwdriver, 11/32 wrench, socket or spintite, a 7/16" and 1/2" wrench or socket, tape measure.

41-3BB ASSEMBLY DETAIL

41-3BB PARTS & HARDWARE

DESCRIPTION......................................................................................... QTY

BOOM SECTION #1: 2” X .125 X 60” SOE.............................................. 1

BOOM SECTION #2: 2” X .125 X 51” ...................................................... 1

DE ELEMENT CENTER, 1.0” X .058 X 12 SOE” .................................... 2

ELEMENT TIPS, 3/4” X .049 X SEE SHEET .......................................... 6

FIBERGLASS DE CENTER, 7/8” X 14.75” (M2AFG0048)....................... 1

ELEMENT SLEEVE, 7/8” X .058 X 30.00” ............................................... 2

RING CLAMP 2”....................................................................................... 3

HAIRPIN SHORT BAR............................................................................. 1

HAIRPIN SHORT BAR SPACER, 3/8” X 7/8” .......................................... 1

HAIRPIN TUBE 3/8” X 30.25” .................................................................. 2

DE 3/8” CLAMP BLOCK, 1” X .250 X 1.250” (M2AMC0261) ................... 4

BALUN PLATE, 1/8” X 2.0 X 4.0”............................................................. 1

BOOM TO MAST PLATE, 6” X .250 X 8” ................................................. 1

(3) FAIRITE 1:1 VHF BALUN ASSEMBLY WITH LEADS ...................... 1

BAND CLAMP WITH HOLE, 2 TO 2-1/2”................................................. 1

PENETROX / ZINC PASTE CUP............................................................. 1

ASSEMBLY MANUAL .............................................................................. 1

HARDWARE:

U-BOLT AND CRADLE, 3”....................................................................... 2

U-BOLT AND CRADLE, 2”....................................................................... 6

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

LOCKWASHER,3/8,SS ............................................................................ 4

NUT,3/8-16,SS......................................................................................... 4

LOCKWASHER,5/16,SS .......................................................................... 14

NUT,5/16-18,SS....................................................................................... 14

BOLT,1/4-20X2.5,HEX HD,SS ................................................................. 2

BOLT,1/4-20X2.0,HEX HD,SS ................................................................. 5

BOLT,1/4-20X1.75,HEX HD,SS ............................................................... 4

BOLT,1/4-20X1.0,HEX HD,SS ................................................................. 3

SET SCREW,1/4-20X.250,SS.................................................................. 2

LOCKNUT,1/4-20,SS ............................................................................... 14

SCREW,8-32X1.25, PH PHL,SS.............................................................. 4

LOCKNUT,8-32,SS .................................................................................. 4

ALLEN KEY, 1/8” ..................................................................................... 1

M2 ANTENNA SYSTEMS, INC.

4402 N. SELLAND AVE.

FRESNO, CA 93722

(559) 432-8873 FAX: 432-3059

www.m2inc.com Email: [email protected]

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