M2 Antenna Systems 48.5-4 Assembly Manual

SPECIFICATIONS:
Model ......................................... 48.5-4
Frequency Range ....................... 48.3 to 48.7 MHz
Gain ............................................ 10.39 dBi
Front to back .............................. 24 dB Typical
Feed type ................................... Hair Pin Match
Feed Impedance. ....................... 50 Ohms Unbalanced
Maximum VSWR ........................ 1.5:1 Typical
Input Connector .......................... "N' Connector
FEATURES:
The 48.5-4 has been computer optimized from the ground up for gain and pattern covering 48.3-48.7 MHz. Originally
designed for Meteor Scatter and monitoring systems. The custom 1:1 Fairite balun and low loss hairpin match help
maintain high efficiency. Element 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 35 designs for Meteor Scatter applications covering from 39 MHz to 50 MHz. If
you have a specific requirement, please contact us for more details.
M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722
M2 Antenna Systems, Inc.
Model No: 48.5-4
*Subtract 2.14 from dBi for dBd / FS = Free Space
Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com
©2022 M2 Antenna Systems Incorporated
Power Handling ......................... 1.5 kW
Boom Length / Dia ..................... 151" / 2"
Element Length / Dia. ................ 143" / 7/8" - 1/2"
Turning Radius: ......................... Call
Stacking Distance ...................... Call
Mast Size ................................... 2" to 3 " Nom.
Wind area / Survival .................. 2.1 Sq. Ft. / 100 MPH
Weight / Ship Wt. ....................... 40 Lbs. / 45 Lbs.
08/30/22
Rev.01