M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722
Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com
©2022 M2 Antenna Systems Incorporated
08/22/22
Model ......................................... 678-14 (CH48-14)
Frequency Range ....................... 674-682 MHz
Usable Frequency Range .......... 650-684 MHz
*
Gain .......................................... 16.8 dBi
Front to back .............................. 25 dB Typical
Feed type ................................... Folded Dipole
Feed Impedance. ....................... 50 Ohms
Maximum VSWR ........................ 1.2:1 Typical
Polarity ....................................... Vertically / Horizontally
Input Connector .......................... “N” Female
Power Handling .......................... 500 Watts
Boom Length / Dia ...................... 80” / 1” - 3/4”
Stacking Distance ....................... E=42” / H=41”
Mounting ..................................... 1-1/4” to 2” Nom.
Wind area / Survival ................... 0.5 Sq. Ft. / 100 MPH
Weight / Ship Wt. ........................ 4 Lbs. / 6 Lbs.
M2 Antenna Systems, Inc.
Model No: 678-14 (TV CHANNEL 48-14)
FEATURES:
The 678-14 (CH48-14) is designed for deep fringe UHF TV reception where smaller Yagi’s and wide band compromise
antennas just don’t cut it. The antenna enables the “Polarity Flexibility” in any given application. Low cost yet
manufactured for dependability, the 678-14 (CH48-14), the folded dipole, provides a virtual flat match for over 10+ MHz.
The gain has been designed to roll-off quickly above range limits to prevent receiver overload from high power adjacent
channel interference. The heavy duty two piece boom and 3/16” elements, provide superior performance and longevity.
The 678-14 (CH48-14) is a DC grounded antenna designed to help protect receiver front ends from lightning and static.
Specialized single and multiple channel antennas are available for all TV and FM bands.
SPECIFICATIONS:
*Subtract 2.14 from dBi for dBd
