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SPECIFICATIONS:
Model ......................................... 6M7JHV
Frequency Range ....................... 50.0 To 50.4 MHz
*Gain .......................................... 13.0 dBi
Front to back .............................. 25 dB Typical
Beamwidth ............................... E=40° H=42°
Feed type ................................... "T" Match
Feed Impedance. ....................... 50 Ohms Unbalanced
Maximum VSWR ........................ 1.2:1 Typical
Input Connector .......................... "N" Female
FEATURES:
The 6M7JHV is a mid-sized 7 element antenna designed originally for the late Dave Batcho, N5JHV.
The JHV's excellent gain is coupled with a very clean pattern for reducing local noise, making it ideal for long-
haul terrestrial and EME communications. An outstanding performer by itself, the JHV also produces 17 dBd
in an 4-bay array. Mechanical features include machined aluminum element-mounting blocks, O-ring sealed
connectors and balun, silicone-gel sealed T- match block, and stainless steel hardware. Elements are 3/8 tube
and DC grounded. The 1-1/2" boom breaks down into 5 ft sections for easy portability. An overhead guy sys-
tem provides additional boom support. It has become the standard of choice for HF/50 mHz DXpeditions.
M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722
M2 Antenna Systems, Inc.
Model No: 6M7JHV
*Subtract 2.14 from dBi for dBd
Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com
©2015 M2 Antenna Systems Incoporated
Power Handling .......................... 3 kW
Boom Length / Dia ...................... 30' 8" / 1-1/2"
Maximum Element Length .......... 9' 6"
Turning Radius: .......................... 17' 2"
Stacking Distance ....................... 25' High & 27' Wide
Mast Size .................................... 1-1/2" to 2" Nom.
Wind area / Survival ................... 2.5 Sq. Ft. / 85 MPH
Weight / Ship Wt. ........................ 18 Lbs. / 21 Lbs.
 
0722/11
Rev.01

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Summary of Contents for M2 6M7JHV

  • Page 1 *Subtract 2.14 from dBi for dBd FEATURES: The 6M7JHV is a mid-sized 7 element antenna designed originally for the late Dave Batcho, N5JHV. The JHV's excellent gain is coupled with a very clean pattern for reducing local noise, making it ideal for long- haul terrestrial and EME communications.
  • Page 2 6M7JHV ASSEMBLY MANUAL TOOLS REQUIRED: Phillips screwdriver, 11/32 wrench, socket or spintite, a 7/16" and 1/2" wrench or socket, tape measure. 1. Layout the boom sections as shown on Dimension Sheet and assemble with 8-32 x 1-3/4" screws, lockwashers and nuts. Tighten the nuts securely.
  • Page 3 6M7JHV ASSEMBLY MANUAL 8. Install the main feedline, or a pigtail section just to get to the middle of the boom. Tighten the Male 'N' connector carefully, and route the cable forward on the boom, securing it with the cable ties provided.
  • Page 4 6M7JHV ASSEMBLY MANUAL 17. INSTALLATION AND STACKING INFORMATION A. A mast or crossboom that is mounted to the boom in the element plane must be non conductive (fiberglass, etc). B. To protect your investment in this high performance antenna, always use high quality coax and connectors.
  • Page 5 6M7JHV DIMENSION SHEET...
  • Page 6 6M7JHV PARTS & HARDWARE DESCRIPTION QTY. Boom Section #1to #6 1 1/2 x .065 x 60" SOE Alum....6 Boom Section #7 1 1/2 x .065 x 26" plain. Alum......1 Element half, 3/8 x .049 x see DIMENSION SHEET ....14 Element Support Rod, 1/4 x 10”...