M2 2M HO LOOP Manual

Also see for 2M HO LOOP: Assembly manual

Contents

specifications

M2 2M HO LOOP Manual Manual pdf 1 page image

M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com©2018 M2 Antenna Systems Incorporated 7/16/18REV AM2 Antenna Systems, Inc.Model No: 2M HO LOOPModel ......................................... 2M HO LOOPFrequency Range....................... 144 To 144.5 MHzGain, Typical @ 10 ft.................. 4 dBd @ 10 deg.Gain, 2 STK @ 82” & 132” ......... 8 dBd @ 9 deg.Polarity ....................................... Horizontal OmniImpedance ................................. 50 ohms, unbalancedPower Handling. ......................... 800W, 1.5 kW for StackFeed Connector………………….SO– 239Mounting………………………….3/8-24Vehicle Mounting height………...18” or moreStacking Separation ...................36” to 50”Wind Area ...................................0.025 sq. ft.Weight……………………………..14 oz.FEATURES:For quick and easy communications up to 200 miles or more, the new 2M HO LOOP provides an omnidirectional, HORIZON-TALLY polarized signal ideal for mobile and base operations on sideband and CW. Horizontal polarity permits a single HO loop to pickup 4+dB of ground gain that verticals can't. As with most horizontally polarized antennas, performance improves dramatically withheight above ground. By stacking two HO LOOPS, another big gain jump occurs. HO LOOPS do not need a counterpoise, so mountingoptions are simplified. Mounting 18” high, in the middle of a vehicle roof produces 2 dBd gain in a ball pattern upward for LEO satelliteand modest terrestrial operation.Physically, the 2M HO LOOP is a 11.25” square loop, fabricated from two 3/8” dia. aluminum tubes to minimize losses. The sealedfeed block provides weather protection with minimum wind drag. The heart of this unique design is the shorted stub matching to a 50ohm coax feedline. Mounting is via a single 3/8" hole (standard mobile mounting hardware size).For more performance, try the HO LOOP-STACK KIT: INCLUDES: phasing lines, “T” junction block, upper and lower 1/2 “ and 5/8”mast sections. For easy base-station installation use the optional wall / mast mounting bracket and U-bolts. For a powerful mobile sig-nal, stack and array of HO LOOPs on our optional “BIG FOOT”, mag-mount ( shown above). Use the optional 5” magnet and 18” mastfor single band mobile operation.SPECIFICATIONS:*Subtract 2.14 from dBi for dBd