MFJ MFJ-2014 Instruction Manual

INSTRUCTION MANUAL

COPYRIGHT 2009 MFJ ENTERPRISES, INC.

Model MFJ-2014

CAUTION: Read All Instructions Before Operating Equipment

MFJ ENTERPRISES, INC.

VERSION 1A

300 Industrial Park Road

Starkville, MS 39759 USA

Tel: [phone] Fax: [phone]

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MFJ-2014 Instruction Manual DualBand OCFD 75/40 meters

DISCLAIMER

Information in this manual is designed for user purposes only and is not
intended to supersede information contained in customer regulations, technical
manuals/documents, positional handbooks, or other official publications. The
copy of this manual provided to the customer will not be updated to reflect
current data.

Customers using this manual should report errors or omissions,
recommendations for improvements, or other comments to MFJ Enterprises, 300
Industrial Park Road, Starkville, MS 39759. Phone: [phone]; FAX:
[phone]. Business hours: M-F 8-4:30 CST.

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MFJ-2014 Instruction Manual DualBand OCFD 75/40 meters

MFJ-2014 Dual-Band

Off-Center Fed Dipole

for 75/40 meters

Introduction

Thank you for purchasing the MFJ-2014 OCFD. The 75/40-meter OCFD
combines a potent 40-Meter DX array with a top performing 75-meter
half-wave dipole and allows you to enjoy the convenience of operating on
the two bands with top performance on both.

Installing Feedline

Use any good quality 50-ohm coaxial cable capable of handling the
maximum amount of power you intend to run. Losses are minimal at 40
and 80 meters, so a lighter weight cable such as RG-58 or RG8X may be
used for power levels up to several hundred watts safely. However, if
your amplifier runs maximum legal power, or if you plan to mount the
antenna an extended distance from your operating location, a heavier
RG-8 style cable is recommended. No external balun is needed at the
feedpoint – one is already built into the Match-Maker network (for some
installations, you may choose to install a second in-line current choke
such as the MFJ-915 where the coax enters your building to eliminate RF
induced onto the cable along its run). The coax connection at the feed
block should be protected against water incursion with Coax-Seal or a
high-quality water-sealing tape.

Installation

At 122 feet in length, the MJ-2014 may be installed in place of your
present 75-meter dipole. Mount it at conventional residential heights (35­70 feet) for best results. If a high support is available near the feedpont,
holes are provided on the feed block for installing a halyard to reduce sag
(see below).

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