Related Manuals for MFJ MFJ-706
Summary of Contents for MFJ MFJ-706
- Page 1 Model MFJ-706 INSTRUCTION MANUAL CAUTION: Read All Instructions Before Operating Equipment MFJ ENTERPRISES, INC. 300 Industrial Park Road Starkville, MS 39759 USA Tel: 662-323-5869 Fax: 662-323-6551 COPYRIGHT 2009 MFJ ENTERPRISES, INC. VERSION 1A...
- Page 2 Instruction Manual Introduction The MFJ-706 is an all in one box built for the Icom IC-706 transceiver that allows it to become a emergency communication station. Just connect the antenna of your choice and a power source and you are ready to operate. The built in voltage conditioner allows full power SSB operation from limited power source such as a vehicle accessory plug.
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Page 3: Specifications
MFJ-706 EmComm Emergency Communications System Instruction Manual Features • Onboard 3/8 HF antenna mount for use with mobile antennas. • Coax connector for using external mounted antennas. • Front mounted antenna selector switch. • Independent tuner memories for each antenna port. - Page 4 IC-706. Apply maximum power only after tuning up. ● Do not transmit with a high SWR for extended periods of time. 1. The MFJ-706 comes pre-assembled at the factory for easy initial setup. You will need only a #2 Phillips screwdriver to mount your radio.
- Page 5 4. Slide the radio in place from the front of the MFJ-706. Make sure the rest of the connectors are pushed to the back of the unit so they do not interfere with the mounting of the radio.
- Page 6 Use this port when a remote or outside antenna will be connected using 50 ohm coaxial feedline. IC-706 tune button This button, although not located on the MFJ-706, is what controls the tuner operation. When the IC-706 is turned on, the tuner is powered up as well.
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Page 7: Antenna Memory
Instruction Manual Operation Using your IC-706 in the MFJ-706 will allow you much more versatility in where and when you operate. Powering your EmComm station can be done by connecting the power cord to an automobile accessory plug or an available power supply with an accessory plug on it. Connect your onboard or external antenna and select the appropriate port for that antenna. -
Page 8: Morse Code
L-network is properly tuned. These limits are built into the MFJ-706 to prevent matching of extreme load impedance outside the tuner’s specification, which may result in excess voltage and/or current across the tuner’s components. -
Page 9: Antenna System Hints
MFJ-706 EmComm Emergency Communications System Instruction Manual For safety, please use good DC and RF grounds. It is particularly important to have a good RF ground when using a single wire feeder. When using a single wire feeder, the tuner needs something to "push"... - Page 10 MFJ-706 EmComm Emergency Communications System Instruction Manual A problem also occurs on 40 meters with this same antenna example. The feedline is now a multiple of a half-wave (60 to 70 feet) and connects to a full-wave high impedance antenna (100 to 140 feet). The half-wave line repeats the high antenna impedance at the tuner.
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Page 11: Full 12-Month Warranty
MFJ Enterprises, Inc. warrants to the original owner of this product, if manufactured by MFJ Enterprises, Inc. and purchased from an authorized dealer or directly from MFJ Enterprises, Inc. to be free from defects in material and workmanship for a period of 12 months from date of purchase provided the following terms of this warranty are satisfied. - Page 12 MFJ-706 Manual 300 Industrial Park Road Version 1A Printed In U.S.A. Starkville, MS 39759...
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