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Date Posted by Category User IP

2012-10-30 (UTC)

KG4BOX

Tuners

MFJ 945E Mobile Turner

PRICE: US$75.00

I bought this turner for my personal use but I only used it 3 times on my base station. I decided to upgrade to a digital turner and then put this MFJ 945E on the box. It works perfectly and has no problems. As it has been sitting in the box for the last 13 months and the factory warranty had expired, this item is sold as it is and you have 14 days to return it. Within this period I'll refund 100% of your money but you will be responsible for shipping it back.
The MFJ-945E Mobile Tuner is a compact tuner designed for mobile operation in cars, trucks, RV's, and boats. Covering 1.8 to 30 MHz, it will match virtually any transmitter to almost any mobile whip antenna. It will also match almost any antenna for home station operation such as dipoles, inverted-vees, verticals, beams, random wires, and others fed by coax lines or single wire.

The MFJ-945E employs a cross-needle meter so forward power, reflected power, and SWR may be read simultaneously. The meter lamp can be powered by a 12Vdc, 300mA source, such as the MFJ-1312B for home-station operation. The meter lamp ON/OFF switch will activate the meter lamp. Use a 2.1mm coaxial plug with the center conductor of the plug connected to the positive and the sleeve connected to ground. Optional mobile mounting bracket (MFJ-20) is available.

Cross-Needle SWR/Wattmeter:

The MFJ-945E utilizes a cross-needle meter to read FORWARD power, REFLECTED power and SWR simultaneously in either HI (300 Watts) or LO (30 Watts) power ranges. Set the power range switch to HI or LO. Next read the FORWARD power on the Forward Scale. REFLECTED power is shown at the same time on the Reflected Scale. SWR is read by observing where the two needles cross. No SWR sensitivity adjustment needed to read SWR. The HI range is 300 Watts FORWARD and 60 Watts REFLECTED. The LO range is 30 Watts FORWARD and 6 Watts REFLECTED. The MFJ-945E is factory calibrated on the LO scale at 10Watts FORWARD and 2Watts REFLECTED, and on the HI scale at 100Watts FORWARD and 20Watts REFLECTED.

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