MFJ AutoTuner Extender -914 Manual

MFJ-914 AutoTuner Extender    
MFJ-914 AutoTuner Extender 

General Information:

Does your automatic antenna tuner have limited matching range? Can't
auto-tune your antenna on all bands? Do you have to pre-tune your
antenna with a manual tuner?
The MFJ-914 AutoTuner Extender     greatly extends your automatic
tuner's matching range. Now you can match nearly any antenna
automatically!
The MFJ-914 s a heavy duty, wide range impedence transforming
device. It has been carefully designed for the flattest frequency response
and the lowest loss.
MFJ's AutoTuner Extender     transforms your antenna impedence -- up
or down -- by as much as 10 times! The MFJ-914 puts nearly any
antenna into the matching range of your automatic tuner!
Extend your power range by transforming your antenna impedence so
your tuner can be used in a higher power Low-Q mode. The MFJ-914
also extends manual antenna tuners.
You can use any tranceiver from 160 through 10 meters with up to 300
watts.

Installation:

The MFJ-914 connects in-line between your transmitter and antenna.
Connect your transmitters antenna output to the SO-239 connector
labeled Transmitter, and your antenna to the Antenna connector. For
maximum protection of your tranceiver, a 50 Ohm dummy load should be
connected to the plug labeled Dummy Load, and the Ground stud
connected to a good RF ground.

Operation:

The MFJ-914 AutoTuner Extender is easy to use! First, bypass your
transmitters auto-tuner. Then, while transmitting at a low output power,
adjust the knob (from position A through G) on the MFJ-914 until you see
minimum SWR on your transmitter. Now you're ready to autotune. The
Off / Dummy Load position on the knob protects your tranceiver by
connecting it to an external dummy load, and by grounding your antenna
to bleed off static. The switch position D provides a through connection
from your transmitter to your antenna.
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