does not try to boost when below the Enable Low Limit and above the Input Low Limit check
the programming to insure the programming is correct.
Minimum Battery Voltage
According to battery manufacturers vehicle batteries are normally considered drained at 11.6V
with no load. Under load the voltage will be a little lower. Below about 9-10V the voltage will
drop fast with any load. The battery life may suffer and the vehicle may not start when the
battery is that low.
http://www.eetimes.com/author.asp?section_id=36&doc_id=1320644
Noise Reduction
Although every effort was made to reduce switching noise RF noise is a possibility. To reduce
noise to a minimum ground the case of the MFJ-4418 to the automotive chassis with as short of a
wire or grounding braid as possible. Clamp on ferrite beads can be used on the input and out
power leads to further reduce noise. 1 or 2 turns through the bead will help.
TECHNICAL ASSISTANCE
If you have any problem with this unit first check the appropriate section of this manual. If the
manual does not reference your problem or is your problem is not solved by reading the manual,
you may call MFJ Technical Service at 662-323-0549 or the MFJ Factory at 662-323-5869. You
will be best helped if you have your unit, manual and all information on your station handy so
you can answer any questions the technician may ask.
You can also send questions by mail to:
MFJ Enterprises, Inc.
300 Industrial Park Road
Starkville, MS 39759
by Facsimile (FAX) to 662-323-6551
or by email to
.
Send a complete description of your problem, an explanation of exactly how you are using your
unit, and a complete description of your station.
Available Accessories:
MFJ-4416BRC Remote Control
MFJ-5262 CAT5E cable
Radio Power Cables:
MFJ-5112, MFJ-5112M Yaesu, Kenwood, Icom VHF/UHF
MFJ-5535, MFJ-5535M Yaesu, Kenwood, Icom HF
MFJ-5538, MFJ-5538M Yaesu 4 pin HF
Содержание MFJ-4418
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Страница 17: ...Schematics Figure 11 SMPS Section Schematic...
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