Magnum S9 Installation Instructions
Magnum S-9 Installation Info:

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Congratulations on your purchase of a Magnum S-9 AM/FM/SSB 10 meter transceiver.  Your Magnum
S-9 is designed to provide years of enjoyment and trouble-free service. There are many features and
functions designed into this transceiver. To ensure that your investment is enjoyed to its fullest extent
please take a few
moments and thoroughly read this manual.
Your Magnum S-9 is a combination microprocessor and phase-lock loop (PLL) controlled radio
both high RF performance with a user-friendly front panel. The Magnum S-9 is built rugged to
years of use in harsh mobile environments. Although engineered with mobile use in mind the
Magnum S-9,
with the addition of a high quality 10 amp regulated power supply, may be easily adapted to fixed
IMPORTANT: The Magnum S-9 is designed for entry level amateur use. If the transmitter is operated
in the
United States or within it’s territories a licensed amateur radio operator must be present at the
station. The
minimum license class to operate 10-meter phone is Novice/Technician. If you are studying for your
and want to familiarize yourself with the operation of the radio, the receiver may be operated with or
without a
licensed operator present. For more information regarding FCC licensing, contact your nearest
amateur radio
dealer, or for complete details contact the American Radio Relay League.
American Radio Relay League (ARRL)
225 Main Street
Newington CT 06111
Telephone 860-594-0200
Facsimile 860-594-0259
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Magnum International warrants this product to be free of defects for a period of one (1) year from the
date of purchase. This warranty is non-transferable. This limited warranty is subject to repair or
replacement of
defective components only. This warranty is void if the radio has been tampered with or misused.
The enclosed warranty registration form must be filled out and mailed along with a photocopy of your
receipt within 15 days from the purchase date. If the warranty registration form and copy of your sales
are not received the radio is not covered under warranty. Please fill out the enclosed warranty
registration form
and send it along with a copy of your sales receipt to:
Magnum International
PO Box 445
Issaquah WA 98027
Registering your Magnum S-9 with Magnum provides several benefits:
1) Validates your warranty.
2) Entitles you to free updates and information regarding your radio and new accessories for your
3) Provides possible recovery of lost or stolen radios through our serial number tracking database.
Copyright © 2004 by Magnum International. All rights reserved.
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1. Contents
Unpack and inspect your Magnum S-9 for missing or
damaged components. Your Magnum S-9 includes the
following items:
Quantity Description
1 Magnum S-9 Transceiver
1 Dynamic Microphone
1 DC Power Cord with Inline Fuse
1 Mounting Bracket with Hardware
1 Microphone Hanger with Hardware Set
1 Operating Manual with Schematic
1 Warranty Registration Form
2. Microphone Hanger
The microphone hanger may be attached to the side of
the transceiver, or any other convenient location. Locate
the mounting holes on the side of the transceiver.
Use the provided screws to attach the microphone hanger
either vertically or horizontally to the side of the transceiver.
3. Mounting
When attaching the Magnum S-9 mounting bracket to
the vehicle, choose a location that will provide easy access
to all front panel controls and air circulation to the
rear panel. When selecting a mounting location, make
sure that there is ample space behind the unit for the
cables. Do not pinch, or bend sharply, the power or
antenna cables. Do not install the Magnum S-9 in any
compartment that restricts airflow and do not install in a
location that interferes with the safe operation of the
Attach the mounting bracket to the vehicle first then
mount the Magnum S-9 to the bracket. If the rear panel
is not accessible you may want to attach the power
and antenna cable prior to mounting.
4. Electrical Connections
The Magnum S-9 is designed to work on any 12 - 14.1
volt DC, negative ground, source. The condition of a
vehicle’s electrical system can affect operation. A low
battery, worn generator/alternator, or poor voltage regulator
will seriously impair the performance of the transceiver.
Any of the above conditions could result in a high
level of receiver noise generation or a substantial loss of
the transmitter’s RF output. Make sure that all of these
components of your vehicle’s electrical system are in
good condition prior to installing the transceiver.
Before making any electrical connections make sure
the volume (VOL) control is in the “OFF” position. Connect
the positive (+) red wire of the DC power cord to a
positive 13.8 volt source at the vehicle fuse block. If
connecting to the fuse block, it is recommended that a
switched power source is used so that the power to the
transceiver is disconnected when the vehicle is off. This
will eliminate the possibility of the transceiver draining
the vehicle’s battery.
Connect the negative (-) black wire to a metal part of the
vehicle’s frame, or chassis ground. Make sure that this
is a good ground connection.
The Magnum S-9 power cord may also be connected
directly to the battery. Connecting directly to the battery
has several benefits, the first of which is to maximize
RF output. Secondly, the battery is a very large
capacitor and will help eliminate certain types of ambient
and vehicle noise. If connecting directly to the
vehicle’s battery, additional power cable may be required.
On runs of 8 feet or less use 14-gauge stranded wire.
Use 12-gauge wire on longer runs.
5. Antenna Connection
The transceiver will operate using any standard 50-ohm
ground-plane, vertical, mobile whip, long wire or similar
antenna. The antenna should be rated at 50 watts PEP
minimum. A standard SO-239 type antenna connector
is located on the rear panel of the Magnum S-9. Connection
is made using a PL-259 and high-grade coaxial
cable (RG213, RG58A/U or Mini RG-8 is recommended).
A ground-plane antenna provides greater coverage and
is recommended for fixed station-to-mobile operation.
For point-to-point fixed station operation, a directional
beam antenna operates at greater distances even under
adverse conditions. A non-directional antenna should
be used in a mobile installation; a vertical whip is best
suited for this purpose. The base loaded whip antenna
normally provides effective communications. For greater
range and more reliable operation, a full quarter wave
whip may be used. Either of these antennas uses the
metal vehicle body as a ground plane.
Once the antenna is mounted on the vehicle, route the
coaxial cable so that it is not next to any power cables
or vehicle cables. Connect the PL-259 to the antenna
connector on the rear panel of the Magnum S-9. Make
sure that the cable does not interfere with the safe operation
of the vehicle.

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Magnum S9 Installation Instructions