Bk Radio EMH User Manual
EMH
Mobile Radio
Owner's Manual
TABLE OF CONTENTS
Introduction.................................................................................. 1
Basic Ope ra tio n........................................................................... 2
Code Guard Operation................................................................. 3
EMH Ra di o Co nt r ol s.................................................................... 4
Button Functions......................................................................... 4
Built-in Fe at ur es ......................................................................... 7
Keypad Microphone Operation.................................................... 8
Channel Scan.............................................................................. 10
Priority Scan................................................................................ 11
Busy Channel.............................................................................. 13
Installation.................................................................................... 14
Service......................................................................................... 16
INTRODUCTION
The Bendix/King EMH radio utilizes a microprocessor core allowing
features and performance previously unavailable in a mobile radio. It
features a 38 MHz operating frequency spread, computer
programmability, alphanumeric display, compact size, and built-in
CTCSS/CDCSS. Please take a moment to acquaint yourself with the
information in this manual to assure optimum performance from the radio.
FCC REQUIREMENTS
The EMH radio must be properly licensed by the Federal
Communications Commission prior to use. Your Bendix/King dealer can
assist you in meeting this requirement.
SAFETY PRECAUTIONS
A. Do not operate the transmitter in close proximity to blasting caps.
B. Do not operate the radio in an explosive atmosphere (petroleum fuels,
solvents, dust, etc.).
C. Do not operate the transmitter if a p erson outside t he vehi cle is with in
two feet of the antenna or touching the antenna.
D. Do not install the radio in a closed compartment that contains an LP
gas container or its fittings.
E. The radio must be properly grounded.
F. The equipment must be installed and serviced by a qualified technician.
EMH Owner’s Manual 1
BASIC OPERATION
RECEIVE
TURN POWER ON by rotating the OFF-VOL knob clockwise past the Off
detent.
SET VOLUME by pressing the MON button to hear squelch noise. Rotate
the OFF-VOL knob to set a comfortable volume level. Press the MON
button again to stop squelch noise.
SELECT A CHANNEL GROUP (if applicable) by pressing the GRP button and
rotating the Channel Select knob. Press the GRP button again to view the
group label (alphanumeric mode). Press the GRP button one more time or
allow to time out to return to channel select mode. See "GRP" on page 6.
SELECT A CHANNEL by rotating the Channel Select knob. After reaching
the highest channel number, the radio wraps to channel 1.
THE ALPHANUMERIC DISPLAY shows either channel numbers (numeric mode)
or channel labels (alphanumeric mode). The display mode and channel
labels are programmed by the technician along with group labels (if
applicable) and channel frequencies. The display shows slightly different
indications during Channel Scan and Priority Scan operation in
alphanumeric and numeric modes. See the illustrations on pages 10 and
11.
TRANSMIT
PRESS THE PTT (Push To Talk) switch on the microphone. The TX
annunciator appears on the display and the red Transmit Indicator glows
while the PTT switch is pressed. Talk in a normal voice with the microphone
approximately 1 to 2 inches from your mouth. Release the PTT s witc h to
stop transmitting.
If the TX annunciator does not appear and a tone is heard, you are on a
receive-only channel or the channel is busy (only if Busy Channel Lockout
is installed). Turn the Channel Select knob to an authorized transmit
channel or wait until the channel is clear (if Busy Channel Lockout is
installed).
If the length of your message exceeds the preset time out timer
setting, the Transmitter automatically shuts off and a tone is heard. To
continue the transmission, release the PTT switch, then press it again and
continue talking.
2 RELM/BK Radio
CODE GUARD™ OPERATION
Code Guard™ allows one radio or group of radios to be selectively called
within a system. If your radio has been programmed with Code Gu a r d , u s e t h e
following receive and transmit instructions. Also see "CG" on page 6.
CODE GUARD RECEIVE
TURN POWER ON by rotating the OFF-VOL knob clockwise past the Off detent.
SET VOLUME by pressing the MON button to hear squelch noise. Rotate the
OFF-VOL knob to set a comfortable volume level. Press the MON button
again to stop squelch noise.
SELECT A CHANNEL GROUP (if applicable) by pressing the GRP button and
rotating the Channel Select knob. Press the GRP button again to return to
channel select mode. See "GRP" on page 6.
SELECT A CHANNEL by rotating the Channel Select knob. After reaching the
highest channel number, the radio wraps to channel 1.
PRESS THE CG BUTTON to disable or enable Code Guard operat ion. An arrow on
the display points to the CG button when Code Guard is disabled. When
Code Guard is enabled, a message is heard only when the proper Code
Guard is received.
CODE GUARD TRANSMIT
MONITOR THE CHANNEL, before transmitting on Code Guard channels, by lifting
the microphone off hook or pressing the MON button. Listen to th e c ha nnel for
a few seconds to ensure that no communications are occurring on the
channel.
PRESS THE PTT (Push To Talk) switch on the microphone. Talk in a normal
voice with the microphone approximately 1 to 2 inches from your mouth.
Release the PTT switch to stop transmitting.
HANG UP THE MICROPHONE when finished. If you pressed the MON button to
monitor the channel, press it again after the transmission to return to Code
Guard operation.
Code Guard is a trademark of BK Radio, Inc.
EMH Owner’s Manual 3
EMH RADIO CONTROLS
y
r
On/O
cators
Transmit Indicator
Priority Indicator
Bus
Channel Indicato
Microphone
Connector
On/Off
Volume Knob
BUTTON FUNCTIONS
Channel
Select
Knob
Display Dimming Sensor
Function Button
ff Indi
Function
Buttons
When the radio is installed, labels are placed on the front push buttons to indicate
their functions. An arrow on the display points to each button that is active.
The buttons can be progra mmed with the following functions:
Monitor Squelch Noise
MON
Channel Scan
SCN
Priority Scan
PRI
Public Address
PA
Group Select
GRP
TA
CG
HOM
SPK
NXT
ACC
Repeater Talk Around
Code Guard Disable
Home Channel
Remote Speaker
Next Scan Channel
Accessory
Transmit Indicator
Each of these controls is described in the following sections.
4 RELM/BK Radio
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