BK Radio GMH Plus Owner's Manual
GMH Plus Owner’s Manual 1
TABLE OF CONTENTS
FCC Requirements 2
Safety Precautions 2
RF Energy Exposure Awareness And Control Information 3
Radio Controls 6
Basic Operation 6
Channel Guard Operation 7
Channel Groups 8
Programmable Push Buttons/ Microphone FCN Key Menu 9
Scan Operation 12
Priority Scan 14
User Selected Channel Guard 18
Other Operational Features 18
Alphanumeric Display 21
Denitions And Acronyms 23
Programming Notes 24
2 RELM/BK Radio
INTRODUCTION
This section contains information concerning the operational procedures
for BK Radio GMH Plus Flex•Mode mobile radios. BK Radio Flex•Mode
radios are deigned to operate on both 12.5 kHz and 25 kHz analog
radio systems. GMH Plus features include 400 channels with an
operating frequency of 136-174 MHz. Please take a moment to read the
information in this manual so you can get optimum performance from
your new radio.
FCC REQUIREMENTS
Your radio must be properly licensed by the Federal Communications
Commission prior to use. Your BK Radio dealer can assist you in meeting
these requirements. Your dealer will program each radio with your
authorized frequencies, signaling codes, etc., and will be there to meet
your communications needs as your system expands.
SAFETY PRECAUTIONS
Do not operate the transmitter in close proximity •
to blasting caps.
Do not operate the radio in an explosive atmo-•
sphere (petroleum fuels, solvents, dust, etc.).
Do not operate the transmitter if a person out-•
side the vehicle is less than three feet from the
antenna or touching the antenna.
GMH Plus Owner’s Manual 3
RF ENERGY EXPOSURE AWARENESS AND CONTROL
INFORMATION, AND OPERATIONAL INSTRUCTIONS FOR FCC
OCCUPATIONAL USE REQUIREMENTS
BEFORE USING YOUR MOBILE 2-WAY RADIO, READ THE
INFORMATION BELOW WHICH CONTAINS IMPORTANT OPERATING
INSTRUCTIONS FOR SAFE USAGE AND RF ENERGY AWARENESS
AND CONTROL INFORMATION FOR COMPLIANCE WITH RF
ENERGY EXPOSURE LIMITS IN APPLICABLE NATIONAL AND
INTERNATIONAL STANDARDS.
NOTICE: This radio is intended for use in occupational/controlled
conditions, where users have full knowledge of their exposure and can
exercise control over their exposure to meet FCC limits. This radio device
is NOT authorized for general population, consumer, or any other use.
This 2-way radio uses electromagnetic energy in the radio frequency (RF)
spectrum to provide communications between two or more users over a
distance. It uses radio frequency (RF) energy or radio waves to send and
receive calls. RF energy is one form of electromagnetic energy; other forms
include, but are not limited to, sunlight and x-rays. RF energy, however,
should not be confused with these other forms of electromagnetic energy,
which when used improperly, can cause biological damage. Very high
levels of x-rays, for example, can damage tissues and genetic material.
Experts in science, engineering, medicine, health and industry work
with organizations to develop standards for exposure to RF energy.
These standards provide recommended levels of RF exposure for both
workers and the general public. These recommended RF exposure
levels include substantial margins of protection. All 2-way radios are
designed, manufactured, and tested to ensure they meet government
established RF exposure levels. In addition, manufacturers also
recommend specic operating instructions to users of 2-way radios.
These instructions are important because they inform users
about RF energy exposure and provide simple procedures on
how to control it. Please refer to the following websites for more
information on what RF energy exposure is and how to control your
exposure to assure compliance with established RF exposure limits.
http://www.fcc.gov/oet/rfsafety/rf-faqs.html
http://www.osha.gov/SLTC/radiofrequencyradiation/index.html
4 RELM/BK Radio
FEDERAL COMMUNICATIONS COMMISSION REGULATIONS
The FCC rules require manufacturers to comply with the FCC RF energy
exposure limits for mobile 2-way radios before they can be marketed in the
U.S. When 2-way radios are used as a consequence of employment, the
FCC requires users to be fully aware of and able to control their exposure to
meet occupational requirements. Exposure awareness can be facilitated
by the use of a product label directing users to specic user awareness
information. Your BK Radio 2-way radio has an RF exposure product label.
Also, your BK Radio owner’s and service manuals include information and
operating instructions required to control your RF exposure and to satisfy
compliance requirements.
COMPLIANCE WITH RF EXPOSURE STANDARDS
Your BK Radio 2-way radio is designed and tested to comply with a number
of national and international standards and guidelines (listed below) for
human exposure to radio frequency electromagnetic energy. This radio
complies with the IEEE and ICNIRP exposure limits for occupational/
controlled RF exposure environment at operating duty factors of up to 50%
talk-50% listen and is authorized by the FCC for occupational use only. In
terms of measuring RF energy for compliance with the FCC exposure
guidelines, your radio antenna radiates measurable RF energy only while
it is transmitting (during talking), not when it is receiving (listening) or in
Standby Mode.
Your BK Radio 2-way radio complies with the following RF energy exposure
standards and guidelines:
United States Federal Communications Commission, Code of •
Federal Regulations; 47 CFR §§ 1.1307, 1.1310, 2.1091 and
2.1093
American National Standards Institute (ANSI) / Institute of •
Electrical and Electronic Engineers (IEEE) C95. 1-1992
Institute of Electrical and Electronic Engineers (IEEE) C95.1-•
1999 Edition
•
INDUSTRY CANADA COMPLIANCE
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numerique de la classe B est conforme à la norme NMB-003
Canada.
GMH Plus Owner’s Manual 5
RF EXPOSURE COMPLIANCE AND CONTROL GUIDELINES AND
OPERATING INSTRUCTIONS
To control exposure to yourself and others and to ensure compliance with
the RF exposure limits, always adhere to the following procedures.
Guidelines:
User awareness instructions must accompany device when •
transferred to other users.
Do not use this device if the operational requirements described •
herein are not met.
Operating Instructions:
Transmit no more than the rated duty factor of 50% of the •
time. To transmit (talk), push the Push-To-Talk (PTT) button. The
red LED will illuminate when the radio is transmitting. To receive
calls, release the PTT button. The red LED will extinguish when
the radio stops transmitting. Transmitting 50% of the time, or
less, is important because this radio generates measurable RF
energy exposure only when transmitting (in terms of measuring
for standards compliance).
Transmit only when persons around the vehicle are at least •
3 feet (90 centimeters) away from the vehicle with a properly
installed antenna. This separation distance will ensure that
there is sufcient distance from a properly installed (according
to installation instructions) externally-mounted antenna to satisfy
the RF exposure requirements in the standards listed above.
CONTACT INFORMATION
For additional information on exposure requirements or other information,
visit website http://www.relm.com.
6 RELM/BK Radio
RADIO CONTROLS
BASIC OPERATION
RECEIVE
Turn power on by pushing and releasing the Volume knob. The 1.
radio will beep, indicating that it has passed its self test and is
operational.
Set volume by pressing the 2. [MON] button to hear squelch noise.
Turn the Volume 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 3. [GRP]
button and turning the Channel Selector knob. Press the [GRP]
button again to return to Channel Select mode.
Select a channel by turning the Channel Selector knob. When 4.
the unstopped channel selector is rotated past the highest (16th)
channel, the radio will emit a beep and remain on the highest
channel. When rotated past the lowest (1st) channel, the radio
will emit a beep and remain on the lowest channel.
The display can show channel numbers (Numeric Mode), channel labels
(Alphanumeric Mode), or receive and transmit frequencies. 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.
BK RADIO
SCN
PRI
GRP
SQL
MON
VOL
OFF -
CH
GMH
Transmit Indicator
Priority Indicator
Busy Channel Light
Function Button
On/Off Indicators
Display Dimming Sensor
Function Buttons
Channel Selector
Knob
On/Off
Volume Knob
Microphone
Connector
GMH Plus Owner’s Manual 7
TRANSMIT
Press the PTT (Push-To-Talk) switch on the microphone. The TX 1.
annunciator appears on the display and the red Transmit indicator
illuminates while the PTT is pressed.
Talk in a normal voice with the microphone approximately one to 2.
two inches from your mouth.
Release the PTT switch to stop transmitting.3.
If the TX annunciator does not appear and a tone is heard, you are on
a receive-only channel or the channel is busy (if Busy Channel Lockout
is enabled). Turn the Channel Selector knob to an authorized transmit
channel or wait until the channel is clear (if Busy Channel Lockout is
enabled).
If the length of your transmission exceeds the preset Time-Out Timer
setting, the transmitter automatically shuts off and a tone sounds. To
continue the transmission, release the PTT switch, then press it again
and continue talking.
CHANNEL GUARD OPERATION
Channel Guard allows one radio or group of radios to be selectively
called within a system. If the radio has been programmed with Channel
Guard, use the following receive and transmit instructions.
SQUELCH CONTROL
Sub-audible signaling (CTCSS/CDCSS) is used to allow a group of
radios to be selectively called in a system. Programming the receive
guard equal to zero allows for Carrier Squelch operation, where the
radio will unmute whenever a carrier is detected.
CHANNEL GUARD RECEIVE
Turn power on by pushing and releasing the Volume knob. The 1.
radio will beep, indicating that it has passed its self test and is
operational.
Set volume by pressing the 2. [MON] button to hear squelch noise.
Turn the Volume 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 3. [GRP]
button and turning the Channel Selector knob. Press the [GRP]
button again to return to Channel Select mode.
Loading...