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BK Radio GBH Flex Mode, Owner'S Manual

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BK RADIO 

GBH Owner's Manual 

Time-Out Timer 

The transmit time-out timer limits the duration of calls and guards against 
accidentally locking on the transmitter and tying up the radio system. 
Your dealer can program the duration of the time-out timer (15-225 
seconds, or disabled). 

Busy Channel 

If the radio has been programmed for busy channel operation, it will 
operate in one of the following three modes: 

Busy Channel Indication 

Busy Channel Lockout 

Busy Channel Lockout Override 

Busy Channel Indication 

The yellow Busy Channel indicator illuminates if there is carrier activity 
on the selected channel. If the selected channel is a Code Guard 
channel and the proper Code Guard value is not detected, the Busy 
Channel indicator remains on for the duration of the carrier activity and 
no message is heard. During Scan and Priority Scan operation, the Busy 
Channel indicator illuminates when activity is detected on any channel on 
the scan list. 

When scanning or priority scanning Code Guard channels and activity 
has been detected, the Busy Channel indicator illuminates for the time 
period necessary to determine if the proper Code Guard value has been 
received, causing the Busy Channel indicator to flash at various rates. 

Busy Channel Lockout 

The busy channel lockout feature applies only to those channels 
programmed for receive Code Guard operation. When carrier activity is 
detected on the channel selected, the radio checks the receive Code 
Guard value. If the proper Code Guard value is present, the radio can 
transmit on that channel. 

If the radio detects an incorrect value or carrier activity only, the 
transmitter is disabled, an alert tone is heard, and the display shows the 
word BUSY when the PTT switch is pressed, whether the CG button is 
on or off. 

Channels not programmed for receive Code Guard operation can be 
used to transmit regardless of carrier activity. 

 

GBH RADIO CONTROLS 

 

BK RADIO

 

SCN

 

PRI

 

GRP

 

SQL

 

MON

 

VOL

 

OFF -

CH

 

GMH

 

Transmit 
Indicator

 

Priority 
Busy Channel 
Light

 

Function Button

 

On/Off Indicators

 

Display Dimming 
Sensor

 

Function Buttons

 

Channel 
Knob

 

On/Off

 

Volume Knob

 

Microphone

 

Connector

 

 

 

BUTTON FUNCTIONS 

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 front 
mounted push button that is active. The five push buttons can be 
programmed with the following functions:  

MON 

Monitor Squelch 
Noise 

TA 

Repeater Talk 
Around 

GSC 

Group Scan 

SCN 

Channel Scan 

CG 

Code Guard 
Disable 

 

 

PRI 

Priority Scan 

HOM 

Home Channel 

 

 

GRP 

Group Select  

NXT 

Next Scan 
Channel 

 

 

SQL 

Squelch Adjust  

LPW 

Low Power 
Select 

 

 

 

 

 

 

 

 

 

BUTTON FUNCTION MENU 

If a keypad microphone is used with the GBH radio, many of the 
functions above may also be enabled/disabled with the keypad [FCN] 

16 

5 

Summary of Contents for GBH Flex Mode

Page 1: ...Mode Base Station Owner s Manual Copyright 2000 RELM Wireless Corp Inc All rights reserved P N 7001 30928 901 08 01 BK Radio 7100 Technology Drive West Melbourne FL 32904 Telephone 800 648 0947 FAX 321 984 0434 ...

Page 2: ...le BK Priority Scan 12 User Selected Code Guard 14 Group Scan 14 Other Operational Features 15 Alphanumeric Display Features 17 LZA2027 Option Installed 18 Service 20 INTRODUCTION The GBH 01 includes a power supply an internal front mounted 5 watt speaker a rugged metal outer case and a powerful GMH Series mobile radio The BK Radio GMH Flex Mode Series mobile VHF radio uses a microprocessor core a...

Page 3: ...ps that are added or deleted in the Group Scan list must be made at the keypad of the radio Adding or deleting of Groups in the scan list cannot be made by the remote See page 8 of this manual for instructions to add or delete groups in the scan list Channel Scan ON OFF This feature must be programmed into the LZA2027 Some remotes have an auxiliary button or a designated Scan button that can be as...

Page 4: ... be programmed into the LZA2027 Some remotes have an auxiliary button that can be assigned to turn the Group Scan function ON and OFF See page 14 of this manual for an explanation of the feature SELECT A CHANNEL by turning the Channel Selector knob After reaching the highest number the radio wraps to Channel 1 The display can show channel numbers numeric mode channel labels alphanumeric mode or re...

Page 5: ...ton and turning the Channel Selector knob Press the GRP button again to return to channel select mode See GRP on page 6 SELECT A CHANNEL by turning the Channel Selector knob After reaching the highest number the radio wraps to Channel 1 Busy Channel Lockout Override This mode operates in the same manner as busy channel lockout except that the user can override and transmit by pressing the CG butto...

Page 6: ...e applies only to those channels programmed for receive Code Guard operation When carrier activity is detected on the channel selected the radio checks the receive Code Guard value If the proper Code Guard value is present the radio can transmit on that channel If the radio detects an incorrect value or carrier activity only the transmitter is disabled an alert tone is heard and the display shows ...

Page 7: ...tton for Group Select mode Turn the Channel OTHER OPERATIONAL FEATURES The BK Radio G Series radio is based on a microprocessor core that allows extra features and operational characteristics to be programmed into the radio Your dealer can help define the best operational settings for your system and program them into the radio Scan Delay Scan delay lets the radio receive a response to a transmiss...

Page 8: ...d Code Guard Nuisance Channel Delete Selector knob to select a group Return to Channel Select mode by waiting 5 seconds or by pressing the GRP button one time numeric mode or two times alphanumeric mode After selecting a group in alphanumeric mode press the GRP button one time to display the group label and a second time to return to Channel Select mode SQL Squelch Adjust Press the SQL button to t...

Page 9: ...priority channel when Priority Scan is on Once activity has ceased on the priority channel the radio returns to the receive channel on the Channel Selector knob With Priority Scan and Channel Scan on the radio scans until it locks on to an active channel The radio continues to sample the priority channel while listening to the active channel If activity occurs on the priority channel the radio ove...

Page 10: ...annel while listening to the active scan channel If activity occurs on the priority channel the radio overrides the active scan channel changes to the priority channel and holds for the duration of the transmission SCAN OPERATION RECEIVE Scan operates only while the radio is not transmitting The radio checks for signals on channels in the preset scan list as well as the channel selected by the Cha...

Page 11: ...n the PR annunciator illuminates and the display flashes SCN alphanumeric mode or two flashing bars numeric mode If a message is received on a priority channel the Priority indicator illuminates and the radio receiver locks onto that channel for the duration of the transmission unless a higher priority channel interrupts Priority Scan can be used in combination with Code Guard with Priority Scan o...

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