RELM GPH-CMD Owner's manual

RELM Wireless
Technical Support
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GPH-CMD Operation and Programming

RELM Wireless
Technical Support
[phone]
www.relm.com
GPH-CMD Operation
Programmable Switches Twenty channels per group.
No-stop knob. Radio Beeps at
upper and lower channel
Transmit Indicate Busy Channel /Low Battery Indicate

RELM Wireless
Technical Support
[phone]
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GPH-CMD Operation
•Press and Hold FCN Key to
Lock or Unlock Keypad
•Radio beeps on key press
when locked
Keypad Lock
•If No Active Transmit or Receive
Frequency is programmed the Radio
will Display “DISABLED” and Emit an
Alert Tone
Empty Channels
•Receive Only Channels will Display
“No CH’ when attempting to Transmit
No Transmit Frequency
•With Scan Turned off press the ENT
Key to Add the Selected Channel to the
Scan List
•Press the CLR Key to Remove the
Channel From the Scan List
Edit Scan List

RELM Wireless
Technical Support
[phone]
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GPH-CMD Operation
•Press FCN Key to Scroll Programmed Functions
•Press PRI Key to Enable or
Disable the Displayed Function
•Factory Defaults: Repeater Talk-Around
and Multi-Group Scan
Keypad Function Select
•With Scan Turned off press the PRI Key to Set
the Selected Channel as Priority One Channel
Priority One Assignment
•Press and Hold the # Key to view the Current
Groups Label
View Group Label
•Press # Key
•Use Number Keys to Select Desired Group
•Enter New Group
Change Group

RELM Wireless
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GPH-CMD Pick List Operation
•Press FCN Key
•Press 1 Key
•Use PRI Key to Scroll Through the List or
Number Keys View Specific Tone
NOTE: This function may be disabled with the PC
Programming software
View Tone Setting
•Press and Hold FCN Key to Enter Program Mode
•Lear the Current Tone
•Use Number Keys to Select Desired Tone
•Enter New Tone
Edit Global Tone List
•Use Number Keys to Select a Transmit Code
Guard (1-32) from the Programmed Pick List
Note: Assigning a Transmit Code Guard to a
Channel Overrides User Select Operation
Pick List Tone Selection

RELM Wireless
Technical Support
[phone]
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GPH-CMD Command Operation
•Press the * Key to Add Current Channel to
Command Group
•Channel is Assigned to Next Available
Command Channel
Add Command Channel
•Press # Key Twice to Select Command Group
•Press Enter to Set Group
Selecting Command Group
•While operating in the Command Group Press *
Key to Remove the Current Channel from the
Command Group
Remove Command Channel

RELM Wireless
Technical Support
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GPH-CMD Command Operation
•A Long * Key Press Removes all Channels from
Command Group
•While Holding the * Key the Radio will Emit an
Alert Tone and Flash “Delete All”
•When Command Group is Empty a Lower Alert
Tone will Sound
Delete Command Group

RELM Wireless
Technical Support
[phone]
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GPH-CMD Programming
•Select Six Digit Password
•Press Enter Key
•Factory Default 000000
Enter Password
•Use FCN Key to Scroll Through Settings
Group Parameters
Group Options
•1-7 Reserved
•8- Add Group to Scan List
Group Label
•Clear Group Channel Label
•Use Number Keys to Select Desired Symbol
•Use FCN to shift left for next character
•Enter New Group Label

RELM Wireless
Technical Support
[phone]
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Programming Channel Settings
Channel Bandwidth
•Press the # key to toggle between wideband and
narrowband operation
Receive Frequency
•Press CLR to clear RX Frequency
•User the number keys to select desired frequency.
(136 to 174 MHz, 2.5kHz increments)
•Press the ENT key to set frequency
Receive Code Guard
•Press CLR to clear Code Guard
•User number keys to select desired frequency.
(67 to 255.9 Hz)
•Press ENT to set
•Press # key to enter Digital Coded Squelch

RELM Wireless
Technical Support
[phone]
www.relm.com
Programming Channel Settings
•Press CLR to clear RX Frequency
•User the number keys to select desired frequency.
(136 to 174 MHz, 2.5kHz increments)
•Press the ENT key to set frequency
•Press CLR to clear Code Guard
•User number keys to select desired frequency.
(67 to 255.9 Hz)
•Press ENT to set
•Press # key to enter Digital Coded Squelch
•Clear Channel Label
•Use Number Keys to Select Desired Symbol
•Use FCN to shift left for next character
•Enter New Label
Transmit Frequency
Transmit Code Guard
Channel Label