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General| Channels | 16 |
|---|---|
| Type | Two-way radio |
| Frequency Range | VHF: 136-174 MHz; UHF: 403-470 MHz |
| Battery | Li-Ion |
| Display | No |
Details the various controls and functions of the radio.
Explains how radio buttons can be programmed for various functions.
Details the function and character cycle of the keypad keys on GP280 models.
Describes the function of softkeys and navigation keys for GP280 radios.
Explains the radio's menu display and how it presents information.
Details the radio's LCD screen layout and the meaning of its icons.
Provides information on the audible tones generated by the radio for operating conditions.
Details battery types, charging, care, and tips for optimal performance and longevity.
Information on how to recycle or dispose of used batteries.
Instructions on how to charge the radio's battery using the charger.
Step-by-step guide on how to attach the battery to the radio.
Step-by-step guide on how to remove the battery from the radio.
Instructions on how to properly attach the radio's antenna.
Instructions on how to properly remove the radio's antenna.
Guide on how to attach the belt clip to the radio.
Guide on how to remove the belt clip from the radio.
Instructions on how to attach the protective dust cover to the radio.
Explains how to select the desired zone and mode for radio operation.
Describes the alert tone indicating a low battery condition.
Explains Tone PL, Digital PL, and carrier squelch operation.
Details the radio's ability to operate at different RF power levels.
Explains the failsoft system for maintaining communications during trunked system failures.
Instructions on how to mute or unmute the radio's keypad tones.
Instructions on how to receive calls on the radio.
Details how to make calls in conventional and trunked modes.
Instructions on how to view your radio's unique ID number.
Details the enhanced private call feature for secure and verifiable conversations.
Guide on how to answer an incoming private call.
Step-by-step process for initiating and conducting a private call.
Instructions on how to leave a call alert page if the party is unavailable.
Details on how to send and receive call alerts, including answering group call alerts.
Instructions for programming telephone and call lists on GP280 radios.
Guide to changing telephone numbers assigned to list members.
Instructions for changing radio ID numbers assigned to the call list.
Guide on how to answer an incoming telephone call on the radio.
Step-by-step guide for making a telephone call using the radio.
Explains the AMSS feature for extending communication reach across multiple trunked sites.
Instructions on how to manually force the radio to change to a new site.
Guide on how to lock or unlock the radio to a specific site.
Explains the repeat and direct operation modes for radio communication.
Details the Smart PTT feature for enhanced operator control and transmission management.
Explains how to monitor activity on different modes by scanning a programmed list.
Instructions on how to enable or disable scan mode using the radio's keypad.
Guide on temporarily deleting unwanted modes from the scan list.
Instructions on how to view the members of the scan list for a selected mode.
Details how to program members into the radio's scan list.
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