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Keypad Volume Down Key Up Key Accessory Connector Side Key 3 (SK3)* Back Key USB Type-C Port HP36X/HP28X: Top Key (TK)* On-Off Key Strap Hole HP31X/HP21X: On-Off Key Antenna Down Key Belt Clip LED Indicator Contact Key Battery...
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Part Name Part Name Part Name Speaker P1 Key Charging Contacts For details about the programmable keys (*), contact your dealer. Figures in this guide are only for reference.
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Use the charger to charge the battery alone or the battery attached to the radio. This method applies only to HP36X, HP31X, and HP28X. The LED indicator on the charger shows the charging status. For details, check the label on the bottom of the charger.
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To keep the audio quality, keep your mouth 2.5 centimeters to 5 centimeters away from the microphone. 2.6.1 Initiating a Call on Digital Channel This feature is available only for HP36X and HP31X. Rotate the Channel Selector knob to select the digital channel, and then press and hold the PTT key.
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Glows green for 2 seconds The battery power is high. Glows orange for 2 seconds The battery power is medium. Available only for HP31X and HP21X. Glows red for 2 seconds The battery power is low. 3.2 LCD Icons This feature is available only for HP36X and HP28X.
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Icon Description Direct Mode: The radio transmits and receives directly. Repeater Mode: The radio transmits and receives through a repeater. The VOX feature is enabled. The speaker is turned on. The radio operates in silent mode. An accessory is connected. FCC Statement This device complies with part 15 of the FCC Rules.
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