Midland Radio P25 Selecting Transmit Power, Power Adjust/Mode Change key for more than one second

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Syn-Tech III P25 Portable Radio

OPERATION MANUAL

4.1.6Selecting Transmit Power

For optimal battery life and to minimize interference with others, use the lowest transmit power that will provide adequate range. The radio has three transmit power levels which are selected with successive long presses of the Power Adjust/Mode Change key. The actual transmit power associated with each level is set in radio programming. To switch to the next power level, press and hold

the (Power Adjust/Mode Change) key for more than one second.

Long press

of Power Adjust key selects mid power

Long press

of Power Adjust key selects low power

Long press

of Power Adjust key selects high power

Figure 4.17 – Transmit power selection

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Contents Midland Syn-Tech III P25 Portable Radio Customer Assistance PrefaceImportant Safety Information General Precautions Patent and Copyright Statements FCC Exposure StatementsProduct Features Abbreviations and Acronyms Gettİng Started Table of Contents IntroductionRadİo Controls and Indİcators OperationWarranty Statement Package Contents Installing and Removing the Battery Getting Started Installing the AntennaInstalling the Battery Removing the BatteryCharging the Battery Installing the Belt ClipRadio Controls and Indicators Side, Top and Front Views Button and Key Functions Channel SwitchEmergency Call Button Alpha-Numeric keypadKeypad Lock short press/Emergency Reset long press key Power Adjust long press/Mode Change short press keyRight soft key Index Monitor long press/Call Wait Option short press keyEntering/Exiting Unaddressed Voice Call Mode Switching Talk GroupEntering/Exiting Talkaround Mode Scan keySwitching Zones Switching to Home Zone and ChannelSetting Current Status Entering Unacknowledged Individual Call ModeTransmitting a 2-Tone Call Sending a Call AlertTransmitting a Selective Call Alpha-numeric Keypad Entry Keys Alpha-numeric Keypad EntryDisplay Icons Syn-Tech III P25 Portable Radio Turning the Radio On and Off Basic OperationSelecting Zones Zone selection using # keyZone selection using Menu Selecting Channels Channel switch selectionDigital Reception Receiving SignalsAnalog Reception Analog Transmissions Transmitting to Other Radios14 Digital transmit display Digital TransmissionsBusy Channel Lockout Time Out TimePower Adjust/Mode Change key for more than one second Selecting Transmit PowerSelecting Digital Talk Group Channel Parameters Groups Enter to Talkaround Selecting Talkaround Transmit Mode22 Monitoring channel Monitoring Channels23 Monitoring all talk groups and NACs Short press Selecting Digital Call Wait OptionTransmitting While Scanning Scanning Channels26 Pressing PTT while scan is paused 27 Editing the zone’s scan list Editing the Scan List28 Locking the keypad Locking the Keypad29 Switching to the home zone and channel Switching to the Home Zone and ChannelReceiving Emergency Calls Advanced OperationsPress of the Keypad Lock key or by turning the radio off Transmitting Emergency CallsReceiving Unacknowledged Individual Calls Receiving Digital Individual Calls34 Receiving acknowledged individual call Receiving Acknowledged Individual CallsTransmitting Unacknowledged Individual Calls Transmitting Digital Individual Calls37 Transmitting acknowledged individual call Transmitting Acknowledged Individual CallsTransmitting Digital Unaddressed Calls 39 Exiting unaddressed call mode40 Initiating telephone interconnect request Transmitting Digital Telephone Interconnect CallsTransmitting a Digital Call Alert Receiving a Digital Call AlertReceiving and Sending Non-voice Messages Menu SMS Received Messages Receiving SMS Messages45 Sending SMS message Sending SMS Messages46 Received predefined message Receiving Predefined Messages47 Sending predefined message Sending Predefined Messages9.6 Receiving Status Setting Present StatusStatus Request will not appear on the Status menu Sending Status51 Requesting status Requesting Status52 Channel programming Channel ProgrammingMenu Operation Analog Mode Menu TreeSoftware Digital Mode Menu Tree Predefined Messages Channel Parameters Accessory Midland P/N AccessoriesYour radio does not require any periodic maintenance Possible CAUSEs SOLUTIONs Troubleshooting ProblemDimensions without battery HxWxL Symbol RateWeight with antenna and without battery ModulationMIL-STD 810C MIL-STD 810D MIL-STD 810E MIL-STD 810F ESDVHF UHF Rated RF Output Power Frequency Stability Transmitter SpecificationsRMS Error Modulation Limiting Analog 25 kHz channelWarranty Statement Parretta Drive Kansas City, MO