Midland Radio P25 operation manual Time Out Time, Busy Channel Lockout

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4.1.5.3Time Out Time

A Time Out Time may be programmed to limit the length of continuous transmissions. If the Time Out Time is exceeded, release PTT and wait for the channel to be available again. The Time Out Time may be set from 15-225 seconds in radio programming.

4.1.5.4Busy Channel Lockout

Syn-Tech III P25 Portable Radio

OPERATION MANUAL

Figure 4.15 – Transmit time out

The radio may be programmed to inhibit transmission while the channel is busy. Wait until the channel is clear before transmitting.

Figure 4.16 – Busy channel lockout

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Contents Midland Syn-Tech III P25 Portable Radio Preface Customer AssistanceImportant Safety Information General Precautions FCC Exposure Statements Patent and Copyright StatementsProduct Features Abbreviations and Acronyms Table of Contents Introduction Gettİng StartedRadİo Controls and Indİcators OperationWarranty Statement Package Contents Getting Started Installing the Antenna Installing and Removing the BatteryInstalling the Battery Removing the BatteryInstalling the Belt Clip Charging the BatteryRadio Controls and Indicators Side, Top and Front Views Channel Switch Button and Key FunctionsEmergency Call Button Alpha-Numeric keypadPower Adjust long press/Mode Change short press key Keypad Lock short press/Emergency Reset long press keyRight soft key Index Monitor long press/Call Wait Option short press keySwitching Talk Group Entering/Exiting Unaddressed Voice Call ModeEntering/Exiting Talkaround Mode Scan keySwitching to Home Zone and Channel Switching ZonesSetting Current Status Entering Unacknowledged Individual Call ModeTransmitting a Selective Call Sending a Call AlertTransmitting a 2-Tone Call Alpha-numeric Keypad Entry Alpha-numeric Keypad Entry KeysDisplay Icons Syn-Tech III P25 Portable Radio Basic Operation Turning the Radio On and OffZone selection using # key Selecting ZonesZone selection using Menu Channel switch selection Selecting ChannelsAnalog Reception Receiving SignalsDigital Reception Transmitting to Other Radios Analog TransmissionsDigital Transmissions 14 Digital transmit displayTime Out Time Busy Channel LockoutSelecting Transmit Power Power Adjust/Mode Change key for more than one secondSelecting Digital Talk Group Channel Parameters Groups Selecting Talkaround Transmit Mode Enter to TalkaroundMonitoring Channels 22 Monitoring channel23 Monitoring all talk groups and NACs Selecting Digital Call Wait Option Short pressScanning Channels Transmitting While Scanning26 Pressing PTT while scan is paused Editing the Scan List 27 Editing the zone’s scan listLocking the Keypad 28 Locking the keypadSwitching to the Home Zone and Channel 29 Switching to the home zone and channelAdvanced Operations Receiving Emergency CallsTransmitting Emergency Calls Press of the Keypad Lock key or by turning the radio offReceiving Digital Individual Calls Receiving Unacknowledged Individual CallsReceiving Acknowledged Individual Calls 34 Receiving acknowledged individual callTransmitting Digital Individual Calls Transmitting Unacknowledged Individual CallsTransmitting Acknowledged Individual Calls 37 Transmitting acknowledged individual call39 Exiting unaddressed call mode Transmitting Digital Unaddressed CallsTransmitting Digital Telephone Interconnect Calls 40 Initiating telephone interconnect requestReceiving a Digital Call Alert Transmitting a Digital Call AlertReceiving and Sending Non-voice Messages Receiving SMS Messages Menu SMS Received MessagesSending SMS Messages 45 Sending SMS messageReceiving Predefined Messages 46 Received predefined messageSending Predefined Messages 47 Sending predefined messageSetting Present Status 9.6 Receiving StatusSending Status Status Request will not appear on the Status menuRequesting Status 51 Requesting statusChannel Programming 52 Channel programmingAnalog Mode Menu Tree Menu OperationSoftware Digital Mode Menu Tree Predefined Messages Channel Parameters Accessories Accessory Midland P/NYour radio does not require any periodic maintenance Troubleshooting Problem Possible CAUSEs SOLUTIONsSymbol Rate Dimensions without battery HxWxLWeight with antenna and without battery ModulationESD MIL-STD 810C MIL-STD 810D MIL-STD 810E MIL-STD 810FVHF UHF Transmitter Specifications Rated RF Output Power Frequency StabilityRMS Error Modulation Limiting Analog 25 kHz channelWarranty Statement Parretta Drive Kansas City, MO