EFJohnson 8500 manual Speaking Into Microphone, Operation At Extended Range, FCC Licensing

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MISCELLANEOUS INFORMATION

Charger

Part Number Approximate Charge Time

Trickle

563-0001-003

16 hours

Rapid

239-5800-400/-476

2 hours

Vehicular Adapter Rapid

239-5810-500

2 hours

It is good practice to remove the battery from the charger after it is fully charged. Regularly leaving a fully charged battery in the charger for an extended period (such as longer than overnight or over a weekend), may shorten battery life. In addition, the ambient temperature should be +50° to +95° F (+10° to +35° C) when recharging a battery.

NOTE: It is recommended that one of the rapid chargers be used when- ever possible (especially the new technology DT/Dt chargers listed on the preceding page). Using those chargers normally results in longer battery life, longer operating time, and faster recharging.

Speaking Into Microphone

For best results, hold the speaker grille about l-2 inches away from your mouth and speak slowly and distinctly at a normal conversational level. Do not shout since it distorts your voice and does not increase range. Make sure the push-to-talk switch is pressed before you begin to speak and released as soon as the message is complete.

Operation At Extended Range

When approaching the limits of radio range, the other party may not always hear your transmissions and there may be an increase in back- ground noise when messages are received. Communication may be improved by moving to higher ground or away from shielding structures such as tall buildings and hills.

FCC Licensing

To operate this transceiver on the air, it is usually necessary to file the proper license application. Your system operator will provide you with the necessary information regarding licensing requirements.

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Contents Series Safety Information Battery Recycling Information Page Quick Reference Guide Page Table of Contents Operation with Optional Remote Control Unit Front Panel Controls ControlsControls Optional Keys for Telephone Calls Front Panel Display Display InformationDisplay Information Introduction Standard CallsPlacing a Standard Call Receiving a Standard CallPlacing a Special Call Special CallsReceiving a Special Call Landside-Originated Calls Additional Phone Mode InformationDialing The Number Intercept Tone Supervisory TonesConfirmation Tone Clear-To-Talk ToneKey Press Tone Call Proceed Tone System ScanEnd Call Tone Proceed Dialing ToneTransmitting In Scan Scan Resume DelaySystem and Group Lockout Scanning Multi-Net Systems Other FeaturesScanning Conventional Systems Clear-To-TalkGroup Scan Time-Out TimerEmergency Button Call IndicatorRTN Return Key Priority Calls Keypad DisableTransmit Inhibit High/Low Power Select Key Press Tone DisableChannel Monitoring MULTI-NET and Conventional ModesSupervisory Tones Group SelectMonitoring Before Transmitting Conventional Mode OperationTransmit Disable When Busy Call Guard Squelch Receive-Only and Talk-Around ChannelsOperation with Optional Remote Control Unit Control Unit Controls Miscellaneous Operating Information Operation with Optional Remote Control Unit Auto-Registration Miscellaneous InformationSending Status Information System Operator Programming Busy QueuingDisplay Messages Setting Volume LevelBattery Pack Rechargeable Battery PackTransceiver FCC Licensing Speaking Into MicrophoneOperation At Extended Range Intrinsically Safe Classification Transceiver ServiceClassification of Atmospheres Class/ Group Classification of Areas DivisionApproved
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