Kenwood TH-78A Instruction Manual

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Page 142 Changing Transmitter Output PowerPress the F key, then the D/LOW key to select three different transmitter power output levels. Repeat this functionto step through the power level selections. The actual transmitter output power for this unit depends upon thepower supply used. Indicators will appear on the left-bottom line of lower display to tell you which level you haveselected.The "E" and "L" indicators show the Economic Low power for line-of-sight short-distance communication.The "L" indicator shows the Low power for short-distance communication.No indicator means the high power position has been selected. Use high power for maximum transmitter power.See the high power caution on page 13.Output Power (watts) (Approx.)144 MHz 440 MHzH L EL H L ELPB-13,18 2.0 0.5 0.02 2.0 0.5 0.01PB-14,17 5.0 0.5 0.02 5.0 0.5 0.01Alkaline Battery 2.0 0.5 0.02 2.0 0.5 0.01External Power 5.0 0.5 0.02 5.0 0.5 0.01Supply (13.8VDC)3 TX.Stop FunctionThe TX.Stop function allows you to temporarily disable the transceiver transmit, preventing accidental orunauthorized transmission.Press the F key, then press the f 2/TX.s key to turn the TX.Stop function on or off.4 Time-Out TimerThis transceiver has a time-out timer function to prevent possible problems caused by continuous transmission.This function forcibly stops continuous transmission after 10 minutes. When the timer times out, the transceiverbeeps and automatically returns to the RX mode. Press the PTT switch to transmit again.