Changing Transmitter Output Power; Tx.stop Function; Time Out Timer - Kenwood TH-78A Instruction Manual

2

Changing Transmitter Output Power

Press the F key, then the D/LOW key to select three different transmitter power output levels. Repeat this function
to step through the power level selections. The actual transmitter output power for this unit depends upon the
power supply used. Indicators will appear on the left-bottom line of lower display to tell you which level you have
selected.
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)
PB-13,18
PB-14,17
Alkaline Battery
External Power
Supply (13.8VDC)
3

TX.Stop Function

The TX.Stop function allows you to temporarily disable the transceiver transmit, preventing accidental or
unauthorized transmission.
Press the F key, then press the f
4 Time-Out Timer
This 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 transceiver
beeps and automatically returns to the RX mode. Press the PTT switch to transmit again.
144 MHz
H L EL
2.0 0.5 0.02
5.0 0.5 0.02
2.0 0.5 0.02
5.0 0.5 0.02
2
/TX.s key to turn the TX.Stop function on or off.
(Approx.)
440 MHz
H L EL
2.0 0.5 0.01
5.0 0.5 0.01
2.0 0.5 0.01
5.0 0.5 0.01
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