Transmitter Operation; T Ro Srensilh. " 6. Cos; Changing Transmitter Output Power - Kenwood TH-28A Instruction Manual

TRANSMITTER OPERATION
Before you attempt to transmit, attach an antenna
with a low standing wave ratio to the antenna
connector. Failure to provide a proper load may
cause damage to the final amplifier section. Always
check that the frequency is clear before transmitting.
1 To transmit, follow these steps:
1 Use any of the frequency selection methods on page
11 to select an operating frequency.
2 Check the frequency to see if it is occupied before
you transmit.
3 Press the PTT switch. The ON AIR indicator and
battery level meter will appear.
4 Speak into the microphone from the recommended
distance of 5 cm (2 inches). Talking closer or farther
away can result in loss of clarity, an excessively wide
transmit signal, or weak audio.
5 Release the PTT switch to return to the receive
mode. The ON AIR and battery level meter
indicators should go out.
2 Changing Transmitter Output Power
Pressing the LOW key allows you to select 4
different transmitter output power levels. The actual
transmitter output power for this unit depends on the
power supply being used. Indicators will appear on
the display to tell you which level you have selected.
The "E and L" indicators show the Economic Low
power position. Use Economic Low power for line-
of-sight short-distance communication.
The "L" indicators shows the Low power position.
Use Low power for short-distance communication.
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