24
FT-90R OPERATING MANUAL
Transmission
To transmit, simply close the PTT (Push To Talk) switch on the microphone when
the frequency is clear. Hold the microphone approximately 25 mm (1”) from your
mouth, and speak into the microphone in a normal voice level. When your trans-
mission is complete, release the PTT switch; the transceiver will revert to the
receive mode.
Power Output Setting
Four power output levels are available on this transceiver: 5 watts (
LOW
), 10
watts (
MID2
), 20 watts (
MID1
) and 50 watts (VHF) or 35 watts (UHF) on
HIGH
.
To change the power level, press the front panel’s
[
P2
]
button on the microphone.
Each time you press the
[
P2
]
button, the new power level will be displayed for a
few seconds, then the regular display mode will reappear.
The power level may be stored in a memory register, if desired.
PTT Locking
The PTT circuitry may be locked out, so as to prevent unauthorized or otherwise
undesired transmission.
To lock out the PTT and prevent transmission as following:
1. Press and hold in the key for one second, then rotate the MAIN DIAL
knob to select “
19LckTx
.”
2. Press the key to select the desired locking mode:
BAND A
: PTT disabled on VHF only;
BAND B
: PTT disabled on UHF only; or
BOTH
: PTT disabled on both the VHF and UHF bands.
3. Press and hold in the key for 1.5 second to save the new setting and
exit to normal operation.
To cancel the PTT lockout feature, select “
OFF
” in step 2 above.
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