28
•
If the PTT switch is pressed when a frequency other than the amateur ham radio band
is selected, an alarm tone (beep) will be emitted and “
TX PROHIBIT
” appears on the
display, disabling transmission.
•
If transmission is continued for a long period, the transceiver overheats, and the high
temperature protection function is activated. As a result, the transmitting power level is
automatically set to Low Power. If transmission continues while the high temperature
protection function is active, the transceiver will be forcibly returned to the receive
mode.
Changing the Transmit Power Level
With the factory settings, the transmit power level changes from “
HI
” to “
LO
” to “
MD
”
when the microphone [
P4
] key is pressed (see the table below). The transmit power lev-
el can also be changed using the function menu.
1. Press and hold the [
F(SETUP)
] key.
2. Rotate the
DIAL
knob to select [
FUNCTION
], then
press the
DIAL
knob.
3. Rotate the
DIAL
knob to select [
TXPWR
].
4. The transmit power output switches as follows each
time the
DIAL
knob is pressed.
“
HI
”→“
LO
”→“
MD
”
5. Press the [
DISP
] key to complete the setting.
Display of PO meter during transmission
HI
MD
LO
50 W
25 W
5 W
*: The factory setting is “HI”.
The transmit power output can be set individually for each frequency band (band) and
memory channel in each of A band and B band.
Locking the Keys and DIAL knob
1. Press the Power (Lock) switch, “
LOCK
” is shown on
the display for one second, the “ ” icon appears
on the display, and then the keys and
DIAL
knob are
locked.
The PTT switch and the VOL knob cannot be locked.
Press the POWER (Lock) switch again, “
UNLOCK
” will be shown on the Display and
the keys and the
DIAL
knob are unlocked.
The “ ” icon disappears.
