Instruction manual
25
Basic Operations
To transmit
1. Set the transmission band to the MAIN side.
2.
Be sure that you are authorized to operate on the
selected frequency. Check the system and monitor
the frequency to make sure that you are not going
to disturb any ongoing communications.
3.
Press the PTT key on the microphone. The TX lamp (red)
illuminates to show the unit is transmitting. The SUB-
band audio mutes during the transmission. If the receiver’s
frequency combination is VHF amateur/accessory RX
band such as Air-band or FM broadcasting, the transmission
becomes prohibted due to the nature of receiver circuit
design. To be able to transmit, please exit from the
accessory RX frequency on the SUB-band side, and
replace the SUB-band frequency with one of other bands.
4. Speak into the microphone in a normal tone
while keeping the PTT key pressed.
Hold the microphone approximately 5cm away
from your mouth. Speaking too close or
too loud
may result in poor transmitted audio.
5.
Releasing the PTT key will complete the transmis-
sion and the unit will return to the receive Mode.
NOTE: Pressing the DOWN key together with the PTT key will transmit the CALL tone
signal. DR-620E will transmit the Tone Burst signal. See page 39 for details.
IMPORTANT: If you press the PTT key while out of the transmission frequency range,
the [OFF] icon will appear on the display and no transmission will occur.
TX lamp
BAND
CALL MHz
VV/UU
V/M
MAIN
VOL
MW
MAIN
TX/RX
RX BAND SHIFT LOCK
PACKET DIGITAL
TS/DCS
H/L SQL FU
N
SE
T
VHF/UHF TWIN BAND FM TRANSCEVER DR-620
DR-620
Selecting transmission power
1. Press the H/L key. The transmission power
switches from Hi to Mid, Mid to Lo and then
Lo to Hi.
At MID power, the [Mi] icon, and at LOW
power, the [Lo] icon illuminates. Nothing ap-
pears on the display at Hi power. The default is
HI power.
The RF meter shows •• when transmitting at
LOW power, •••• at MID power and •••••• at
HI power.
IMPORTANT: The output power level cannot be changed during transmission.
Lo
1 35 7 9
At LOW power
Mi
1 3 5 79
At MID power
1 3 5 7 9
At HI power
620T/E
VHF UHF
HI
MID
LOW
50W 35W
10W 10W
5W 5W
Transmission
power