Transmit Dtmf/2Tone/5Tone Signaling; High/Mid/Low Power Setting; Frequency Reverse; Ctcss/Dcs Setting - Alinco DR-638H Instruction Manual

5
Basic Operations
Hold [PTT] key to transmit, and speak at approximately 5cm/2 inces to
the microphone in normal voice level. Too
loud or too low voice level may cause trouble
hearing at the receiving stations.
Transmitting is possible only on the MAIN band. Operating
setting can't be changed while transmitting.

Transmit DTMF/2TONE/5TONE signaling

If the current channel is with DTMF/2TONE/5TONE signaling, hold [PTT]
and [ UP ] key will transmit selected Pre-programmed signaling.

High/Mid/Low Power SETTING

Press key to choose output power from 4 different levels. Every
press of the key toggles the setting as the chart below.
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The setting is valid until next change in VFO mode, but it holds only
temporaly in the memory mode and changing the channel or turning
on/off the power will cancel the setting and recalls the original memory
parameter of the output power setting.
HIGH MID1
VHF(50W) VHF(25W)
UHF(40W) UHF(25W)

Frequency Reverse

In standby, hold key for over 1 second to turn On/Off frequency
reverse function. When reverse function is on, the TX frequency will
change to RX frequency and RX frequency change to TX frequency.
The signaling will also be reversed if CTCSS/DCS signaling existed in
this channel.
MID2 LOW
VHF(10W) VHF(5W)
UHF(10W) UHF(5W)
This function is valid only when current channel setup with offset
frequency and offset direction

CTCSS/DCS SETTING

In standby, press key or microphone
CTCSS/DCS encoding and decoding for current channel.
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Press key, When the screen displays the CTCSS frequency
and " " icon, rotate band switch or MIC UP/DOWN keys to select
CTCSS encoding which is desired to setting, press
key to confirm and exit.
21
Double Press key, When the screen displays the CTCSS
frequency and " " icon, rotate band switch or MIC UP/DOWN
keys can sync setting the CTCSS encoding and decoding which is
desired, press key or [PTT] key to confirm and exit
31
Press key three times, When the screen displays the DCS NO.
and "DCS" icon, rotate band switch or MIC UP/DOWN keys can sync
select the CTCSS encoding and decoding which is desired, press
key or [PTT] key to confirm and exit.

CALL CHANNEL RECALLING

Press key to recall a preprogrammed channel. It is convenient to
set the most frequently used channel in advance as a CALL channel for
quicker operation. Repeat it to return to the
last operating channel.

CTCSS/DCS Scan

In standby, long press key to enter CTCSS/DCS scan, when find
matching CTCSS/DCS signal, the scan will pause in the scan pause
way. In the CTCSS/DCS Scan status, rotate band switch or press the
key can setting the
key or [PTT]