Alinco Dr-620t/e Vhf/uhf Fm Transceiver Instruction Manual

							38
Useful functions
•Program Scan
This is a type of VFO scan, which is done by setting the fre-
quency range of the VFO into the PH and PL channels, it only
scans between those frequencies. When the PH and PL are
set properly, up to 3 Program scan ranges will be available,
which are L-PH, PL-PH and PH-H.
1.Enter the VFO mode and set the PL and PH
frequencies into the designated memory chan-
nels. Refer to Memory setting for the proper
sequence.
2.Return to the VFO mode by pressing V/M key.
Set the VFO to the frequency within the range
to be program-scanned.
3.Press the MHz key for more than 1 second to
start scanning. During this scan mode, the  deci-
mal point flashes as shown.
4.Use the main dial or Mic UP/DOWN keys to
change the scan direction. Press any key (other
than the UP/DOWN keys) to exit.
•Tone Scan
This function automatically searches for the CTCSS tone an
incoming signal might carry. This feature is useful to search
for the encoding tone of a repeater, or to communicate with a
station operating in TSQ (CTCSS squelch) mode.
1.Press TS/DCS key to enter the CTCSS decode
setting mode. Press until TSQ is displayed.
2.Press the Mic UP/DOWN key for more than 1
second but less than 2 seconds to start scan-
ning. It scans 38 tones in order.
3.When searching, the decimal point on the tone
frequency will flash. Tone scanning stops when
the matching tone is detected.
4.The tone scan won’t resume unless the opera-
tion in step 2 is repeated.
5.Press any key (other than UP/DOWN keys) to
exit.
Band edge H
Band edge LPH
PL
Program Scan is going 
						

							39
Useful functions
•DCS scan
Same as previous, but for DCS code search.
1.While in the DCS setting, press the UP/DOWN
key for more than 1 second but less than 2 sec-
onds to start scanning.
(It scans 105 DCS codes in order.)
• During scanning, the 1 MHz order decimal
point will flash.
• The scan stops when the matching DCS code
is detected and reception starts.
2.When scanning has finished, pressing any key
other than the UP/DOWN key will cancel the
scan mode.
DCS
KEY-LOCK FUNCTION
This will lock the keys to avoid unintentional changes.
1.Press FUNC key and press the TS/DCS key
while the F is on the display.
2.The [  ] icon appears.
3.With this function activated, only the follow-
ing commands can be accessed:
•PTT
•FUNC+TS/DCS to cancel this function
•Monitor function (to release squelch for weak
signal reception)
•Squelch setting
•UP/DOWN keys
TONE BURST
This feature is to alert the other party by adding a tone to the transmitted signal.
•When the PTT key and the DOWN key are pressed together, a tone signal is transmitted.
•The default is an alert sound. The transmitted tone can be changed in the Setting mode.
•For the DR-620E, a 1750Hz tone burst signal is transmitted as the default setting, so that a
repeater can be accessed by the tone.
IMPORTANT: After scanning stops, it will not resume until the dials moved or the Mic
UP/DOWN key is pressed. 
						

							40
Useful functions
Narrow-band mode
This feature is useful in areas where narrow band widths are in use.
AM receiver mode
This mode is to receive AM signals.
1.Press the TS/DCS key while the FUNC key is
pressed.
[AM] icon illuminates on the display to show
the unit is in the AM reception mode.
2.Repeat the same operation to return to the FM
mode.
When the AM RX mode is set, the FM mode
will be used for TX even though the AM icon
remains displayed.
1.Press the MHz key together with the FUNC key.
The [Nar] icon appears on the display to show
the unit is in the Narrow mode.
2.Repeat the same operation to return to the nor-
mal mode.
Nar
In the Narrow mode
AM
IMPORTANT: In the NARROW mode, the microphone gain and modulation during trans-
mission and the demodulation range during reception will be lower. 
						

							Many repeaters require a CTCSS tone or a DCS encode setting as a “key” to access a repeater
system, or a receiver using CTCSS or DCS squelch, so-called “selective-calling”. Sometimes,
CTCSS or DCS decode features are used on the output of a repeater so they can be used to open a
squelch. In this mode, regardless of the main squelch status, the audio can be heard ONLY when
the matching tone/code signal is received. The combination of CTCSS squelch and DCS function
is not available; only one or the other may be used for a given frequency.
41
Selective Communication
Tone-squelch (CTCSS) and DCS
1.Press TS/DCS key. The current setting will be
displayed with T/SQ/DCS icons and relative
frequency/code. Press the same key to select
T/SQ/DCS setting.
2.The numbers (such as 88.5) represent the
CTCSS frequency in Hz. When it is displayed
with the T icon only, the unit transmits the sub-
audible tone while the PTT is pressed (encode)
and the repeater access is enabled (assuming
the repeater is using 88.5).
3.Press the same key again so that the SQ icon
shows up on the display. This is the CTCSS
decode frequency. This enables CTCSS squelch
(or Tone Squelch, TSQ).
4.Press it again so that the 3-digit number and
DCS icon is displayed. This is the DCS code,
and it enables DCS encoding and decoding.
For 2-4, rotate the main dial or press the UP/DOWN keys to change the tone or the code. Press any
key (Except TS/DCS, or Mic UP/DOWN keys) to enter the setting and return to the original status.
The T/SQ/DCS icon will remain on the display to show the current status. To exit, simply use the
TS/DCS key and press it until the relative status icon T/TQ/DCS disappears.
The CTCSS encoding and decoding frequencies may be set differently. The encode setting fre-
quency automatically relates to the decode setting, but the decode setting does not affect encode.
The standard set of 38 different CTCSS tones are available as shown on the chart below. DCS
encode/decode cannot be separated and are selectable from 105 codes as shown below and on the
following page.
T
88.5T/SQ
88.5DCS
023
 The original status
67.0 71.9 74.4 77.0 79.7 82.5 85.4 88.5
91.5 94.8 97.4 100.0 103.5 107.2 110.9 114.8
118.8 123.0 127.3 131.8 136.5 141.3 146.2 151.4
156.7 162.2 167.9 173.8 179.9 186.2 192.8 203.5
210.7 218.1 225.7 233.6 241.8 250.3 
						

							42
Selective Communication
023 025 026 031 032 036 043 047 051 053 054 065
071 072 073 074 114 115 116 122 125 131 132 134
143 145 152 155 156 162 165 172 174 205 212 223
225 226 243 244 245 246 251 252 255 261 263 265
266 271 274 306 311 315 325 331 332 343 346 351
356 364 365 371 411 412 413 423 431 432 445 446
452 454 455 462 464 465 466 503 506 516 523 526
532 546 565 606 612 624 627 631 632 645 654 662
664 703 712 723 731 732 734 743 754
DET setting
If the DET mode in DCS operation is preferred, press the H/L key while the DCS code is displayed
in the setting mode. Observe that a decimal point appears, then follow the remaining sequence to
set the parameter and exit.
DET on DCS function stands for Detect-Only mode. In DCS operation, the TX signal carries a
digital code such as 001010000 as determined by setting the 3-digit code such as 123,124 etc. This
stream is modulated with a very low sub-audible frequency. The RX side, just like TSQ, detects this
stream and determines the squelch operation. This DCS code stream is transmitted all the way
through the communication like a CTCSS tone (in this case a single continuous tone, instead of
digital coded stream).
It is necessary for receiver to correctly and CONTINUOUSLY receive this DCS digital stream to
hold the squelch open, otherwise the CPU thinks that the signal is unwanted and it closes the
squelch. But due to noise or weak signal strength etc, sometimes it is diff icult to continuously
receive a DCS stream. By activating DET, the receiver opens the squelch when the f irst corre-
sponding DCS stream is received, then thereafter, regardless of the status of the DCS codes, the
DCS squelch remains opened.
Advantage of DET
It enables DCS squelch operation even in poorer conditions, opening the squelch only when
a corresponding DCS coded signal is received.
Disadvantage of DET
When it is activated, suppose 2 stations are sharing the same channel and using the DCS
selective-calling technique and transmitting at the same time. After station A with its corre-
sponding DCS is gone, you may still hear station B, although he cant open your DCS
squelch by his signal alone. 
						

							43
Selective Communication
Digital voice communication (DR-620T only)
By installing an optional digital unit EJ-47U, digital voice
communication becomes possible.
1.Install EJ-47U to the connecter CN3 of the unit.
2.Press the FUNC key, and then press the SQL
key while the [F] icon is displayed.
[
] is shown on the display.
3.Press the FUNC key or the PTT key to enter
the digital communication mode. Repeat step
2 to exit and return to the analog FM mode.
4.To cancel the digital communication mode,
press the SQL key while the display shows
codes in step 2.
IMPORTANT: When activating this setting, a code is displayed and switched by rotating the
dial, but it does not affect the function of EJ-47U. Please disregard this setting
sequence. Digital voice operation on certain amateur radio frequencies may
be prohibited, restricted or subject to a special station license. Please be sure
to consult with your local authority prior to operating in this mode.
When digital setting is made 
						

							DC power cable
TransceiverBattery
Steering wheel of the car.
44
To connect, set and operate
Special Functions
IMPORTANT: Be sure to connect the power cable directly to the car battery. The power cable of
this unit  requires voltage at all times to activate this function.
For the same reason, the ACC ON/OFF feature must be deactivated.
THEFT ALARM
This alert uses a beep sound when the unit is about to be removed in an improper manner. This
function is useful when the unit is installed in a vehicle.
1.Wire the alarm cable (There are 2 ways to con-
figure).
1. Modifying and inserting a 3.5 Ø stereo plug
for the alarm into the SP terminal jack in
the back, as the figure shows.
This conf iguration is recommended for ve-
hicle installation, for easier removal of the
cable
2. Modifying and inserting the provided wir-
ing cable UX1290A into the connecter
CN10 in the unit.
This configuration is recommended for a
semi-permanent installation. By selecting
this conf iguration the speaker remains ac-
tive, either internal or external, as config-
ured.
3.5 Ø stereo plug: Looped
UX1290A: Extended and looped
Connect and loop the red and black lead.
Black Red 
CN10
Ensure the tube of the 
cable goes through the 
slot on the chassis.
2.Be sure to fix the alarm cable to the steer-
ing wheel. As the figure shows. 
						

							45
Special Functions
3.Set SCR-ON in the setting mode. The [
*] icon
will appear on the display.
4.Turn OFF the unit.
Alarm function is activated, the display will turn
off and TX display lamp will start illuminat-
ing.
5.To deactivate, turn ON the unit and set SCR-
OFF in the setting mode.
IMPORTANT:•To activate the function, be sure to switch OFF the power after having con-
nected the cable for the alarm. (Connecting it after the power is off may acti-
vate the alarm)
•The alarm will not be active unless the PWR switch is turned off.
•The alarm function will not operate if the power is OFF in the ACC power sup-
ply control function.
•The alarm cable A/B provided with DR-135/435 is not compatible with this unit.
TX lamp
BANDCALLMHzVV/UU V/M
MAIN
VOL
MWMAIN
TX/RX
RX BAND SHIFT LOCKPACKET DIGITALTS/DCSH/LSQLFUNSET
VHF/UHF TWIN BAND FM TRANSCEVER DR-620DR-620
How the alarm operates
When the alarm cable is removed from the port or cut without using the proper sequence, the alarm
sounds for 10 minutes. During the alarm, the unit goes to receive on memory channel 99, accord-
ing to its pre-programmed setting (TSQ/DCS accepted).
To cancel the alarm setting while the alarm is functioning
1.When a signal is received on ch.99 the alarm stops. If ch.99 is empty the unit contin-
ues monitoring the Main-VFO frequency. Turning on the unit with the SQL key
pressed also cancels the alarm.
2.When the power is turned OFF again, the alarm setting resumes.
NOTE: The alarm feature on DR-620TA version functions in a slightly different manner.
1. When the alarm starts, the unit alternates between transmit and receive on ch.99 every 5
seconds for 5 minutes.
2. Setting and operation of the function are the same as other versions.
This feature allows you to monitor and to control the alarm from a remote place by using
ch.99 in the memory mode. 
						

							46
Special Functions
Setting alarm starting time
Choose this operation when a delay period is desired.
1.Enter the Parameter setting mode as described
previously and select SCR-DLY. Follow the
previous instruction to set.
2.Turn off the unit. Display will disappear but
the LCD illumination stays on. After 20 sec-
onds, the TX LED lights up, illumination dims,
and the alarm functions. The system won’t work
during the 20 second “DELAY” period.
3.The alarm sounds under the same condition as
described previously. There is a 20 second de-
lay until the alarm sounds. During the 20 sec-
ond period, only the display illumination is lit.
Turn ON the unit with the SQL key pressed
during the “DELAY” period to cancel the alarm
function.
IMPORTANT: Please set the parameters at SCR-OFF during normal operation.
NOTE: Please use a sticker provided indicating installation of the theft alarm device.
TX lamp
BANDCALLMHzVV/UU V/M
MAIN
VOL
MWMAIN
TX/RX
RX BAND SHIFT LOCKPACKET DIGITALTS/DCSH/LSQLFUNSET
VHF/UHF TWIN BAND FM TRANSCEVER VHF/UHF TWIN BAND FM TRANSCEVER DR-620 
						

							47
Special Functions
Cable Clone
This feature will copy the programmed data and parameters in the master unit to slave units.
3.5 ø stereo-mini plug 
 Master side  Slave side 
Connection
Make a cable using 3.5 mm stereo-mini plugs as shown above. Make a master unit by setting and
programming it as desired. Turn off both units. Connect the cable between the DATA jacks on both
master and slave. Turn both radios on after the connection is made.
Plug configuration (both for Master/Slave)
GNDDATA
TX/RX
IMPORTANT: Be sure to connect cables while the units are turned OFF.
Setting on the Slave side
1.Go to the receive mode (VFO or Memory).
Avoid using 9600 bps data reception.
2.When it receives the clone data, LD*** appears
on the display.
3.When the transmission is successfully finished,
the display will show [PASS].
4.Turn off the power. Disconnect the cable and
repeat the sequence to clone the next slave unit.