HYT Science and Technology Co TC-620U2 Two-way Radio User Manual TC 620 owner s manual

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TC-620 Owner’s Manual
Contents
Introduction ................................................................................................................................ 2
Safety and General Information ................................................................................................. 3
Specifications ............................................................................................................................. 4
Product Inspection...................................................................................................................... 5
Getting Started ........................................................................................................................... 7
Battery Information ..................................................................................................................... 9
Antenna Information ................................................................................................................. 12
Assembly and Disassembly ..................................................................................................... 12
General Radio Operations........................................................................................................ 17
Functions and Settings............................................................................................................. 20
CTCSS/CDCSS ................................................................................................................ 20
Battery Save ..................................................................................................................... 20
Power Adjust ..................................................................................................................... 20
Time-out Timer (TOT)........................................................................................................ 21
Battery Strength Indicator.................................................................................................. 21
Monitor / Squelch Off ........................................................................................................ 21
Scan.................................................................................................................................. 22
Busy Channel Lockout (BCL) ............................................................................................ 24
Low Battery Alert ............................................................................................................... 24
Voice Operated Transmit (VOX)........................................................................................ 24
Troubleshooting ....................................................................................................................... 26
Care and Cleaning ................................................................................................................... 27
Optional Accessory .................................................................................................................. 28
Channel Frequency Table ........................................................................................................ 30
CTCSS Table (38).................................................................................................................... 30
CDCSS Table (83) ................................................................................................................... 31
Glossary ................................................................................................................................... 33
TC-620 Owner’s Manual
Introduction
Thank you for your purchase of the HYT TC-620 radio - the choice for professionals. TC-620 is
a professional radio that with exquisite and ergonomic design, which bring user a fine operation
feel. The TC-620 is customized for logistics, warehousing, property management and service
industries because all TC-620 radios are approved to dust & water protection Class IP54 and
endowed with large speaker.
This easy-to-use radio will deliver you secure, instant and reliable communications at peak
efficiency. Please read this manual carefully before use. The information presented herein will
help you to derive maximum performance from your radio.
MODELS COVERED IN THIS MANUAL
TC-620 VHF Two-way Radio
TC-620 UHF Two-way Radio
TC-620 Owner’s Manual
Safety and General Information
The following general safety precautions as would normally apply, which should be
observed during all phases of operation, service and repair of this equipment.
◇ Turn off your radio prior to entering any area with a potentially explosive atmosphere.
◇ Do not charge your battery in a potentially explosive atmosphere.
◇ Do not use any portable radio that has a damaged antenna. If a damaged antenna
comes into contact with your skin, a minor burn can result.
◇ This equipment should be serviced by qualified technicians only.
◇ To avoid possible interference with blasting operations, turn off your radio when you are
near electrical blasting caps. In a blasting area or in areas such as hospital site posted
“Turn off two-way radio”; when taking an airplane, please obey the “turn off two-way
radio” instruction of aircrew staff as well.
◇ For vehicles with an air bag, do not place a radio in the area over an air bag or in the air
bag deployment area. Air bags inflate with great force. If a radio is placed in the air bag
deployment area and the air bag inflates, the radio may be propelled with great force
and cause serious injury to occupants of the vehicle.
◇ Do not expose the radio to direct sunlight over a long time, nor place it close to heating
source.
◇ When using your radio, hold the radio in a vertical position with the microphone 3 to 4
centimeters away from your lips.
◇ If you wear a radio on your body when transmitting, ensure the radio and its antenna
are at least 2.5cm away from your body.
TC-620 Owner’s Manual
Specifications
General
Frequency Range（MHz）
Channel Spacing（KHz）
Operating Voltage（V）
Antenna Impedance (Ω)
VOX Level
Operating Temperature
Reliability
RF Power Output（W）
Audio Distortion
Reference Sensitivity (dBm)
Maximum Audio Power Output (W)
VHF: 136-174MHz
UHF (1): 400-420MHz
UHF (2): 450-470MHz
UHF (3): 440-470MHz
Wide: 25 KHz / Narrow: 12.5KHz
7.5V DC
50Ω
Adjustable 5 levels
-20℃- +50℃
Meets GB/T15844-1995
Standard
Hi: 4.5-5W / Lo: 2.0±0.3W
Less than 5%
Wide: -119dBm /Narrow: -118dBm
More than 1.2W
TC-620 Owner’s Manual
Product Inspection
Before unpacking the TC-620 portable radio, please inspect the packaging for signs of damage
and report any damage to your dealer.
Upon unpacking of the TC-620 portable radio, please ensure that all items shipped were
received, report any missing or damaged items to your dealer.
Item
Qty. (PCS)
Antenna
Belt Clip
Screw
Strap
Battery
Charger
Adapter
Owner’s Manual
Note: 1. Frequency band is marked on the label of antenna, if not, identify the frequency band
according to the color circle, red indicates UHF, green indicates VHF. Please refer to the label
on the radio unit for detailed frequency band information.
2. The radio unit is shipped with screws mounted from the factory.
TC-620 Owner’s Manual
Battery
Adapter
Belt Clip
Charger
Strap
Screw
Antenna
TC-620 Owner’s Manual
Getting Started
11
15
13
12
14 16
10
(1) PTT (Push-to-Talk)
(2) SK1 key (Side Key 1)
(3) SK2 (Side Key 2)
key
(programmable)
(programmable)
(5) Microphone
(6) Antenna
(7) LED Indicator
(8) Channel Selector Knob
(10) Battery Latch
(11) Accessory Jack
(12) Accessory cover
(14) Battery
(15) Screw
(16) Electrode Piece
(9)
Radio
On-Off
(4) Speaker
/Volume Control Knob
(13) Belt Clip
* PTT (Push-to-Talk) Key
Press and hold down the PTT key to transmit, release it to receive.
*SK1 (Side Key 1)
Side Key 1 is the programmable key that can be assigned with long press function and short
TC-620 Owner’s Manual
press function by your dealer. See Glossary for definitions of short press and long press.)
*SK2 (Side Key 2)
Side Key 2 is the programmable key that can be assigned with long press function and short
press function by your dealer. (See Glossary for definitions of short press and long press.)
*LED indicator
Status of LED indicator and alert tone see table below (See Functions and Settings for the
detailed operations):
When the radio is turned on, the power up alert tone
Power up in user mode
is heard.
When the current channel is a blank channel, the
radio sounds Beep tone continuously.
Low battery alert
LED flashes red, and a low-pitched tone sounds at
intervals of 10 seconds.
LED glows red when transmitting
Transmitting
When TOT timer expires, the radio sounds Beep tone
continuously.
TOT pre-alert: a Beep is heard.
Receiving
LED glows green when carrier is present.
Green LED flashes at every 1 second, while scanning
is in process.
Scan Start Alert Tone (programmable by your dealer):
a Beep is heard.
Scanning
Scan Exit Alert Tone (programmable by your dealer):
a Beep is heard.
Priority Channel Scan Alert Tone (programmable by
your dealer): when scanning, if the current channel is
the priority channel, the radio sounds a Beep.
Power adjust
A low-pitched tone is heard when transmit power is
adjusted from high power to low power.
TC-620 Owner’s Manual
A high-pitched tone is heard when transmit power is
adjusted from low power to high power.
A high-pitched tone is heard when the VOX feature is
VOX
activated.
A low-pitched tone is heard when the VOX feature is
disabled.
*Channel Selector Knob
Rotate the knob to select from channel 1 to 16.
* Radio On-Off/Volume Control Knob
Rotate the knob clockwise to turn the radio on, rotate the knob fully counter-clockwise until a
“click” is heard to turn the radio off.
Turn the knob clockwise to increase the volume, or counter-clockwise to decrease the
volume.
*Battery latch, used to remove the battery.
* Accessory Jack
The jack is used to connect speaker, microphone, external PTT, earpiece, programming
cable and cloning cable.
Battery Information
Safety Precautions
The optional battery is shipped uncharged from the factory. Please charge a new battery or
battery that has not been used for a long time prior to use. The maximum capacity of the battery
is achieved only after 2 or 3 charging and discharging cycles. When the battery power runs low,
please recharge the battery or replace with a refresh one.
Applicable Battery Packs
To reduce the risk of injury, charge only the battery specified by the manufacturer. Other
batteries may burst, causing bodily injury and damage.
Caution:
1.
Do not short circuit the battery terminals or discard the battery in fire. Never attempt to
TC-620 Owner’s Manual
disassemble the battery.
2.
The battery should be charged at 5℃ ~ 40℃, temperature out of this range could result the
battery not fully charged.
3.
When charging a battery attached to a radio, turn the radio off to ensure a full charge.
4.
Do not cut off the power supply or remove the battery when charging a battery.
5.
If the operation time will not increase even though the battery is properly charged, this
means the battery life cycle is over, please replace with a new one.
6.
Do not return fully charged batteries to the charger for an “extra boost”. This action will
significantly reduce battery life.
7.
Never charge a battery that is wet. Please dry it with soft cloth prior to charge.
All batteries can cause property damage and/or bodily injury such as burns if a conductive
material such as jewelry, keys, or beaded chains touch exposed terminals. The conductive
material may complete an electrical circuit (short circuit) and become quite hot. Exercise care in
handling any charged battery, particularly when placing it inside a pocket, purse, or other
container with metal objects.
Charging Operation
If the battery is assembled to the radio, its LED indicator flashes red and sounds falling tone 10
seconds per time, which indicates that the battery power is low and please charge the battery by
the HYT approved charger. The charger’s LED indicates the charging progress.
Status
Charger LED
Standby (no-load)
Red LED flashes slowly (0.2s on/3s off )
Remarks
Intelligent
rapid-rate
charger only
Battery is charging
Red LED solidly glows
Battery
Green LED solidly glows
is
fully
charged
Error
Red LED flashes rapidly (0.2s on/0.2s
Intelligent
off)
charger only
Charging please refer to the following procedure:
10
rapid-rate
TC-620 Owner’s Manual
1. Plug the DC connector of the adapter into the DC socket on the back of the charger.
2. Place the radio with the battery attached, or the battery alone, in the charger.
3. Plug the AC connector of the adapter into the AC outlet socket.
4. Make sure the battery is in well contact with the charging terminals, the charging process
initiates when the red LED lights.
5. The greed LED lights about 3 hours later indicating the battery is fully charged. Then remove
the radio with the battery attached or the battery alone from the charger.
Note:
a)
It is normal that the LED flashes before placing the battery into the charger.
b)
Do not place another battery into the charger until the charger LED is stabilized.
c)
After the battery is placed properly, the LED solidly glows red indicating the battery is
charging, or flashes indicating the battery is damaged or the ambient temperature is
over high/low.
11
TC-620 Owner’s Manual
Antenna Information
—
Stubby antennas are ideal for communication within limited range. Fine and long
antennas optimizes communication coverage, ideal when the radio is worn on the belt
because they are flexible and soft.
—
Rainy days or forest locations may narrow your communication range, please prepare
in advance to avoid potential inconvenience.
Assembly and Disassembly
Attaching the Battery
1.
Hold the battery and make it attached close to the top of aluminum chassis, see figure 1.
(Note: insert the tab on the top of battery into the top of battery slot).
Figure 1
2.
Lightly press the bottom of the battery until a “click” is heard. By then, the battery latch locks
with the main unit and assembly is finished. See figure 2 below:
Note: if the battery is not well locked, please remove the battery and attach it again.
12
TC-620 Owner’s Manual
Figure 2
Removing the Battery
1.
Please turn off the radio first. Then hold the top of radio main unit and press belt clip to
make its tail turn up. Lift the battery latch in the direction of the arrow. See figure 3.
Figure 3
2.
When the bottom of battery is turned up, release the battery latch and take out from the
battery slot, see figure 4 below. (Note: when battery is turned up, the angle between battery
and main unit can not be too large to cause serious abrasion of the tab in the top of
battery.)
13
TC-620 Owner’s Manual
Figure 4
Attaching the Antenna
1.
Insert the antenna to the big screw thread hole on the top of main unit.
2.
Turn the antenna clockwise until it is screwed down, shown as figure 5.
Figure 5
Removing the Antenna
When disassembling antenna, turn the antenna counter-clockwise until it is loosen and screwed
out, shown as figure 6.
14
TC-620 Owner’s Manual
Figure 6
Attaching the Belt Clip
Loose the screw of belt clip from the main unit, fasten the belt clip to the main unit (make sure
the screw holes of belt clip and of aluminum chassis is aligned), clockwise screw down the belt
clip. (See figure 7 below).
Figure 7
Removing the Belt Clip
Turn the screwdriver counter-clockwise to loosen the screw. Please refer to the operations for
attaching the belt clip. See figure 8 below.
15
TC-620 Owner’s Manual
Figure 8
Attaching the Earpiece/Microphone
1.
Open (not remove) the accessory cover, shown as figure 9:
Figure 9
2.
Plug the audio accessory firmly into the accessory jack, then secure the screw, shown as
figure 10.
16
TC-620 Owner’s Manual
Figure 10
Removing the Earpiece/Microphone
Loosen the screw and then remove the audio accessories.
Note: Using the radio with audio accessory may affect the waterproof performance of the radio.
General Radio Operations
Note: See Glossary for definitions of relevant words.
Turn the Radio On/Off
Turn the radio on-off /volume control knob clockwise to turn on the radio, then radio sounds an
alert tone. Turn the radio on-off /volume control knob counter-clockwise to turn off the radio.
(See figure 1 below)
Figure 1
17
TC-620 Owner’s Manual
Adjust the Volume
Press the programmable key set as Squelch Off / Squelch Off Momentary to listen the
background noise, then turn the volume control knob clockwise/counter-clockwise to
increase/decrease the volume. See Glossary for definition of Squelch.
Figure 2
Select a Channel
Turn the channel selector knob to select a channel. See figure 3 below.
Figure 3
Transmitting
To transmit, press and hold down PTT key and talk to microphone to speak. Ensure the radio is
2.5 to 5 centimeters away from your lips.
18
TC-620 Owner’s Manual
Receiving
To receive signal, release the PTT key.
Talk Range:
Flat ground with no obstructions
Up to 10 kilometers
Residential area (close to buildings）
Up to 5 kilometers
Inside multi-level buildings
Up to 20 floors
Programmable Auxiliary Functions
Your dealer may program the TK, SK1, SK2 (long or short press) keys with one of the following
auxiliary functions respectively. See Functions and Settings for the detailed description.
None
Power Adjust
Battery Power Indicator
Squelch Off (See Glossary for definitioins of Steady and Squelch Off.）
Squelch Off Momentary
Monitor
Monitor Momentary（See Glossary for definitioins of Momentary and Monitor）
Scan（See Glossary for definitioin of Scan.）
VOX
19
TC-620 Owner’s Manual
Functions and Settings
The following functions are programmable by your dealer.
CTCSS/CDCSS
Set up talkgroups with unique CDCSS/CTCSS to prevent unwanted conversations on the same
frequency. See Glossary for definitions of CTCSS and CDCSS.
If CTCSS/CDCSS is set on the current channel, CTCSS/CDCSS match is required for the radio
to unmute to an incoming signal. If CTCSS/CCSS is not set, the radio can receive calls from all
users operating on the same frequency. Your dealer may set CTCSS/CDCSS for some
channels.
This feature does not mean that your conversation will not be heard by others. Radios that set
with the same CTCSS/CDCSS, or no CTCSS/CDCSS, can receive from you.
Battery Save
This feature can be enabled by your dealer. The Battery Save feature is automatically activated
once no activity on the channel and no operation performed (no key press and no knob
selection), for extended operation time.
Pressing any key or receiving a signal will restore the radio to normal operation and exit from
Battery Save.
See Glossary for the definition of Battery Save.
Power Adjust
A press of the programmed Power Adjust key switches the transmit power level between high
and low power.
20
TC-620 Owner’s Manual
Time-out Timer (TOT)
Limits the amount of time the radio user can continuously transmit on a channel. If the user
holds down the PTT longer than the preprogrammed limit, the radio automatically stops
transmitting, and generates a warning tone until the PTT is released.
Your dealer may program the alert tone that sounds before the TOT timer nearly expires.
See Glossary for the definition of Time-out Timer.
Battery Strength Indicator
The TC-620 allows you to simply press one button to illuminate the LED batter gauge, which
emits different indications representing battery strength levels until the key is released.
Battery Strength
LED Indication
70% - 100%
Green
50% - 70%
Orange
30% - 50%
Red
10% - 30%
LED is unlit when the programmed key is pressed, while flashes
red while the radio is operating.
Less than 10%
LED is unlit when the programmed key is pressed. While the
radio standby, LED flashes red and a low-pitched tone sounds at
intervals of ten seconds, a press of the PTT then shall activate
the talk prohibit tone.
Monitor / Squelch Off
Squelch Off
Causes the radio to forcibly unmute speaker to here activities on the current channel, whatever
the receive condition is. The radio speaker outputs audio when audio signal is present, or
background noise will be heard if no audio signal is detected.
21
TC-620 Owner’s Manual
Press the function key to enter the Squelch Off mode, and press it again to exit.
Squelch Off Momentary
Causes the radio to forcibly unmute speaker to here activities on the current channel, whatever
the receive condition is. The radio speaker outputs audio when audio signal is present, or
background noise will be heard if no audio signal is detected.
Holds down the function key to enter the Squelch Off mode, and release it to exit.
Monitor
Carrier condition must be satisfied for the radio to unmute to an incoming call, regardless of
CTCSS/CDCSS condition.
Press the function key to enter Monitor mode, and press it again to exit.
Monitor Momentary
Carrier condition must be satisfied for the radio to unmute to an incoming call, regardless of
CTCSS/CDCSS condition.
Holds down the function key to enter Monitor Momentary mode, and release it to exit.
Scan
Press the programmed Scan key to initiate scanning ascending through the channel numbers in
scan list. Green LED flashes during the scan process, and solidly glows when activity is
detected on a channel and signalling condition is satisfied. Press the key again to exit scanning.
When scanning is active, the radio continuously scans for activity on scan list members. Once
activity is detected on a channel, scanning pauses on the active channel for you to receive
activity. Your dealer can choose channels that you wish to scan and list them in a scan list.
No Priority Channel
Assuming a scan list with 6 channels, if all the channels are non-prioritized, the normal scan
operation would check for activity in the following sequence :
22
TC-620 Owner’s Manual
Priority Channel Scan
If you prioritize Channel 2 as Priority 1, the scan operation would change to
Scan On/Off
You can enter scan mode through the following two methods:
1. Key operation
Press the programmed Scan key to enter scan mode, provided that there’re no less than 2
members in the scan list.
2. Auto
When Auto Scan is enabled for a channel, the radio shall automatically enter scan mode when it
is switched to the channel.
You can exit scan mode through the following three methods:
1. Key operation
23
TC-620 Owner’s Manual
Press the programmed Scan key to exit scan mode.
2. Auto
The radio automatically exits from scan mode when it is switched to another channel.
1. Key operation
Press the programmed Scan key to exit from scan mode.
2. Auto
The radio automatically exits from scan mode when it is switched to another channel.
3. Turn the radio off.
Talk Back
You can respond to any calls received during the scan process by pressing the PTT.
Priority Channel Scan
Enable you to constantly monitor & keep an update on the activities on the most commonly used
channel so that messages will not be missed. Check with your dealer for details.
When scanning remains on a non-priority channel, the radio continues to monitor activities on
the priority channel, and jumps to the priority channel if activity is detected.
Busy Channel Lockout (BCL)
Avoid interference with the users using the same channel by preventing transmission if another
talk group is already on the air. The radio will generate a continuous tone upon PTT press if a
transmission is not allowed. Release the PTT to cancel the tone.
See Glossary for definition of BCL.
Low Battery Alert
For extra convenience, LED flashes red and a low-pitched tone sounds at every ten seconds to
alert users to recharge the battery should the battery level run low.
Voice Operated Transmit (VOX)
You can transmit hands free with the use of optional accessories. The radio will automatically
begin transmitting when you speak, and terminate transmitting when you stop talking. See
24
TC-620 Owner’s Manual
Glossary for definition of VOX.
Press the programmed VOX key to activate or exit the VOX feature, with alert tone sounds
accordingly.
Your dealer can enable/disable the VOX feature, and set the VOX sensitivity. When VOX
feature is enabled, the user can transmit hands free with VOX accessories:
1.
Press the programmed VOX key to activate the VOX feature.
2.
Select the PTT/VOX switch on the earpiece to VOX.
3.
Plug the earpiece into the accessory jack.
4.
Speaker into the earpiece microphone and your voice will be transmitted.
When transmitting with VOX accessories, you may here your own voice from the VOX earpiece
slightly. Press the PTT of your radio to disable the VOX feature. Turn the radio off on again, or
plug the earpiece into the accessory jack again to restore the VOX feature.
Note: No matter whether the VOX feature is enabled, if you select the PTT/VOX switch on the
earpiece to PTT, you are able to transmit by press of the external PTT, and you are not allowed
to push the switch from PTT to VOX, this action shall cause the radio to continuously transmit.
When continuous transmission occurs, push the PTT/VOX switch from VOX to PTT, or turn on
the radio again to restore the radio to operation use.
Note: to order accessories, please contact your dealer.
25
TC-620 Owner’s Manual
Troubleshooting
Symptom
Solution
a. The battery is run out. Please recharge the battery
or replace it with a fresh one.
Cannot power on the radio.
b. The battery is not properly installed. Please
remove and reinstall the battery.
The operation time will not increase
even though the battery is properly
charged.
a. The battery life cycle is over, please replace with a
new one.
b. The battery is not fully charged. Make sure that the
battery is removed after LED indicator has indicated
green.
Cannot talk to or hear group
members.
a. Confirm radios have the same channel, and
CTCSS/CDCSS settings.
b. Make sure you are within their communication
range.
a. Please change your CTCSS/CDCSS settings, and
so as your group members.
Hear non-group members
No
voice
or
transmitting
low
voice
while
a. Whether the volume switch knob is switched to a
proper position
b. Send the radio to your dealer for microphone
detection
Noise always on
a. Group members are too far away to receive their
call. Please go within the communication range and
re-power on the radio to try.
26
TC-620 Owner’s Manual
Care and Cleaning
Do not handle the radio by its antenna or external microphone directly.
Do not place the repeater in a dusty or dirty environment.
Clean the radio with a lint-free cloth to remove dirt or grease, to avoid poor contact due to
excessive dust.
Clean the radio using a lint-free cloth moistened with clean water and a mild dishwashing
liquid.
Avoid subjecting the radio to corrosives, solvents or spirits.
27
TC-620 Owner’s Manual
Optional Accessory
Ni-MH Battery (1300mAh) BH1303
Multi-unit Rapid-rate Charger
Switching Power PS7501 (for
Remote
MCA02
use with different power cords
SM08M3
for
different
countries
Speaker
Microphone
and
areas)
Receive-only Earpiece (for use with
Receive-only Earpiece
remote
Transparent
speaker
microphone)
ESS07
Acoustic
with
Tube
Earbud with in-Line PTT &
Earpiece with in-Line PTT &
VOX ESM11
VOX & Transparent Acoustic
Tube EAM11
(for use with remote speaker
microphone) ESS08
Boom
Light-weight,
Single-Muff
& Transparent
Microphone & PTT & VOX
Microphone & in-Line PTT &
Headset with in-Line PTT & VOX
EHM15
VOX EHM16
ECM12
EAM12
in-Line
with
D-earset
Acoustic Tube
with
D-earset
Earpiece with on-MIC PTT & VOX
28
TC-620 Owner’s Manual
Light-weight,
Behind-the-Head
Earpiece with in-Line PTT & VOX
Heavy Duty Noise-cancelling
Behind-the-Head,
Headset (with screw) ECM13
Noise-Cancelling Headset
(with screw)
ECM11
Programming
Cable (COM port)
PC19
Programming
PC26
Leather
Carrying
Case
LCBN56
Cable (USB port)
Universal
ECM14
Transparent Waterproof Bag
LCBY03
Programming
kit
PC08
29
Antenna
Cloning Cable CP05
Universal Chest Pack LCBN13
TC-620 Owner’s Manual
Channel Frequency Table
Model:
Serial No.:
Tx
Channel
Frequency
(MHz)
Tx CTCSS
/CDCSS
Rx
Rx
Frequency
CTCSS/CDCSS
(MHz)
10
11
12
13
14
15
16
CTCSS Table (38)
No.
Frequency (Hz)
No.
Frequency (Hz)
67.0
20
131.8
71.9
21
136.5
74.4
22
141.3
77.0
23
146.2
79.7
24
151.4
82.5
25
156.7
85.4
26
162.2
30
TC-620 Owner’s Manual
88.5
27
167.9
91.5
28
173.8
10
94.8
29
179.9
11
97.4
30
186.2
12
100.0
31
192.8
13
103.5
32
203.5
14
107.2
33
210.7
15
110.9
34
218.1
16
114.8
35
225.7
17
118.8
36
233.6
18
123.0
37
241.8
19
127.3
38
250.3
CDCSS Table (83)
No.
CDCSS
No.
CDCSS
39
023
82
331
40
025
83
343
41
026
84
346
42
031
85
351
43
032
86
364
44
043
87
365
45
047
88
371
46
051
89
411
47
054
90
412
48
065
91
413
49
071
92
423
50
072
93
431
51
073
94
432
52
074
95
445
53
114
96
464
54
115
97
465
55
116
98
466
31
TC-620 Owner’s Manual
56
125
99
503
57
131
100
506
58
132
101
516
59
134
102
532
60
143
103
546
61
152
104
565
62
155
105
606
63
156
106
612
64
162
107
624
65
165
108
627
66
172
109
631
67
174
110
632
68
205
111
654
69
223
112
662
70
226
113
664
71
243
114
703
72
244
115
712
73
245
116
723
74
251
117
731
75
261
118
732
76
263
119
734
77
265
120
743
78
271
121
754
79
306
80
311
81
315
32
TC-620 Owner’s Manual
Glossary
Name
Description
Short Press
Key press shorter than 1.5 seconds.
Long Press
Key press longer than 1.5 seconds.
Standby Status
In normal mode, no key operation is made on the
radio and the radio is in receiving status.
The setting of CTCSS/CDCSS code in transmitting
CTCSS/CDCSS
party must match that in the receiving party, for the
receiver to unmute its speaker to output audio.
The function is to save the battery power and
Battery Save
prolong the operation time. Once no activity on the
channel and no operation performed, the radio shall
be on and off alternately.
Time-out Timer (TOT)
The time-out timer feature stops someone from
talking too long and tying up the channel.
The purpose of squelch is to mute audio output
Squelch
from the speaker when no signals are present.
Open the squelch to unmute radio speaker.
Squelch Off
Always unmute speaker to receive audio as well as
background noise.
Carrier condition must be satisfied for the radio to
Monitor
unmute
to
an
incoming
call,
regardless
of
CTCSS/CDCSS condition.
Momentary
Steady
Scan
Holds down the function key to activate the status,
and release it to exit.
Press the function key to activate the status, and
press it again to exit.
The scan feature enables the radio to continuously
33
TC-620 Owner’s Manual
scan each channel for activity.
Avoid interference with the users using the same
Busy Channel Lockout
channel by preventing transmission if another talk
group is already on the air.
VOX
The radio will automatically begin transmitting when
you speak.
HYT endeavors to achieve the accuracy and completeness of this manual, but no warranty of
accuracy or reliability is given. All the above specifications and design are subject to change
without notice due to continuous development.
No part of this manual may be copied, reproduced, translated, stored in a retrieval system,
distributed, or transmitted in any form or by any means, electronic or mechanical, for any
purpose without the express written permission of HYT.
34
This device complies with Part 15 of the FCC rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must except any interference received,
including interference that may cause undesired operation.
SAFETY TRAINING INFORMATION
Your HYT radio generates RF electromagnetic energy during transmit mode. This radio is designed
for and classified as “Occupational Use Only”,
meaning it must be used only during the course of
employment by individuals aware of the hazards,
W AR N IN G
and the ways to minimize such hazards. This radio
is NOT intended for use by the “General Population” in an uncontrolled environment.
This radio has been tested and complies with the FCC RF exposure limits for “Occupational Use Only.” In addition, your HYT radio
complies with the following Standards and Guidelines with regard to
RF energy and electromagnetic energy levels and evaluation of
such levels for exposure to humans:
• FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating
Compliance with FCC Guidelines for Human Exposure to Radio
Frequency Electromagnetic Fields.
• American National Standards Institute (C95.1–1992), IEEE Standard for Safety Levels with Respect to Human Exposure to Radio
Frequency Electromagnetic Fields, 3 kHz to 300 GHz.
• American National Standards Institute (C95.3–1992), IEEE Recommended Practice for the Measurement of Potential y Hazardous
Electromagnetic Fields— RF and Microwave.
To ensure that your exposure to RF electromagnetic energy is within the FCC allowable limits for
occupational use, always adhere to the following
C AU TIO N
guidelines:
• DO NOT operate the radio without a proper antenna attached, as
this may damage the radio and may also cause you to exceed FCC
RF exposure limits. A proper antenna is the antenna supplied with
this radio by the manufacturer or an antenna speci cally authorized
by the manufacturer for use with this radio.
• DO NOT transmit for more than 50% of total radio use time (“50%
duty cycle”). Transmitting more than 50% of the time can cause
FCC RF exposure compliance requirements to be exceeded. The
radio is transmitting when the “TX indicator” lights red. You can
cause the radio to transmit by pressing the “PTT” switch.
Body-worn operations are restricted to belt-clips, holsters or similar accessories
that have no metallic component in the assembly and that provide at least 1.5
cm separation between the device, including its antenna, and the user's body.
To provide the recipients of your transmission the best
sound quality, hold the antenna at least 5 cm (2 inches) from
mouth, and slightly off to one side.
The information listed above provides the user with the information
needed to make him or her aware of RF exposure, and what to do
to assure that this radio operates within the FCC RF exposure limits of this radio.
Electromagnetic Interference/Compatibility
During transmissions, your HYT radio generates RF energy that
can possibly cause interference with other devices or systems. To
avoid such interference, turn off the radio in areas where signs are
posted to do so. DO NOT operate the transmitter in areas that are
sensitive to electromagnetic radiation such as hospitals, aircraft,
and blasting sites.
ii
FOREWORD
Thank you for purchasing the TC-620U(2)
transceiver.
READ ALL INSTRUCTIONS carefully and completely before using
the transceiver.
SAVE THIS INSTRUCTION MANUAL–This instruction manual
contains important operating instructions for the transceiver.
INSTALLATION NOTES
• Body-worn operations are restricted to belt-clips, holsters or similar
accessories that have no metallic component in the assembly and
that provide at least 1.5 cm separation between the device, including
its antenna, and the user's body
• If you wear a portable two-way radio on your body, ensure that the
antenna is at least 2.5 centimeters (1 in.) from your body when transmitting.
IMPORTANT
R CAUTION! NEVER hold the transceiver so that the antenna is
very close to, or touching exposed parts of the body, especially the
face or eyes, while transmitting. The transceiver will perform best if
the microphone is 2 to 4 in. (5 to 10 cm) away from the lips and the
transceiver is vertical.
R CAUTION! NEVER operate the transceiver with a headset or
other audio accessories at high volume levels.
R CAUTION! NEVER short the terminals of the battery pack.
DO NOT push the PTT when not actually desiring to transmit.
iii
AVOID using or placing the transceiver in direct sunlight or in areas
with temperatures below +14°F (–10°C) or above +122°F (+50°C).
The basic operations, transmission and reception of the transceiver,
are guaranteed within the specified operating temperature range
(depending on version). However, the LCD display may not be operate correctly, or show an indication in the case of long hours of
operation, or after being placed in extremely cold areas.
DO NOT modify the transceiver for any reason.
KEEP the transceiver from the heavy rain, and Never immerse it in
the water. The transceiver construction is water resistant, not waterproof.
The use of non-HYT battery packs/chargers may impair transceiver
performance and invalidate the warranty.
iv

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