HYT Science and Technology Co TC2108U Two Way Radio User Manual
Shenzhen HYT Science &Technology; Co Ltd Two Way Radio
User Manual
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THANK YOU!
We are grateful for your purchase of HYT product. We believe this easy–to-use radio will provide you
with dependable and reliable communications. This HYT portable two-way radio is a precision device.
Treat it with care, and you will enjoy years of reliable operation.
MODELS COVERED IN THIS MANUAL
TC2108U: UHF Two-way Radio
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User Safety Information
PLEASE READ THIS IMPORTANT INFORMATION BEFORE USING YOUR HYT PORTABLE
TWO-WAY RADIO.
◇ Only qualified technicians are allowed to maintain this product.
◇ To avoid electromagnetic interference, turn off your radio in places where posted notices
instruct you to do so. Hospitals or health care facilities may be using equipment that is
sensitive to external RF energy. When travelling on aircraft, turn off your radio when the
airline crew instructs you to do so.
◇ When in vehicles equipped with an air bag, do not place a portable radio in the airbag
deployment area.
◇ Turn off your radio prior to entering any area with a potentially explosive atmosphere. Do not
remove, install, or charge batteries in such areas.
◇ To avoid possible interference with blasting operations, turn off your radio when you are near
electrical blasting caps.
◇ Do not use any portable radio that has a damaged antenna. If a damaged antenna comes
into contact with your skin, a minor burn may result.
◇ Do not expose the radio to direct sunlight for long periods of time. Do not place the radio in
direct contact with any heating source.
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CONTENTS
Product Inspection
Battery Charging Information
Accessory Information
Battery
Antenna
Belt Clip
Getting Started
LCD Display
Basic Operations
Features
Monitor
Channel Scan
Priority Channel Scan
Scan Revert Channel
Selectable CTCSS/CDCSS
Selectable Squelch Level
High/Low power
Key lock
Time Out Timer (TOT)
Battery Save
Low Battery Alert
Busy Channel Lockout
Backlight
Troubleshooting Guide
Optional Accessories
Care and Cleaning
CTCSS/CDCSS table
Frequency Chart
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Product Inspection
Thank you for your purchase of HYT portable two-way radio model: TC2108. Before use, please
inspect the product as follows.
First check the shipping carton for any signs of damage. If any damage has occurred, please contact
your dealer immediately. Confirm the supplied product against the packing slip to assure accuracy.
Available Accessories
Part number Item Qty.(pcs)
Antenna* 1
Adapter 1
Li-ion Battery 1
Belt Clip 1
Owner’s Manual 1
Charger cup 1
*Notes: Antenna mark: TC2108-U (1), TC2108H-U (1): Green;
TC2108-U (2), TC2108H-U (2): White;
TC2108-V (2), TC2108H-V (2): Dark Red.
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Battery Charging Information
Standard Charger
1. Insert the radio and battery or battery alone into the charging cup.
Charging begins and the red LED will light continuously. When the
charging cycle is complete, the red LED will change to green. Charging
time is less than 2.5 hours.
2. After the battery is fully charged, the charger will shut off
automatically.
3. A flashing red LED indicates an abnormal charging condition, which
can be caused by an old battery or a defective battery. Contact your
dealer for instructions.
Notes:
Batteries should be charged in a dry environment at room temperature.
If the battery cannot reach normal capacity after charging, you need to replace the battery.
Do not short out the battery terminals or dispose of the battery by fire.
Accessory Information
Battery
Attaching the Battery (See figure○
1)
1, Insert the tabs, at the bottom of the battery, into the slots at the
bottom of the radio chassis..
2, Press the top of the battery towards the radio until a click is
heard.
Removing the Battery (See figure○
2)
1, Turn off the radio.
2, Push the battery latch on the back panel, towards the top of the radio.
3, Pull the top of the battery away from the radio chassis, and lift the
battery from the radio.
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Antenna
Attaching the Antenna (See figure○
3)
1, Align the threaded end of the antenna with the radio’s antenna
connector.
2, Turn the antenna clockwise to tighten.
Removing the Antenna (See figure○
4)
1.Turn the antenna counter-clockwise until you can remove it.
Belt Clip
Attaching the Belt Clip (See figure○
5)
1, Align the grooves of the belt clip with those of the battery.
2, Press the belt clip down until a click is heard.
Removing the Belt Clip (See figure○6)
1, Pry the belt clip tab away from the battery.
2, Slide the belt clip upwards to remove it. .
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Getting Started
1. Antenna
Used to receive or transmit signals.
2. LCD
Displays operation status of the radio.
3. LED indicator
In transmit mode, the red LED will turn on. In receive mode, the green LED will turn on. A flashing
red LED indicates that the battery is low.
4. POWER/VOL Knob
Rotate the volume control clockwise to turn the unit on, fully counter clockwise to turn the unit off.
Increase or decrease volume by adjusting the volume control accordingly.
5. Down key
Adjust the channel downwards.
6. SCAN key
Press the scan key to activate the scan mode. When the radio detects properly coded activity on a
channel, it will stop scanning and listen to that channel.
7. Up key
Adjust the channel upwards.
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8. PTT button
To transmit, press and hold PTT button. To receive, release PTT button.
9. MONI button
In receive mode, press the MONI key to monitor other activity on your selected channel .
10. Microphone
When transmitting, speak into the microphone holding the radio 2-4 inches from your mouth.
11. jack
Used to connect external earphone/microphone accessories.
12. Speaker
Listen to received audio.
13. DC Jack
Used for factory adjustment only.
14. Battery latch
Used to fasten and remove the battery.
15. Belt clip
Used to clip radio on your belt.
16. Battery pack
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LCD Display
1. Appears when the transmit power of the current channel is set for low power.
2. Appears when the dealer disables the radio’s speaker. (Must use audio accessory to operate.)
3. Appears when the keys are locked.
4. Display the current channel number.
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Basic Operations
To Turn On the Radio
Turn the POWER/VOL knob clockwise until a click is heard.
To Receive
1. Press UP or DOWN key to select the desired channel.
2. Turn POWER/VOL knob to adjust the volume. Pressing the MONI key will provide noise so that
the volume can be adjusted accordingly.
Now if the radio receives a signal with CTCSS/CDCSS matching with that set in the radio, the speaker
will output audio.
To Transmit
1. Press the UP or DOWN key to select the desired channel.
2. To avoid interfering with other users, press the MONI key to monitor activities on your channel
and make sure the channel is idle before transmitting.
3. To transmit, press and hold the PTT button, speak clearly into the microphone with the radio 2 to
4 inches away from your mouth. To receive, release the PTT button. When the PTT button is
pressed, the red LED will Light until the PTT button is released or until the transmit time out timer
expires.
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Features
Monitor
Press the MONI button to monitor any activity on the channel. Wait for this activity to clear before
transmitting.
Channel Scan
Channel scan is set to monitor desired activities on all channels in scan list. When channel scan is
enabled, the radio will automatically scan all channels in scan list until activity is detected on a channel.
The scanning will then stop and the receive audio will be heard.
When scanning stops on an active channel, it will restart in the preset restart mode that is set by the
dealer. Scan restart mode can be either Time operated scan or Carrier operated scan.
①Time Operated Scan
If scanning stops on an active channel, and continues to listen for a preset period (the time is preset by
the dealer), it will begin scanning other channels even if there is still activity on the channel.
②Carrier Operated Scan
Scan will lock in on the busy channel until there is no activity.
Channel Scan Operations
1. Press SCAN key
Scan starts from the current channel and then scrolls all selected channels in sequence.
2. Press UP or DOWN key to change channel scan sequence. Press the UP key; radio skips the
current channel and scans other selected channels in ascending order; press the DOWN key;
radio skips the current channel and scans other selected channels in descending order.
3. Press SCAN key again, scan stops.
4. Adding or deleting a channel in/from the scan list. The dealer can add or delete a channel in/from
the scan list. Only channels in the scan list can be scanned.
Priority Channel Scan
If your dealer has set a priority channel, when radio scans non-priority channels, it will periodically
sample the priority channel. If desired activity is detected on the priority channel, it will switch to the
priority channel for communications.
Scan Revert Channel
The scan revert channel feature allows you to transmit on the proper channel while initiating a call
during channel scan. Press [PTT] button, radio stops scanning and transmits on the revert channel.
This feature is set by the dealer.
Selectable CTCSS/CDCSS
CTCSS/CDCSS feature is used to avoid receiving unwanted signals on the same channel. When
CTCSS/CDCSS is enabled, the radio only allows audio with the same CTCSS/CDCSS code to
activate the speaker. If CTCSS/CDCSS is disabled, the radio will hear all calls on the same channel.
When the dealer allows CTCSS/CDCSS to be selectable by the end user, the operations are as
follows:
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Press the [UP] key while holding down the [MONI] key to enter CTCSS/CDCSS set mode.
In this mode, press [UP] or [DOWN] to select CTCSS/CDCSS.
Press [SCAN], LCD display toggles between OFF/CTCSS/CDCSS/-CDCSS:
CTCSS/CDCSS OFF: 00
CTCSS: 01— 38
CDCSS: 01— 83
-CDCSS: -01— -83
OFF
CTCSS
CDCSS
-CDCSS
Please refer to CTCSS/CDCSS table.
Press [UP] while holding down [MONI] to exit CTCSS/CDCSS mode.
Note: Though CTCSS/CDCSS feature can prevent you from receiving unwanted signals; it
doesn’t mean your calls are absolutely private.
Selectable squelch level
If this feature is enabled by the dealer, then
Press the [DOWN] key while holding down the [MONI] key to enter squelch level set mode. In this
mode, press [UP]/[DOWN] to select the level, 0—9.
Press [PTT] or [MONI] or [SCAN] to exit the mode.
High/Low power
If this feature is enabled by the dealer, then
While holding down [PTT], press [MONI] to toggle the power of the current channel between high and
low.
When the power is low, “Lo” will be displayed on LCD.
Key lock
The key lock feature is designed to avoid accidental pressing of keys. If this feature is enabled by
the dealer,
The operation procedures are as follows:
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1, Press [SCAN] while holding down [MONI] to lock keys. When keys are locked, [UP],[DOWN]
and [SCAN] keys are inoperable, but [PTT] and [MONI] keys will still function.
2, Press [SCAN] while holding down [MONI] to unlock keys.
3, lock symbol appears on LCD:
Time Out Timer (TOT)
Time Out Timer is to prevent user from transmitting on the same channel for extended periods of time.
This also protects the radio from damage caused by accidental transmissions.
If transmission exceeds the preset time, (the TOT time can be preset by the dealer), the radio will stop
transmitting and return to the receive mode. Alert beeps will sound to indicate the halt in transmission.
Releasing the PTT button will cause the beeps stop.
Battery Save
While no activity is on channel and no operation is performed for 5 seconds, the Battery Save feature
will automatically be switched on to reduce power consumption. When a signal is received or an
operation is performed, the Battery Save feature is automatically switched off.
Low Battery Alert
When the battery voltage becomes low, the red LED will flash and beeps are sounded. You need to
replace or charge the battery.
Busy Channel Lock Out
If the selected channel is set for busy channel lock out, by your dealer, you cannot transmit when
there is activity on that channel. If you press the PTT button, the radio will sound beeps and will
stay in the receive mode.
Backlight
This feature can be enabled by the dealer.
When this feature is enabled, pressing any key except the PTT will illuminate the display. The display
will stay lit for 5 seconds.
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Troubleshooting Guide
Please check the following items before requesting service.
1. Review operation procedures.
2. Replace or recharge the battery.
3. If reception is poor, check the antenna to make sure it is undamaged and operating in a vertical
position.
4. Try another location with fewer obstructions.
5. If you cannot communicate with your group members, make sure you are using the same
frequency and CTCSS/CDCSS.
6. If you hear other conversations on your channel, change your CTCSS/CDCSS. Remember to
change CTCSS/CDCSS of your other group members.
Optional Accessories
Earphone
Speaker mic
Headset (many options)
Leather Case
Care and Cleaning
◇ Do not carry your radio by the antenna or remote microphone.
◇ Wipe the battery contacts with a lint-free cloth to remove dirt, grease, or other material that
may prevent good electrical connection.
◇ When not in use, keep the accessory jacks covered with the protective cap.
◇ If cleaning the radio housing becomes necessary, use a cloth or paper towel dampened with
a non-abrasive cleaner. Glass cleaner works well. Avoid using strong chemicals. DO NOT
submerge in water.
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CTCSS/CDCSS Table
CTCSS
NO Freq(Hz) NO Freq(Hz) NO Freq(Hz)
00 NO TONE 13 103.5 26 162.2
01 67.0 14 107.2 27 167.9
02 71.9 15 110.9 28 173.8
03 74.4 16 114.8 29 179.9
04 77.0 17 118.8 30 186.2
05 79.7 18 123.0 31 192.8
06 82.5 19 127.3 32 203.5
07 85.4 20 131.8 33 210.7
08 88.5 21 136.5 34 218.1
09 91.5 22 141.3 35 225.7
10 94.8 23 146.2 36 233.6
11 97.4 24 151.4 37 241.8
12 100.0 25 156.7 38 250.3
CDCSS
NO CODE NO CODE NO CODE
01 023 29 174 57 445
02 025 30 205 58 464
03 026 31 223 59 465
04 031 32 226 60 466
05 032 33 243 61 503
06 043 34 244 62 506
07 047 35 245 63 516
08 051 36 251 64 532
09 054 37 261 65 546
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10 065 38 263 66 565
11 071 39 265 67 606
12 072 40 271 68 612
13 073 41 306 69 624
14 074 42 311 70 627
15 114 43 315 71 631
16 115 44 331 72 632
17 116 45 343 73 654
18 125 46 346 74 662
19 131 47 351 75 664
20 132 48 364 76 703
21 134 49 365 77 712
22 143 50 371 78 723
23 152 51 411 79 731
24 155 52 412 80 732
25 156 53 413 81 734
26 162 54 423 82 743
27 165 55 431 83 754
28 172 56 432
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FCC Compliance
Part 15 Compliance
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
Consult the dealer or an experienced radio/TV technician for help.
Modifications not authorized by the manufacturer may void users authority to operate this
device.
FCC Licensing Requirements
Your radio must be properly licensed Federal Communications Commission prior to use. Your
HYT Wireless dealer can assist you in meeting these requirements. Your dealer will program
each radio with your authorized frequencies, signaling codes, etc., and will be there to meet
your communications needs as your system expands.
Precautions
• Only qualified technicians are allowed to maintain this product.
• Do not use the radio or charge a battery in explosive areas such as coal gas, dust, steam,
etc.
• Switch OFF the radio while refueling or parking at gas station.
• Do not modify or adjust this radio for any reason.
• Do not expose the radio to direct sunlight over a long time, nor place it close to heating
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source.
• Do not place the radio in excessively dusty, humid areas, nor on unstable surfaces.
• The SAR measured values of this equipment are: of body-worn is 1.525 mW/g and face-held is
0.975mW/g.
• Hold the radio in one to two inches (2.5 to 5 cm) away from your lips.
• If the ambient temperature is over-high to the degree that PCB board reaches 85℃ during
transmitting process, the transmitting power of the radio will decrease.
Safety: It is important that the operator is aware of and understands hazards common to the
operation of any radio.