HYT TC-300 User manual

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Preface
Thank you for your purchase of the HYT TC-300 Business Radio. TC-300 is unique for its
compact and delicate body. The customized wrist strap will give you exceptional
experience of portability, which especially suits for drivers and hotel staff.
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-300 UHF Two-way Radio

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Contents
Safety and General Information ........................................................................................ 3
Product Inspection ............................................................................................................4
Radio Overview.................................................................................................................5
Battery Information............................................................................................................7
Antenna Information........................................................................................................ 12
Assembly and Disassembly............................................................................................12
Attaching/Removing the Battery............................................................................... 12
Attaching/Removing the Antenna............................................................................. 16
Attaching/Removing the Belt Clip............................................................................. 17
Attaching/Removing the Earpiece/Microphone........................................................19
General Radio Operations ..............................................................................................20
Turning the Radio On/Off.........................................................................................20
Adjusting the Volume............................................................................................... 21
Selecting a Channel.................................................................................................21
Transmitting.............................................................................................................22
Receiving................................................................................................................. 22
Programmable Auxiliary Functions.................................................................................. 22
Advanced Operations...................................................................................................... 23
CTCSS/CDCSS.......................................................................................................23
Battery Save ............................................................................................................23
Power Adjust............................................................................................................ 24
Time-out Timer (TOT) ..............................................................................................24
Battery Strength Indicator ........................................................................................24
Monitor.....................................................................................................................25
Scan......................................................................................................................... 25
Busy Channel Lockout (BCL)...................................................................................27
Low Battery Alert...................................................................................................... 27
VOX (Voice-Operated Transmit) ..............................................................................27
Troubleshooting .............................................................................................................. 28
Care and Cleaning..........................................................................................................29
Optional Accessories....................................................................................................... 29
Glossary..........................................................................................................................30

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Safety and General Information
SAFETYTRAINING 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, 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 Potentially Hazardous Electromagnetic Fields– RF and
Microwave.
The following accessories are authorized for use with this product. Use of accessories
other than those (listed in the instruction) specified may result in RF exposure levels
exceeding the FCC requirements for wireless RF exposure.
To ensure that your expose to RF electromagnetic energy is
within the FCC allowable limits for occupational use, always
adhere to the following guidelines:
DO NOT operate the radio without a proper antenna attached, as this may damaged
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 antenna
specifically authorized by the manufacturer for use with this radio.
DO NOT transmits 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.

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ALWAYS keep the antenna at least 2.5 cm (1 inch) away from the body when
transmitting and only use the HYT belt-clip which is listed in instructions when
attaching the radio to your belt, etc., to ensure FCC RF exposure compliance
requirements are not exceeded. To provide the recipients of your transmission the
best sound quality, hold the antenna at least 5 cm (2 inches) from your 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 as-sure that this radio operates with
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.
Occupational/Controlled Use
The radio transmitter is used in situations in which persons are exposed as consequence
of their employment provided those persons are fully aware of the potential for exposure
and can exercise control over their exposure.
IMPORTANT
READ ALL INSTRUCTIONS carefully and completely before using the
transceiver
SAVE THIS INSTRUCTION MANUAL-This instruction manual contains
important operating instructions for the Two-Way Radio
EXPLICIT DEFINITIONS
WORD DEFINITION
WARNING Personal injury, fire hazard or electric shock
may occur.
CAUTION Equipment damage may occur.
NOTE If disregarded, inconvenience only. No risk
of personal injury, fire or electric shock.

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OPERATING NOTES
When transmitting with a portable radio, hold the radio in a vertical position with its
microphone 5 to 10 cm (2 to 4 inches) away from your mouth. Keep the antenna at
least 2.5 cm (1 inch) from your head and body.
If you wear a portable two-way radio on your body, ensure that the antenna is at least
2.5 centimeters (1 inch) from your body when transmitting.
PRECAUTIONS
WARNING! 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 5 to 10 cm (2 to 4 inches) away
from the lips and the transceiver is vertical.
WARNING! NEVER operate the transceiver with a headset or other audio accessories
at high volume levels.
CAUTION! NEVER short the terminals of the battery pack.
NEVER connect the transceiver to a power source other than the Battery listed below
Such a connection will ruin the transceiver.
DO NOT push the PTT when not actually desiring to transmit.
AVOID using or placing the transceiver in direct sunlight or in areas with temperatures
below –30°C (–22°F) or above +60°C (+140°F).
DO NOT modify the transceiver for any reason.
MAKE SURE the flexible antenna and battery pack are securely attached to the
transceiver, and that the antenna and battery pack are dry before attachment.
Exposing the inside of the transceiver to water will result in serious damage to the
transceiver.
BE CAREFUL! The series transceivers employ waterproof construction, which
corresponds to IPX7 of the international standard IEC 60529 (2001), 1 m depth for 30
minutes. However, once the transceiver has been dropped, waterproofing cannot be
guaranteed due to the fact that the transceiver may be cracked, or the waterproof seal
damaged, etc.
The use of non-HYT battery packs/chargers may impair transceiver performance and
invalidate the warranty.
FCC CAUTION:
Changes or modifications to this device, not expressly approved by HYT, could void
your authority to operate this transceiver under FCC regulations.

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Product Inspection
Please unpack the package box carefully and check that all items shipped were received;
report any missing or damaged items to your dealer.
Accessories
Item Qty. (PCS)
Antenna 1
Strap 1
Li-Ion Battery 1
Switching Power 1
Owner’s Manual 1
Antenna Li-Ion Battery Switching Power (varying
in different countries and
regions)
Strap RO01
Note: Frequency band is marked on the label of antenna, if not, identify the frequency
band according to the color circle. Please refer to the label on the radio unit for detailed
frequency band information.

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Radio Overview
(1) PTT (Push-to-Talk) Key (2) SK (Side Key) (3) Speaker (4) Volume Adjust
Keys [+]/[-]
(5) Microphone (6) Nameplate (7) Charging Terminal (8) Antenna
(9) Power Switch (10) LED Indicator (11) Channel Selector Knob (12) Charge Indicator
(13) Accessory Jack Cover (14) Accessory Jack (15) Strap Hole (16) Screw (Belt Clip)
(17) Back Cover (18) Battery Latch
﹡PTT (Push-to-Talk) Key
Press and hold down the PTT key to transmit, and release it to receive.
﹡SK (Side Key)

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Side Key 1 is a 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:
Power up in user mode
When the radio is turned on, the power up alert tone 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.
Transmitting
LED glows red when 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.
Scanning
Green LED flashes at every 1 second, while scanning is in
process.
Scan Start Alert Tone (programmable by your dealer): a beep
is heard.
Scan Exit Alert Tone (programmable by your dealer): a beep
is heard.
Power adjust
A low-pitched tone is heard when transmit power is switched
from high power to low power.
A high-pitched tone is heard when transmit power is switched
from low power to high power.
VOX
A high-pitched tone is heard when the VOX feature is
activated.
A low-pitched tone is heard when the VOX feature is
disabled.

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*Channel Selector Knob
Rotate the knob to select from channels 1 to 16.
* Power Switch
Long press the Power Switch until an alert tone is heard to turn the radio on.
To turn the radio off, do the same as you turn it off.
* Volume Adjust Keys [+]/[-]
You may adjust the volume level through keys [+]/[-].
* Battery Latch
Used to secure or remove the battery.
* Accessory Jack
The upper jack is used to connect audio accessories, and the lower jack is used to
connect accessories such as programming cable, cloning cable and power cord.
Battery Information
Initial Use
New batteries are shipped uncharged from the factory. Charge a new battery for 5 hours
before initial use. The maximum battery capacity and performance is achieved after three
full charge/discharge cycles. If you notice the battery power runs low, please recharge the
battery.
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. To avoid risk of personal injury, do not dispose of batteries in a fire!
2. Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as
household waste.
3. Never attempt to disassemble the battery.
Battery Tips
1. When charging your battery, keep it at a temperature among 5℃- 40℃. Temperature

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out of the limit may cause battery leakage or damage.
2. When charging a battery attached to a radio, turn the radio off to ensure a full charge.
3. Do not cut off the power supply or remove the battery when charging a battery.
4. Never charge a battery that is wet. Please dry it with soft cloth prior to charge.
5. The battery will eventually wear out. When the operating time (talk-time and standby
time) is noticeably shorter than normal, it is time to buy a new battery.
To Prolong Battery Life
1. Battery performance will be greatly decreased at a temperature below 0℃. A spare
battery is necessary in cold weather. The cold battery unable to work in this situation
may work under room temperature, so keep it for later use.
2. The dust on the battery contact may cause the battery cannot work or charge. Please
use clean dry cloth to wipe it before attaching the battery to the radio.
Battery Storage
1. Fully charge a battery before you store it for a long time, to avoid battery damage due
to over-discharge.
2. Recharge a battery after several months’ storage (Li-Ion & Li-polymer batteries: 6
months), to avoid reducing battery capacity due to over-discharge.
3. Store your battery in a cool, dry place under room temperature, to reduce
self-discharge.
Charging the Battery
When the charge indicator flashes red and an alert tone sounds at intervals of ten
seconds indicating the battery power runs low, please recharge the battery. Use only the
charger specified by the manufacturer. The charger’s LED indicates the charging
progress.
Please follow these steps to charge your radio using the switching power:

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1. Plug the AC connector of the switching power into the AC outlet socket.
2. Plug the Mini USB connector of the switching power into the Mini USB jack of the
radio.
3. Make sure the radio is in well contact with the switching power. The charging process
initiates when the charge indicator glows red.
4. The charge indicator glows green when the battery is fully charged. Please remove
the radio then.
Status Charge Indicator
Battery is
charging.
Charge indicator solidly glows red.
Battery is fully
charged.
Charge indicator solidly glows green.
Please follow these steps to charge your radio using the desktop charger:

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1. Plug the AC connector of the switching power into the AC outlet socket.
2. Plug the Mini USB connector of the switching power into the Mini USB jack of the
charger.
3. Place the radio with the battery attached in the charger.
4. Make sure the radio is in well contact with the charger. The charging process initiates
when the charge indicator of the radio glows red.
5. The charge indicator of the radio glows green when the battery is fully charged.
Please remove the radio then.
Status Charge Indicator
Battery is
charging.
Charge indicator solidly glows red
Battery is fully
charged.
Charge indicator solidly glows green.
Please follow these steps to charge a battery using the desktop charger:

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1. Plug the AC connector of the switching power into the AC outlet socket.
2. Plug the Mini USB connector of the switching power into the Mini USB jack of the
charger.
3. Place the battery in the charger.
4. Make sure the battery is in well contact with the charging terminals. The charging
process initiates when the orange LED lights.
5. The greed LED lights about 3 hours later indicating the battery is fully charged.
Please remove the battery then.
Status Charge Indicator
Battery is
charging.
Orange LED solidly glows.
Standby or
Battery is fully
charged
Green LED solidly glows.

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Antenna Information
Stubby antenna is ideal for communication within limited range. Thin and long
antenna optimizes communication coverage, and its flexible and soft characteristic
makes it ideal for wearing your radio on the belt.
Communication range may vary with terrain and your operating conditions. Rainy
days or forest locations may narrow your communication range, please make
preparation in advance to avoid potential inconvenience.
Assembly and Disassembly
Attaching/Removing the BatteryAttaching the Battery
1. Hold the top part of the radio’s body, and slide the battery latch in the direction of
arrow ①, as shown in figure 1.
Figure 1
2. When the rear cover tilts with its bottom up, release the battery latch and lift the rear
cover from the radio’s body, as shown in figure 2.

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Figure 2
3. Hold the battery with the Logo side facing upwards, and insert the tab at the top of the
battery into the slots at the top of the radio’s body, as shown in figure 3. Note: Align
the discharging terminal of the battery with the radio’s charging piece.
Figure 3
4. Press the bottom of the battery towards the radio, until the battery is securely inserted
into the battery slot, as shown in figure 4.
Note: if the battery is not well locked, please remove the battery and attach it again.

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Figure 4
5. Fit the extensions at the top of the rear cover into the slots at the top of the radio’s
body, as shown in figure 5.
Figure 5
6. Slightly press the bottom of the rear cover towards the radio until a click is heard.
Note: if the rear cover is not well locked, please remove the rear cover and attach it again.

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Figure 6
Removing the Battery
1. Turn off the radio, if it is turned on. Then follow steps 1 and 2 in the section “Attaching
the Battery” to remove the rear cover.
2. Hold the top part of the radio's body, and lift the battery by the notch at its bottom, and
then remove the battery from the radio’s body, as shown in figure 1.
Figure 1

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Attaching/Removing the Antenna
Attaching the Antenna
1. Align the threaded end of the antenna with the radio’s antenna connector.
2. Turn the antenna clockwise to fasten it.
Removing the Antenna
Turn the antenna counter-clockwise until you can remove it.

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Attaching/Removing the Belt Clip
Attaching the Belt Clip
1. Align the D-tab at the bottom of the belt clip with the D-slot at the back of the radio’s
body. Then secure the belt clip on the back of the radio's body (rotate the belt clip if
necessary), as shown in figure 1. Align the belt clip screw with the threaded hole on
the radio, and then secure the screw.
Figure 1
2. Rotate the belt clip 90 degrees to a normal use position, as shown in figure 2.
Figure 2

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Removing the Belt Clip
Rotate the belt clip 90 degrees, and turn the screwdriver counter-clockwise to loosen the
screw. Please refer to the operations for attaching the belt clip, as shown in figure 3.
Figure 3
Attaching/Removing the Battery When the Belt Clip is Attached
When the belt clip is attached to the radio, please first rotate the belt clip 90 degrees (as
shown in figure 1 and 2), and then attach/remove the rear cover and battery by the steps
mentioned above.
Figure 1