HYT TC-446S User manual

TC-446S Owner’s Manual
1
Instructional Icons
The following icons are available through this manual:
Caution: indicates situations that could cause damage to your product.
Note: indicates tips that can help you make better use of your product.
Term Explanation
Please pay your attention to the following key terms:
Key Operation
Short press: to press a key and release it quickly.
Long press: to press and hold down a key for above 1 second.
Hold down: to press a key and remain holding it down.
User Mode
User mode is the operation mode you enter by powering on the radio.
CTCSS/CDCSS
This technology can avoid unwanted calls at the same frequency.

TC-446S Owner’s Manual
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Copyright Information
Hytera and HYT are trademarks or registered trademarks of Hytera Communications Co., Ltd. (“Hytera”)
in PRC and/or other countries or areas. Hytera retains the ownership of its trademarks and product
names.All other trademarks and/or product names that may be used in this manual are properties of
their respective owners.
The Hytera product described in this manual may include Hytera computer programs stored in memory
or other media. Laws in PRC and/or other countries or areas protect the exclusive rights of Hytera with
respect to its computer programs. The purchase of this product shall not be deemed to grant, either
directly or by implication, any rights to the purchaser regarding Hytera computer programs.Any Hytera
computer programs may not be copied, modified, distributed, decompiled, or reverse-engineered in any
manner without the prior written consent of Hytera.
Disclaimer
Hytera endeavors to achieve the accuracy and completeness of this manual, but no warranty of
accuracy or reliability is given. All the specifications and designs are subject to change without notice
due to continuous technology development. No part of this manual may be copied, modified, translated,
or distributed in any manner without the express written permission of Hytera.
If you have any suggestions or would like to learn more details, please visit our website at:
http://www.ortadogutelsiz.com

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RF Energy Exposure Compliance
Your product is designed and tested to comply with a number of national and international standards and
guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy. This
product complies with the IEEE and ICNIRP exposure limits for occupational/controlled RF exposure
environment at operating duty factors of up to 50% transmitting and is authorized by the FCC for
occupational use only. In terms of measuring RF energy for compliance with the FCC exposure
guidelines, your product radiates measurable RF energy only while it is transmitting (during talking), not
when it is receiving (listening) or in standby mode.
Your product complies with the following of RF energy exposure standards and guidelines
United States Federal Communications Commission, Code of Federal Regulations; 47CFR part
2 sub-part J
American National Standards Institute (ANSI)/Institute of Electrical and Electronic Engineers
(IEEE) C95. 1-1992
Institute of Electrical and Electronic Engineers (IEEE) C95. 1-1999 Edition
International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998
Operational Instructions and Training Guidelines
To ensure optimal performance and compliance with the occupational/controlled environment RF energy
exposure limits in the above standards and guidelines, users should transmit no more than 50% of the
time and always adhere to the following procedures:
Transmit and Receive
To transmit (talk), push the Push-To-Talk (PTT) key; to receive, release the PTT key.
FCC Licensing Information
Part 15 Compliance
This product 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 product 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 product does cause harmful interference to radio or television reception, which can be

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determined by turning the product 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 product and receiver.
Connect the product 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.
FCC Licensing Requirements
A license from Federal Communications Commission is required prior to use. Your dealer will program
each product with your authorized frequencies, signaling codes, etc., and will be there to meet your
communications needs as your system expands. Contact your dealer for more information.
EU Regulatory Conformance
The product is in compliance with the essential requirements and other relevant provisions of the
Directive 1999/5/EC.
Note: The above information is applicable to EU countries only.

TC-446S Owner’s Manual
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Contents
Checking Items in the Package.................................................................................................................. 6
Product Overview....................................................................................................................................... 7
Product Controls ................................................................................................................................. 7
Programmable Keys............................................................................................................................ 8
Before Use.................................................................................................................................................. 9
Charging the Battery........................................................................................................................... 9
Assembling the Accessories............................................................................................................. 10
Status Indication....................................................................................................................................... 12
Basic Operations...................................................................................................................................... 13
Turning the Radio On/Off.................................................................................................................. 13
Adjusting the Volume........................................................................................................................ 13
Selecting a Channel.......................................................................................................................... 13
Transmitting/Receiving...................................................................................................................... 13
Functions and Operations........................................................................................................................ 14
CTCSS/CDCSS ................................................................................................................................ 14
Time-out Timer (TOT)........................................................................................................................ 14
Monitor .............................................................................................................................................. 14
Squelch Off........................................................................................................................................ 15
Scan.................................................................................................................................................. 15
VOX................................................................................................................................................... 16
Battery Strength Indicator ................................................................................................................. 17
Low BatteryAlert............................................................................................................................... 17
Channel Lock .................................................................................................................................... 17
Battery Save...................................................................................................................................... 18
Busy Channel Lockout...................................................................................................................... 18
Troubleshooting........................................................................................................................................ 19
Care and Cleaning ................................................................................................................................... 20
Optional Accessories................................................................................................................................ 21

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Checking Items in the Package
Please unpack carefully and check that all items listed below are received. If any item is missing or
damaged, please contact your dealer.
Battery Rapid-rate Charger Power Adapter
Belt Clip Strap
Owner’s Manual & Safety Information Booklet Radio Unit
Note: The pictures are for reference only.

TC-446S Owner’s Manual
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Product Overview
Product Controls
6
5
4
7
8
11
14
15
16
17
1
2
3
9
10
12
13
No.
Part Name
No.
Part Name
○
1
PTT Key
○
10
Battery Latch
○
2
SK1 (programmable)
○
11
Accessory Jack Cover
○
3
SK2 (programmable)
○
12
Accessory Jack

TC-446S Owner’s Manual
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○
4
Antenna
○
13
Strap Hole
○
5
Channel Selector Knob
○
14
Belt Clip
○
6
Radio On-Off/Volume
Control Knob
○
15
Battery
○
7
Speaker
○
16
Screw of Belt Clip
○
8
Microphone
○
17
Charging Piece
○
9
LED Indicator
Programmable Keys
For enhanced convenience, you may request your dealer to program the keys SK1 and SK2 as shortcut
to the functions listed below:
No.
Shortcut Key
Function
1
Monitor
To adjust the condition for incoming signal
match.
2
Monitor Momentary
3
Squelch Off
To always unmute speaker no matter
whether carrier is present or not.
4
Squelch Off Momentary
5
Scan
To listen to communication activities on
other channels.
6
VOX
To make the radio transmit automatically
when you speak.
7
Battery Strength Indicator
To indicate the charge remaining in the
battery.
8
Channel Lock
To lock the current channel.
Note: Long and short press of the key can be assigned with different functions by your dealer.

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Before Use
Charging the Battery
Use only the charger and battery specified by Hytera. Charger LED can indicate the charging process.
■ Charge Diagram
3
3
2
1
■ Procedures
1. Connect the power adapter to AC source. See arrow 1;
2. Plug the power adapter into the rear socket of the charger. See arrow 2;
3. Place the radio with the battery attached, or the battery alone, into the charger; See arrow 3;
4. The charging process initiates when LED glows red, and is completed when LED glows green.
Note: To achieve optimal battery performance, please charge the battery for 5 hours before initial
use.
■ Charge Indicator
LED Indicator
Charge Status
Red LED glows.
Charging
LED solidly glows orange.
About fully charged
LED solidly glows green.
Fully charged

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When battery power runs low, the LED will flash red, and the low-pitched tone will sound periodically. In
this case, please replace or charge the battery.
Caution: Be sure to read the Safety Information Booklet, to get necessary safety information.
Assembling the Accessories
Attaching the Battery
1. Push the battery into the radio’s slot;
2. Slightly press the bottom of the battery until a click is heard.
To remove the battery, turn off the radio first. Then slide the battery latch upward to release the battery.
Attaching the Belt Clip
1. Remove the screws;
2. Align the screw holes on the belt clip with those on the radio’s body, and then tighten the screws.
To remove the belt clip, loosen the screws.