HQT Analog Series QD446



HQT QD446 is a licence-free radio compliant with PMR 446 standards, which brings convenience and management efficiency to our customers. It shows incredible long working period with 2000mAh Li-ion battery. A powerful MCU also ensures its diversified functions. Fashionable design with compact size and light weight makes it an ideal model for customers in retailing, education, supermarket, hotel and restaurant. Outstanding performance of QD446 will definitely bring you more than what you expected.   
  • VOX;
  • Scan;
  • Monitor;
  • Wired Clone;
  • Battery Power Indication;
  • Busy Channel Lockout (BCL).
TI OMAP SERIES is recommended for customized needs and requirements.

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Main Functions

The QD446 VOX function enables users to keep communicating with group members while users' hands are occupied.
Busy Channel Lockout (BCL)
BCL is used to protect the on-going conversation from unwanted interference.
CTCSS/CDCSS encode and decode are useful to avoid unwanted conversation on the same channel.
Wired Clone
To quickly set the parameters on a radio, users can clone the radio data from another radio with the supplied data cable, which can save the time of parameters setting.
Battery Power Indication
HQT QD446 will report current battery power when the corresponding function key is pressed. It also reminds users to replace or charge the battery if the battery power is low.
This feature enables user to hear weak signals. User can adjust volume by pressing MONI key when no signals are received.
The licence-free radio provides two channel scanning modes which are TO(time operation) and CO(carrier operation). The two different modes are used according to different situations.


Frequency Range 446.00625 ~ 446.09375MHz
Channel Capacity 16(15+S)
Channel Spacing 12.5kHz
Frequency Stability ±1.5ppm
Operating Temperature -25℃ ~ +55℃
Antenna Impedance 50Ω
Operating Voltage 3.8V
Dimensions (H×W×D) 107×51.5×28mm
Weight (With Antenna & Battery) 160g
Battery 2000mAh
Sensitivity 0.20μV
Adjacent Channel Selectivity 60dB
Intermodulation Rejection 65dB
Spurious Response Rejection ≥60dB
S/N ≥40dB
Rated Audio Power Output ≥600mW
Rated Audio Distortion ≤5%
RF Power 0.5W
Modulation Type 8KΦF3E
Modulation Limiting ≤2.5kHz@12.5kHz
FM Distortion ≤5%
Residual FM -40dB
Adjacent Channel Power -60dB
Spurious and Harmonics -36dBm(<1GHz)/-30dBm(>1GHz)

All specifications are tested according to applicable standards and subject to changes without notice due to continuous development.

Accessory List

Standard Accessories
Battery Charge Adapter Desktop Charger Belt Clip Hand Strap
Optional Accessories
Earphone Remote Microphone Programming Cable Leather Case
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