Please contact our sales consultants for more product information. Get Support >>
DH-3990 can operate in either analog or digital mode. It is compatible with the prevalent analog system, ensuring a smooth analog-to-digital transition.
High Cost PerformanceHQT DH-3990 is a professional digital portable radio which is reliable and safe. Its ergonomic design makes it easy to carry and hide.
Maximum EfficiencyDH-3980 adopts TDMA technology which ensures high-efficient frequency coverage and control mode of RF power, and its battery life is 40% longer when it is operated in digital mode than that in analog mode.
Better and Clearer CommunicationDH-3990 adopts digital technologies which effectively control background noise and squelch during voice transmission, so that it can transmit clear and desired voice.
Secure CommunicationDH-3980 can control the selection of RX contact or RX group of voice in digital mode. Every DH-3980 has a unique ID, which enables users to do one-to-one conversation which will not be received by others. Besides, it supports digital voice encryption in digital mode.
VOX;
Voice Prompts;
Channel Scan;
Emergency Alarm;
Programmable Key;
TOT (Time Out Timer);
Upgradeable Software;
Dual Modes (Analog+ Digital);
Signaling: DTMF Encode, QT/DQT;
Voice Call Types: Private Call, Group Call and All Call;
Radio Disable, Radio Enable, One Touch Call, Remote Monitor.
General
| Frequency Range |
VHF: 136-174MHz UHF: 400-470MHz |
| Channel Capacity/Zone Capacity |
1024(64 Zones×16 Channels) |
| Channel Spacing |
25kHz/12.5kHz |
| Battery | 2200mAh |
| Dust & Water Protection | IP54 |
| Operating Temperature | -25℃~+55℃ |
| Voltage | 7.5V |
|
Dimensions (H×W×D) |
113×54×38mm |
|
Weight |
233g |
| Receiver | |
|---|---|
| Sensitivity | Analog SINAD: 0.22μV/Digital 5%BER:0.22μV |
| Adjacent Channel Selectivity |
60dB@12.5kHz / 70dB@25kHz |
|
Intermodulation |
65dB |
| Spurious Response Rejection | 70dB |
| Hum and Noise | -40dB@12.5kHz /-45dB@25kHz |
| Conducted Spurious Emission | ≤-57dBm |
| Audio Response |
+1~-3dB |
| Audio Power Output |
700mW(Max) |
| Transmitter | |
| RF Power |
UHF High Power: 4W /Low Power: 1W VHF High Power:5W /Low Power:1W |
| Modulation Limiting |
≤2.5kHz @ 12.5kHz ≤5kHz @ 25kHz |
| Conducted/Radiated Emission | ≤-36dBm(<1GHz) / -30dBm(>1GHz) |
| Adjacent Channel Power | 60dB @ 12.5kHz/70dB @ 25kHz |
| Audio Response | +1~-3dB |
| Audio Distortion | ≤3% |
| Frequency Stability |
±1.5ppm |
| FM Modulation |
11KΦF3E @ 12.5kHz 16KΦF3E @ 25kHz |
| 4FSK Digital Modulation |
12.5kHz Data: 7K60F1D and 7K60FXD 12.5kHz Voice: 7K60F1E and 7K60FXE 12.5kHz Voice&Data: 7K60F1W |
| Digital Vocoder Type | AMBE+2TM |
| Digital Protocol | ETSI TS102 361-1.-2.-3 |
All specifications are tested according to applicable standards and subject to changes without notice due to continuous development.
