The ZKManet4271 is a portable MESH narrowband base station specifically engineered for emergency situations, enabling quick deployment. Constructed with an all-cast aluminum framework that adheres to -grade quality standards, this device is IP67 rated for dust and water resistance, making it suitable for a wide range of challenging field conditions while ensuring robust communication capabilities. It supports rapid deployment through a piggyback method and features self-organizing network co-frequency relaying, with the ability to automatically adjust transmission power based on varying configurations.
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Flexible digital mode and analog mode switching
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PDT/DMR multiple working modes
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Supports up to 8 hops & 32 nodes
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Easy channel configuration
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Supports dual-band co-frequency relay
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Supports 5 types of encryption
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Supports GPS/Beidou satellite positioning
① LED Indicator
② Power Button
③ Network Indicator
④ ACC Accessory Interface
⑤ LAN Interface
⑥ Microphone Interface 1
⑦ Microphone Interface 2
⑧ Antenna Interface
① Battery Level Button
② Fuse
③ Butterfly Buckle
④ Battery Charging Interface
| Item |
Parameters |
| Working Band |
VHF:136-174MHz, UHF:400-480MHz,
UHF2:450-520MHz, UHF3:350-400MHz |
| Channel Quantity |
3773 |
| Area |
Level 1 area: 4, Level 2 area: 1000, Level 3 area: 1000 |
| Channel Step |
12.5KHz/25KHz |
| Working Voltage |
10.8~12.6V |
| Battery Capacity |
16.5Ah |
| Battery Life (5/5/90) |
21.4 Hours |
| Frequency Stability |
±0.5ppm |
| Antenna Impedance |
50Ohm |
| Transmission Range |
50-70km (w/ Tower) |
| Network Capacity |
Up to 8 hops and 32 nodes |
| Output Power |
137dBm (Manpack) / 237dBm (Vehicle-borne) |
| 4FSK Modulation |
12.5kHz data only: 7K60FXD
12.5kHz data and voice: 7K60FXE |
| FM Modulation |
12.5 kHz:8K50F3E, 25 kHz:16K0F3E |
| Modulation Limit |
±2.5kHz@12.5kHz, ±5.0kHz@25kHz |
| Emission Spurs |
-36dBm<1GHz/-30dBm>1GHz |
| Adjacent Channel Power |
≤-60dB |
| Sensitivity |
3%BER≤0.35µV |
| Intermodulation |
60 dB |
| Adjacent Channel Selectivity |
60 dB |
| Spurious Suppression |
70 dB |
| Block |
90 dB |
| Conducted Radiation |
-57dBm |
| GPS Positioning Accuracy |
Horizontal≤10m (Good signal conditions) |
| TTFF (First Fix) Cold Start |
<1 minute (Good signal conditions) |
| TTFF (First Fix) Hot Start |
<10 seconds (Good signal conditions) |
| Working Temp. |
-30ºC-+70ºC |
| Storage Temp. |
-40ºC-+85ºC |
| Moisture Proof |
MIL-STD-810C/D/E/F |
| Shock and Vibration Proof |
MIL-STD-810C/D/E/F |
| Dustproof & Waterproof |
IP67 |
| Dimensions |
302*218*76mm |
| Weight |
≤5KG (w/ Battery) |
Zhongke Lianxun (Shenzhen) Technology Co., Ltd is a high-tech R&D enterprise. Our products mainly use Mesh,COFDM and LTE as core technologies and auxiliary decision-making software to form underground building emergency communication systems, and police investigation communication systems, and police noncombat training communication systems, urban emergency communication systems, emergency communication vehicle communication systems, etc. The products are widely used in law enforcement agencies and government departments such as public security, armed police, , forest fire prevention, civil air defense, and maritime affairs.
Guided by the principles of "unity and commitment, technological advancement, and service innovation," we cater to users both at home and abroad. We prioritize the motto of "quality first, reputation foremost" in delivering high-quality, efficient, and tailored services to our global clientele. The company is dedicated to fostering an innovative culture centered on "exploration and progress."
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