Ⅰ. Product Overview
The LKFS-J140 is a portable shield-form airspace security device for handheld patrol and tripod-mounted deployment in low-altitude airspace security scenarios. It integrates six RF mitigation channels covering 800MHz, 900MHz, 1.5GHz (GNSS navigation), 2.4GHz (WiFi / video link), 5.8GHz (video / flight-control link) and 5.1GHz-5.9GHz (wideband adaptive video link). Against low-altitude UAV links its effective operating distance is 0-2.5km in open, unobstructed conditions, verified up to 2.5km with a test unit.
Weighing 6.5kg or less, the LKFS-J140 carries a sunlight-readable color touchscreen on the rear of the shield-form housing for channel switching and battery monitoring, and completes a cold start in 15 seconds or less. An internal high-density rechargeable lithium battery pack provides 12 hours of standby and 30 minutes or more of continuous full-power emission, with pass-through charging during operation. All six channels can be switched independently or run as pre-set combined modes — one-tap link interruption (forced landing) and one-tap return-to-home trigger. Deployment is handheld for mobile patrol or tripod-mounted for stationary coverage, serving airport and civil aviation operational safety, large venues and events, energy / power and petrochemical parks, industrial parks and logistics hubs, urban low-altitude airspace and controlled-perimeter management.
Ⅱ. Product Specifications
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Parameter
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Value
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Housing Form
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Shield-form housing；integrated color touchscreen control
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Working Bands
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6 channels:CH1 800MHz；CH2 900MHz；CH3 1.5GHz(GNSS satellite navigation )；CH4 2.4GHz(WiFi / video link)；CH5 5.8GHz(video / flight-control link )；CH6 5.1GHz–5.9GHz(wideband adaptive video link )
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Effective Operating Distance
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0–2.5km(open, unobstructed environment ；tested with DJI Mavic 2 test unit DJI Mavic 2 )
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Response Time
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≤5s(one-tap touchscreen trigger
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Antenna Beam Angle
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Horizontal :75°/ 30°；Vertical :65°/ 20°
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RF Modulation
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Swept-frequency RF mitigation；frquency and power adjustable
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Channel Control
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Independent on/off per channel ；or pre-set combined modes (one-tap link interruption / one-tap return-to-home trigger)
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Power Supply
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Built-in high-energy polymer lithium battery ；AC 220V direct charging
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Standby Time
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12h
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Continuous Full-Power Emission
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≥30min；pass-through charging supported
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Cold Start Time
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≤15s
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Power Consumption
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≤400W
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Positioning & Reporting (Optional)
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Not included by default ；optional BDS satellite positioning and 4G/5G mobile data reporting module
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Dimensions
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260mm × 260mm × 150mm
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Net Weight
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≤6.5kg
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Operating Temperature
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-20℃ to+60℃
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Storage Temperature
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-25℃ to +65℃
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Ingress Protection
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IP43(dust and splash resistant )
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Deployment Mode
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Handheld patrol ；quick-mount tripod stationary deployment
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Battery Transport
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UN38.3 certified / MSDS available
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Standard Kit
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Main unit ；quick-mount tripod ；industrial charger ；nylon carry strap protective trolley case
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Ⅲ. Product selling points
1.Six channels, one device — 800MHz, 900MHz, 1.5GHz (GNSS), 2.4GHz, 5.8GHz and 5.1GHz-5.9GHz wideband adaptive video link.
2.Independent or combined control — switch each channel separately, or trigger pre-set modes: one-tap link interruption (forced landing) and one-tap return-to-home trigger.
3.Reaches 0-2.5km — effective operating distance against low-altitude UAV links in open, unobstructed conditions, verified up to 2.5km with a DJI Mavic 2 test unit.
4.Shield-form housing — a neutral form factor with the touchscreen on the rear of the housing; no firearm-style silhouette.
5.Shift-long battery — 12h standby and 30min or more of continuous full-power emission, with pass-through charging during operation; cold start in 15s or less.
6.Two deployment modes — 6.5kg or less for handheld patrol, or quick-mount tripod for stationary perimeter coverage.
Ⅳ. Product Display
Ⅴ. Company Introduction
Chongqing Leikan Technology Co., Ltd. is a specialized manufacturer and solutions provider in low-altitude perimeter security and industrial RF sensing equipment. We focus on the research, development, and supply of high-precision civilian radar systems, passive radio frequency (RF) spectrum monitoring sensors, and integrated airspace surveillance software. Our product portfolio spans handheld spectrum alert devices, fixed outdoor monitoring stations, and multi-sensor surveillance integration. All equipment undergoes stringent environmental and precision testing, delivering high sensitivity and robust anti-interference performance across commercial infrastructure, civil airports, industrial parks, and perimeter protection projects worldwide. We offer complete technical support, OEM/ODM customization, installation documentation, and a standard 12-month warranty for international clients.
Ⅵ. logistics transportation
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