30-3000MHz Portable 5-element Array Direction Finding Antenna

ZDTECH 30-3000MHz 5-element array direction finding antenna is designed for ultra-short wave communication signal reception. Lightweight, portable and foldable, it adopts broadband active antenna technology with 5-element circular array in dual bands. It features wind/rain/lightning resistance, strong environmental adaptability, stable direction finding performance and fast channel switching, ideal for field portable use.

Product Detail

This ZDTECH portable 5-element array direction finding antenna is specially designed for receiving ultra-short wave communication signals in the 30-3000MHz frequency range, with a dual-band design of 30-600MHz and 600-3000MHz. A 5-element circular array layout is adopted for the entire frequency band, and all antenna units are vertically polarized dipoles. It is equipped with broadband active antenna technology and optimized broadband matching, which greatly reduces the size and the mutual coupling effect between array elements, with stable phase distribution and no singularities. The product adopts a miniaturized, modular and foldable structure, with folded dimensions ≤690mm×Φ320mm and weight ≤5.2kg (excluding Beidou differential antenna). It supports tripod fixation, featuring convenient installation and deployment and excellent portability.

In terms of performance, the antenna gain is ≥0dBi, the VSWR is ≤2.5:1, the array elements have good amplitude and phase consistency and high receiving sensitivity. The switching time between two frequency bands is ≤1ms and the channel switching time in the same frequency band is ≤1μs. The burnout resistance power of the active section reaches 1W continuous wave, with a power supply of 9-36VDC and power consumption ≤24W. It has extremely strong environmental adaptability, operable at -40℃~+55℃ and storable at -50℃~+65℃, suitable for altitudes above 5000 meters. It can work normally in Level 6 winds and without damage in Level 8 winds, be immersed in 1-meter water depth for 30 minutes, and resist salt spray, sand and dust, vibration and impact with a mold inhibition rating of Grade 2. With wind, rain and lightning protection, it is perfectly suitable for field portable operation scenarios.

Frequency Range		30MHz-3000MHz (divided into two bands: 30-600MHz and 600-3000MHz)
Antenna Gain		≥0dBi (typical value)
Antenna Non-circularity		≤3dB (typical value, design guaranteed)
VSWR		≤2.5:1
Polarization		Vertical
Characteristic Impedance		50Ω (nominal)
Antenna Array Configuration		30-600MHz: Five-element circular array 600-3000MHz: Five-element circular array Two-layer coaxial installation, with low-band antenna arms foldable
Antenna Array Aperture		30-600MHz: 1200mm 600-3000MHz: 252mm
Low-band Element Length		680mm
Active Antenna Section		Output second-order intercept point: ≥45dBm (design guaranteed) Output third-order intercept point: ≥30dBm (design guaranteed)
Consistency Between Array Elements		30-600MHz: Amplitude inconsistency ≤2dB(RMS),Phase inconsistency 3° (RMS) 600-3000MHz: Amplitude inconsistency ≤2dB (RMS),Phase inconsistency 5° (RMS)
Element Antenna Receiving Sensitivity		30-600MHz: ≤10 μV/m (typical value, S+N/N=3dB, BW=15kHz); 600-3000MHz: ≤15 μV/m (typical value, S+N/N=3dB, BW=15kHz)
Burnout Resistance Power		1W continuous wave (design guaranteed)
Switching Time Between Two Frequency Bands		≤1ms (design guaranteed)
Switching Time Between Different Channels In The Same Frequency Band		≤1μs (design guaranteed)
Power Supply Input		9-36VDC (occupies 4 pins in the control interface)
Power Consumption		≤24W
Color		Painted GY05 brown-green (orange peel texture). The mounting adapter and support feet on the antenna base are black

Environmental Adaptability

Temperature		Operating temperature: -40℃ ~ +55℃ Storage temperature: -50℃ ~ +65℃
Damp Heat		Alternating damp heat test per GJB150.9A-2009: 95%±5% (alternating damp heat at +30℃ and +60℃; relative humidity may drop to 85% during temperature decrease). One 24-hour cycle, total 10 cycles
Sand And Dust		Meets GJB150.12A-2009 test method
Shock		Meets GJB150.18A-2009 test method. In backpack carrying state, tested according to Procedure IV of GJB150.18A-2009. Dropped once each from 1 meter height onto the bottom, left side, right side, and outer side using free fall. Equipment performance and structure shall remain intact
Vibration		In transportation state, meets GJB150.16A-2009. Frequency: 10Hz~500Hz. Vertical axis: 1.04grms, Longitudinal axis: 0.74grms, Lateral axis: 0.204grms. Three axes, 1 hour per axis. Equipment not operating
Plateau Adaptability		Suitable for altitudes of at least 5000m
Immersion		1 meter water depth for 30 minutes
Mold		Capable of inhibiting mold growth. Mold growth rating: Grade 2
Salt Spray		Meets the requirements of GJB150.11A-2009. The antenna shall use corrosion-resistant materials and treatments. It can operate normally for long periods under salt spray sedimentation rate of (1~3) mL/(80cm²·h)
Wind Resistance		The equipment can operate normally in Level 6 winds and will not be damaged in Level 8 winds