MA-680D

MA-680D

Inquiry

Download

  • Product Description
  • Product Specification

Tapered size and ruggedness design, demand of vehicle locating and marine navigation GNSS antenna that will sustain harsh environment. The internal use of QUADRIFILAR Helix Antenna allows for a wider signal reception angle.


  • Low noise figure
  • Fully weather proof IPX7.
  • Ultra-high Sensitivity
  • Compact construction
  • Excellent temperature stability
  • Support GPS/GLONASS/BEIDOU/GALILEO and QZSS system

The antenna system MA-680D is the integration of the high performance GNSS QUADRIFILAR Helix antenna and a low noise amplifier into state-of-the-art low a very low profile/extremely compact/fully waterproof antenna signal enclosure. When connected to a GPS receiver with +3~16V DC antenna power it provide excellent signal amplification and out-band-rejection for that receiver.


Features:

GNSS antenna with double threaded bolts and through holes for cable routing with course & fine treaded pitch locking for wing-nut fastener and lock-nut to prevent vibrations and un-authorize removal.


Applications:

Geospatial Surveys / Single & Multiple frequencies RTK positioning / Vehicle Tracking / Security Surveillance / Precise Guidance / Machine Control / AVL

PHYSICAL CONDITION
Constructions: ASA-UV radome, detachable cable/connector for easy mount, rubber-Oring between top radome and screw base for waterproof.
Dimensions: 60mm(Dia.) x 140mm(H)
Weight: 200grams (w/o cable & connector).
Color: Standard in ivory white
Mounting: Bulkhead mount with 0.8 inch threaded wing nut (standard accessory).
Mounting Adapters: Pole mount to 1"-14 UNS threaded mast
Base mounting: FB1 1"-14 UNS

Cable & Connector
RF cable: SMA(M) +10 meter CFD200 +TNC(M)
Pulling strength: 6 Kg @ 5sec. molded plastic on connector end for strain relief.
Antenna Connector SMA(F) or TNC(F)

Antenna Element
SUPPORT Band: GPS:L1/L2/L5 : GLONASS : L1/L2/L3 :BDS :B1/B2/B3
GALILEO:E1/E5/E6 & L-Band
Polarization: R.H.C.P. (Right Handed Circular Polarization).
peak Gain: ≧2.5 dBi typical.
Gain @ 10o Elevation: -1 dBi typical.
Axial Ratio@zenith: ≦2.0 dB
Azimuth coverage 360˚
Output Impedance: 50 ohm

Low Noise Amplifier
Center Frequency: 1164MHz~1283MHz & 1525MHz~1615MHz
Power Gain: 35db +/-3db
Group delay variation ≦2.0 db
Noise Figure: 1.5 tpy
Output VSWR ≦2.0:1
Supply Voltages: 3~16V DC.
Current Consumption: ≦30mA (5V)
Output Impedance: 50 ohm

Overall Performance: (antenna element, LNA & coax cable)
Center Frequency: 1164MHz~1283MHz & 1525MHz~1615MHz
Gain: 35db +/-3db
Noise Figure: 2.0 max.
Axial Ratio: 2 dB
Azimuth coverage 360˚
VSWR: 2.0 max.
Output Impedance: 50ohm

Environmental
Operating Temperature: -40oC~ +85oC.
Storage Temperature: -40oC~ +85oC.
Relative Humidity: 95% non-condensing.
Water Resistance: 100% waterproof.

*This specification is subject to change without prior notice



FB1 Base mounting


1. Antenna working frequency band

Passive antenna microwave anechoic chamber relative waveform diagram


Active antenna microwave anechoic chamber relative waveform diagram


2. Antenna pattern and axial ratio Typical direction diagram of L2 vertical plane

Freq(MHz) Polarization Peak gain(dBi) HPBW(3dB)(deg)
1176 RHCP -2.3 110
1192 RHCP -0.3 115
1207 RHCP 1.5 117
1227 RHCP 2.8 117
1246 RHCP 1.6 119
1268 RHCP 0 120

Passive antenna vertical plane pattern@L2


Typical direction diagram of L1 vertical plane (phi=0):

Freq(MHz) Polarization Peak gain(dBi) HPBW(3dB)(deg)
1561 RHCP 2.3 96
1575 RHCP 2.7 100
1602 RHCP 2.0 101

Passive antenna L1 frequency band vertical plane pattern@L1


Typical direction diagram in the horizontal plane:

Freq(MHz) Circularity(dB)
1176 1.2
1192 1.1
1207 0.9
1227 0.9
1246 1.0
1268 0.8

Passive gain out-of-roundness@L2


Freq(MHz) Circularity(dB)
1561 0.9
1575 1.0
1602 1.2

Passive gain out-of-roundness@L1


Antenna axis ratio:

Freq(MHz) @Zentth(dB)
1176 1.3
1192 1.0
1207 0.8
1227 0.7
1246 0.7
1268 1268

Axle ratio@L2


Freq(MHz) @Zentth(dB)
1561 1.1
1575 1.2
1602 1.2

Axle ratio@L1


3. LNA gain and standing wave ratio

LNA gain and standing wave ratio


4. Working current

Working current is about 30mA


5. Test