MA-GNDM-685
GNSS L1/L2/L5 Conical Dome
The Midland Antennas MA-GNDM-685 is a conical dome-style, panel-mount antenna designed for comprehensive GNSS coverage, supporting global satellite navigation systems including GPS, GLONASS, Galileo, and BeiDou (BDS) across multiple frequency bands.
Optimized for high-precision applications, this antenna provides sub-centimeter-level positioning accuracy and features a stable, repeatable phase center, ensuring consistent results in demanding environments. The LNA offers powerful out-of-band suppression, reducing interference and improving signal lock retention.
Encased in a rugged, IP67-rated housing, the MA-GNDM-685 delivers reliable performance with high gain for stable signal reception in obstructed areas. The antenna connects via a TNC-K connector, providing secure and durable attachment.
Covering:
GPS L1/L2/L5
GLONASS G1/G2/G3
Baidou (COMPASS) B1/B2/B3
Galileo E1/L1/E2/E5a/E5b/E6
The antenna connects via a TNC-K connector.
Electrical Data
Mechanical Data
| Antenna | Frequency Range | 1559-1610MHz / 1176.45MHz / 1205-1278.75MHz |
| Polarization | RHCP | |
| Axial Ratio | ≤3dB | |
| V.S.W.R | ≤2.0 | |
| Peak Gain | ≥3dBi | |
| Impedance | 50Ω | |
| Horizontal Coverage Angle | 360° | |
| Vertical Coverage Angle | 5°~90° | |
| LNA | Gain | B1/L1/G1/E1/E2：28±2dB |
| B2/L2/G2/B3/E5b/E6：30±2dB | ||
| Noise Figure | ≤1.5dB | |
| Passband Fluctuation | ±1.5dB | |
| Supply Voltage | 3.3~12V DC | |
| Current Consumption | ≤50mA | |
| V.S.W.R | ≤2.0 |