Introduction
A GPS device is only as good as the antenna it uses. A bad quality antenna might compromise the whole GPS tracking or navigation system, and compared to the effort and cost you might spend uninstalling and repairing the system - buying a good quality GPS antenna is really a no-brainer!MAR-4 is a low profile combine antenna for telemetry, fleet management, GPS tracking and M2M applications. Its GPS antenna has unique 10 watt RF protection, 3 signal noise filters and 2-stage LNA (Low Noise Amplifier) design, which provides the most accurate signal to GPS devices. MAR-4 offers ultimate performance for marine and fleet applications. It is designed for maximum ruggedness in marine environments.
So, save your company reputation and choose the right antenna. We’ve been in the business for many years, and the low failure rate of our antennas has been proven by our regular customers all over the world. All our antennas are made and tested in our own factory in Taiwan to very strict quality control standards. You are welcome to send your inquiries to us, and we are more than happy to offer a free testing sample to prove our antenna’s performance and quality.
Features
- 1. Water resistant & sunlight proof
- 2. Screw mount
- 3. 10 watt RF protection design
- 4. Wide power supply range and short-circuit protection
- 5. 3 signal noise filters and 2-stage LNA
- 6. Silver-coated conducting pin
- 7. Double-shielding cable
- 8. RoHS compliant
Specification
| Architecture | |
| RF protection (10 watt) | |
| 2 Stages active LNA (Low Noise Ampfiler) | |
| Dual Filters, (HPF & LPF (Lump element)) | |
| Dielectric Patch antenna | |
| Low Noise Low drop-out, Linear Regulator | |
| GPS receiver short circuit protect | |
| Low Loss RG/174 Coax cable | |
| Aluminum Base/ PC+ Radome Plastic | |
| Mechanical & Environmental | |
| Dimensions | 79 x 58 x 13 mm (CHECK THIS !!) |
| Mount | 13mm treaded (1/2inch) |
| Color | White |
| Operating Temperature | -40 to +85° C |
| Humidity | 40% to 95% RH |
| Storage Environment |
-40 to +85° C 40% to 95% RH |
| Output Terminal | |
| Coax Cable | RG-174U double shielded 5m, Low Loss 0.7dB/m |
| Coax Connector | BNC SMB Fakra SMA MCX MMCX GT5 or on request |
| GPS ANTENNA | |
| Center Frequency | 1575.42±1.023 MHz |
| Bandwidth | 10 MHz @ -3dB point |
| Polarization | R.H.C.P |
| Axial Ratio | 2.0 dB max |
| Over-Current | Thermal Over-current shutdown >+150° C |
| RF noise protection | RF protection(10watt), nano-second Spark-Gap |
| LNA | |
| Center Frequency | 1575.42±1.023 MHz |
| Over-all Gain | 28dB (typical including 4dB cable loss & Filters) |
| Over-all NF | <1.8dB @fo, 2dB max. |
| Output V.S.W.R | 1.5 dB max |
| LNA Characteristic | K=>1 Un-conditionally Stable |
| Voltage | +3 Vdc to + 6 Vdc input, Auto Switching |
| Current | 11~13mA±2 |
| GSM ANTENNA | |
| Frequency | GSM: 900~1800 MHZ |
| VSWR | 1.5MAX |
| IMPEDENCE | 50Ω |
| Polarization | R.H.C.P |
| Gain | 3dBi |
| Power handling capacity | 40 W |
Documentation
| File Name | File Size | Time |
| MAR-4 GPS and GSM Dual Marine Antenna ARKNAV-Datasheet | 455 KB | Feb 8th 2009 |