MA-25 GPS Marine 天線
介紹
MA-25 GPS天線具有內建的抗RF訊號干擾裝置，以及主動式訊號放大器（LNA）和高增益信號，並能夠支援從3伏特〜6伏特之間的大範圍電力供應。MA-25 GPS天線為航海和嚴峻環境應用的首選。MA-25 是專為嚴苛的海洋環境所設計的產品。 請注意：此A-132天線備有防水、防曬外殼所組成，為螺帽式固定天線，通常可安裝於車輛頂部或船上。
特征
- 1. 10W RF protection
- 2. Standard WAAS tune
- 3. Short-circuit protection
- 4. Wide range power input voltage from +3v ~ 6v
- 5. Narrow band width at 10MHz for real GPS L1 signal
- 6. Cable length up to 40m
- 7. 2 stages active LNA
- 8. Dual Filters BPF(directric)& LPF(lump element)
- 9. Dielectric patch 天線
- 10. Low noise, linear regulator
- 11. High current shut down
- 11. Radio frequency interference immunity (RFI)
- 11. Improve overall GPS system resistance to interference
- 11. RoHS compiant
規格
| Technical Specifications |
| 2 Stages active LNA |
| Dual Filters, (BPF(dielectric) & LPF(lump element)) |
| RF protection (10watt), nano-second Spark-Gap |
| Dielectric Patch 天線 |
| Low Noise Low drop-out, Linear Regulator |
| Performance |
| Receiving Frequency |
L1 Band(1575MHz) |
| Output Impedance |
50 ohms |
| Polarization’s |
Right Hand Circular (RHC) |
| Bandwidth |
< 50 MHz |
| VSWR |
1.8 Typical @ 1575MHz |
| Elev. Angle Coverage |
5~90 degree |
| Az. Bearing Coverage |
360 degree |
| Filtering |
Dual(BPF <50 MHz B/W > |
| Over-all Gain |
28dB (typical including 4dB cable loss & Filters) |
| Over-all NF |
<1.8dB @fo, 2dB max. |
| LNA Characteristic |
K=>1 Un-conditionally Stable |
| RF Insertions loss |
0.1dB, leakage power 100mW /1 watt input |
| Electrical |
| Power Input |
+3Vdc to + 6Vdc input, Auto Switching |
| Power Consumption |
25mA |
| Power Input Sensor |
Reverse Polarity Short Circuit shutdown |
| Over-Current Sensor |
Thermal Over-current shutdown >+150degreeC |
| Physical |
| Dimensions |
79d x 58h x 13 mm (CHECK THIS!!) |
| Mount |
13 mm treaded (1/2inch) |
| Radome Color |
White |
| Coax Connector |
BNC,SMA,TNC or on request |
| Coax Cable |
RG-58, RG-174, RG-316 |
| Environmental |
| Operating Temperature |
-30 to + 85 degree C |
| Storage |
-40 to + 90 degree C
|
資料下載