GPS with VHF or UHF Antenna
MODEL: GVA-136
Marine AIS SYSTEMS Antenna
The application shall apply for antenna unit which shall be used for Marine AIS systems & Radio Car AVL and Fleet Management systems. The combination of High Gain GPS antenna and a low profile covert VHF antenna is highly ideal for these applications that require durability, small in size, covert installation and rugged construction.
SPECIFICATIONS:
| Physical Condition |
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| Dimension |
71.5mm (L) x 49.5mm (W) x 27mm (H) |
| Weight |
50 grams (excluding cable & connector) |
| Environmental Conditions |
| Operation temperature |
-40°C to +85°C |
| Storage temperature |
-40°C to +100°C |
| Relative Humidity |
95% non-condensing |
| Cable & Connector |
| Cable |
5 meter RG174/U (standard) cable, other length available |
| Connector Available |
BNC,TNC,FME (to be adapted), GT5, MCX (OSX), SMA, SMB or SMC in straight or right angle |
| Optional Adapters |
Universal Connector Adapter (FME to TNC/BNC/SMA/SMB/MCX) |
| Antenna Element |
| Center Frequency |
1575.42 MHz +/-1.023MHz |
| Polarization |
R.H.C.P. (Right Handed Circular Polarization) |
| Absolute Gain @ Zenith |
3 dBic Typ. |
| Gain |
90° : 2.0dBi min.
20° : -5.0dBi min.
Mounted on the 60mm x 60mm square ground plane |
| Axial Ratio |
90° : 3 .0dB max.
Mounted on the 60mm x 60mm square ground plane |
| Low Noise Amplifier |
| Center Frequency |
1575.42 MHz +/- 1.023 MHz |
| Gain |
28+/-4.5dB |
| Bandwidth |
10 MHz min. @S11£-10 dB |
| Noise Figure |
1.5dB Typ. |
| Filter |
25dB @ fo± 50MHz
35dB @ fo± 100MHz
* fo=1575.42MHz |
| Supply Voltages |
2.5 ~5.5V DC |
| Current Consumption |
2.5V : 6.6mA Typ.
3V: 8.6mA Typ.
4V: 12.6mA Typ.
5V: 16.6mA Typ. |
| Output Impedance |
50 ohm |
| Output VSWR |
2.0 max. |
| Overall Performance (Antenna Element, LNA & Cable) |
| Frequency range |
1575.42 +/- 1.023 MHz |
| Gain |
At 90o 30 ± 4.5dBi-(cable loss) Note:1
Mounted on the 60mm x 60mm square ground plane |
| Output Impedance |
50 ohm |
| VSWR |
2.0 max. |
| Frequency |
136 ~ 174Mhz or UHF :445 ~470Mhz |
| Gain |
Unit ( UHF: 4db) |
| VSWR |
1.5:1 |
| Power rating |
200W |
| Band-width |
10Mhz |
| Type |
1/4 wave (UHF: 5/8 over 1/2 wave ) |
| Whip length |
52cm ( UHF:73CM ) |
| Impedence |
50Ω |
| Cable type |
RG58/U |
| Cable length |
5M |
| Connector |
Mini UHF or TNC / N |
| Broach |
3/4" hole mount |
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