GPS
Antenna with
Low Noise Amplifier
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Model SM-76
*Low
Voltage Input* , * High Gain*
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SM-76 is the integration of the high
performance GPS patch antenna and a state-of-the-art low noise
amplifier into a very low profile/extremely compact/fully waterproof
enclosure, when connected to a GPS receiver with +2.5 to +12Vdc
antenna power it can provide excellent signal amplification and out of
band filtering & rejection for that receiver.
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| General
Descriptions: The
text specify the basic operation characteristics of the Active GPS
antenna Model SM-76 under standard test condition of +3 & +5Vdc
and 25*C /50%R.H. respectively. |
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Physical
Constructions:
 | Constructions: Polycarbonate
radome enclosure,die-cast-shell at the bottom, water
proof rubber gasket seal. |
| Dimensions: 58mm(L)x 48mm(W)x
15mm(H). |
| Weight: 65grams (w/o cable &
connector) |
| Standard Mounting: 2 magnet mount
and/or screw mount with 2 M3 tapped holes on
die-cast base. |
| Mounting plate: Metal
flanges with holes for permanent mount. |
Cable & Connector:
| RF cable: 5 meter RG174/U
(standard) cable & length (optional) |
| Pulling strength: 6 Kg @ 5sec.
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| Connector available: MCX right
angle, BNC straight or FME |
| Optional: Universal
Connector Adaptor: (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: +5 dBi
typical. |
| Gain @ 10
Elevation: -1 dBi typical. |
| Axial Ratio: 3 dB max.
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| Output VSWR: 1.5 max. |
| Output Impedance: 50 W |
Low Noise Amplifier:
| Center Frequency: 1575.42 Mhz +/-
1.023 MHz. |
| Power Gain: 27 dB typical.
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| Bandwidth: 2 MHz min. |
| Noise Figure:1.5 max. |
| Supply Voltages: +2.5 ~5.5V DC.
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| Current Consumption: 7mA +/-0.3mA
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| VSWR: 2.0 max |
| Output Impedance: 50 W |
Overall Performance: (antenna
element, LNA & cable)
| Center Frequency: 1575.42 MHz.
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| Gain: 28 dB min. |
| Noise Figure: 2.0 max.
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| Axial Ratio: 3 dB max.
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| VSWR: 2.0 max. |
| Output Impedance: 50 W |
Environmental:
| Operating Temperature: -40
C~ +85
C. |
| Storage Temperature: -45
C~ +90
C. |
| Relative Humidity: 95%
non-condensing. |
| Water Resistance: 100%
waterproof. |
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