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SG RA-46 Re-radiating Antenna

 
 
SG RA-46 Re-radiating Antenna
SG RA-46 with a centre bolt-mount SGRV16 external antenna


SGRA-46 is a complete external GPS antenna & an indoor re-radiating passive antenna for GPS L1 band at 1575.42MHz Direct Sequence Spread Spectrum (DSSS) GPS signal. SGRA-46 re-radiating units re-transmit real-time GPS satellites reception to an in-door environment by using a special designed Patch element & Helix type antenna combination to maximize out-of-band rejection to the GPS receiver front-end.. The Helix type internal antenna system allows multiple GPS receiver users to perform On-The-Fly normal receiver performance within a closed environment, while the main GPS antenna is located in an external location.

Easy to set-up

no additional cables are needed to be installed. It is no longer necessary to connect an external GPS antenna to the GPS receiver inside the vehicle.

Signal booster - full receiver visibility of GPS satellites with an amplified re-radiated internal signal.

Power management

GPS Power saver - the system uses an independent power supply source.

Efficient & convenien: the re-radiator transmits real time data throughout the vehicle directly to an unlimited number of users. Multiple GPS receivers or hand-helds can share one re-radiator to receive data.

Good signal reception , re-radiating distance is approximately 2 meters or more from the re-radiating antenna

SYSTEM DESCRIPTION

The product is designed to operate standalone, it includes a high gain external GPS Antenna, precisely calibrated amplifier circuit with Helix type indoor re-radiating antenna and a power supply regulator built-in to supply systems power requirements. The unit is designed as Plug-n-play hardware and it can be installed permanently or temporarily to a secured location by using either screw mount or glass suction cup for the indoor Helix antenna.

PRECAUTIONS:

THE INDOOR ANTENNA MUST BE TOTALLY ISOLATED AND MUST NOT HAVE LINE OF SIGHT TO THE EXTERNAL GPS ANTENNA, TO AVOID FEEDBACK OR RELECTED RF SIGNAL.

Specifications

SPECIFICATIONS: External Antenna Electrical Specifications, TA=25 oC

Description

Parameter

Min

Typ

Max

Units

Frequency

L1 band

--

1.575

--

GHz

Bandwidth

--

--

50

--

MHz

Amp Gain

--

--

28

--

dB

Noise Figure

--

--

1.3

--

dB

Output SWR

--

--

2.0:1

--

ratio

DC Input

--

4.5

--

5.5

Vdc

Re-Radiating Antenna System Electrical Specification, TA=25 oC

Description Frequency

L1 band

--

1.575

--

GHz

Bandwidth

--

--

20

--

MHz

Impedance

--

--

50

--

ohm

Gain

--

--

20

--

dB

Noise Figure

--

--

2.0

--

dB

Output SWR

--

--

1.6:1

--

ratio

Element

Helix type

--

--

--

--

Polarization

RHCP

--

--

--

--

RF Out

at 1dB gain compression

--

-2.0

--

dBm

DC Input

--

+6

--

+30

Vdc

Power Consumption

--

--

55

--

mA

Cable Length: 5 meters (Standard; other lengths can be made to order.)

(This specification is subject to change without prior notice.)

 
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