8-Way GPS Splitter For Testing iGS18
GPS and GNSS Splitters
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The iGS18 GPs Splitter is a one-input, eight-output GPs device. This product typically finds application where an input from an active GPS rootantenna is split evenly between four receiving GPS units. In this scenario, the iGS18 can be configured to pass DC from an RF output to the antennainput port in order to power an active GPS antenna on that por. The others outouts would feature a 20 Ohm Dc load to simulate an antenna Dccurent draw tor any receiver connected o those ports. ndivdua igS18 work indenendenty as a senaraie product ics18 can contro the 8 outovrports power state, can detect the output port voltage.
>Programing Control the DC Pass or Block All Ports.
>Monitoring The Voltage of All The Ports.
>Connecting the PC Via The RS232 Port:
>Design For R&D and Manufacture Test.
>Full GNSs Band:GPS/GLONASS/Beidou/Galileo/IRNSS/QZSS/SBAS/NAVIC
>Gain(amplified):0dB ~ 10dB(Be specified)
>DC Power Adaptor(Standard):
>Low Noise Fiqure: <2.5dB
>Avaible In TNC.SMA. BNC and N Connectors
Electrical Specifications, Operating Temperature -40 to 85C
Parameter Conditions Min Type Max Units Freq. Range Ant - Any Port, Unused Ports -50Q(1) 1164 1616 MHz In &Out Imped. In, all output ports 50
0dB In- Output ports. ,Unused Ports - 500 -1 0 1 dB Amplified(10dB) 9 10 11 Input SWR All Ports 50Ω(1) 1.5:1 2.0:1 - Output SWR Ant-Any Port, Unused Ports-50Ω(1)Gain=20dB 2.0 dB Nois Figure- Amplified J1-J2l.Ant-Any Port, Unused Ports-50Ω(1) 0.5 dB Gain Flatness (Amplified) Phase(J1-J2)Ant-Any Port,Unused Port-50Ω(1) - 1.0 deg Amp. Balance Ant-Any Port, Unused Ports-50Ω1).L1S L1 3/5 ns Phase Balance Phase(J1-J2), Ant- Any Port, Unused Ports-50Ω - 1.0 deg Group Delay Flatness 1 ns Isolation Amplified Adjacent Ports: In -50Ω 13 dB Opposite Ports: In - 50Ω 21 Gain:10dB Adjacent Ports: In - 50Ω 35 Opposite Ports: In - 50Ω 4 AC IN Wall Mount transformer VAC DC IN DC Block Al1 ports with a 2000 Load VDC PASS DC.Amplified 3 9 PASS DC, Passive 9 Powered, to be specified 9 Device Current 16 mA Current Pass DCNo Powered configuration DCinput on J1 250 kA Powered, to be specified Max RF Input (Amplifed) Max RF input without damage 0 dBm
1.Connect serlal port
Note: RXD product iGS18 serial port connector TXD; product TXD connected to the serial port connector RXD
2.Serial port parameters
Open serial debug assistant software.
Antenna DC Bias Select:
Set items Default Parameter Band Rate 9600 Check bit nothing Data bits 88 Stop bit 1 Pin definition
Serial number view: Right-click on "My Computer", select "Manage" Double-click "Device Manager" and double-click can see the connection port serial number is COM4.
NOTE: You must insert the serial connector can see the serial number.
3.Calculation of power off and read voltage instructions
STX: 0x02 frame start flag;
DLE: 0x10 transcoding, for use in the frame start or frame end flag before, if DLE equal to the value data appears in the frame, the data retransmission protocol requires one to represent distinction, that is represented by two consecutive
DLE data, a DLE represents the transcoding;
CMD: Communication instruction data type, including data communication instruction (0xF1) and
control commands (0xF2) of two types;
Parameter: CMD communication instruction data content, data length;
ETX: 0x03 frame terminator flag (not included in the back of the validation data);
BCCL: binary BCC check code low 8;
BCCH: binary BCC code high 8.
Then DLE, STX and ETX three hexadecimal constant, which is the first 1,2,5,6 These four numbers are the same, you need to calculate the CMD, parameters, BCCH and BCCL four hexadecimal number.
Schematic diagram of serial connection