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APPENDIX 1 – TESTING RF TELEMETRY LINK
Requirements:
•
1
×
(portable) computer (Windows 95/98/2000, NT or XP) with an available RS-232 serial port.
•
2
×
XStream-PKG-R RF Modems configured in RS-232 mode (see APPENDIX 2 – DIP
SWITCH SETTINGS RF MODEM).
•
1
×
standard 1:1 RS-232 cable with one 9-pin Sub-D male and one 9-pin Sub-D female
connector.
•
1
×
serial loop-back adapter
•
2
×
9V battery clip and 9V battery (or 2
×
power adapters).
•
2
×
Yagi/Vagi antennas and antenna kits (cables, adapters and surge protection)
•
XCTU configuration software
Installing the XCTU software:
•
Double-click the “setup-XCTU.exe” file located in the “Software” folder of the included CD.
•
Follow the prompts of the installation screens.
Hardware set-up:
1. Connect one RF modem (Radio1) to the PC serial port using the RS-232 cable.
2. Attach the serial loop-back adapter to the DB-9 serial connector of the second RF modem
(Radio2). The serial loop-back adapter configures Radio2 to function as a repeater by looping
serial data back into the radio for retransmission.
3. Check that both RF modems operate in RS-232 mode (see APPENDIX 2 – DIP SWITCH
SETTINGS RF MODEM).
4. Attach the directional Yagi/Vagi antennas (plus cables, adapters and lightning arrestors) to
Radio1 and Radio2. For mounting instructions of the antennas the reader is referred to
APPENDIX 3 – MOUNTING ANTENNAS.
5. Power Radio1 and Radio2 using the supplied power adapters or 9V battery clips.
Figure 30: Hardware set-up for RF communication test between Radio1 (located at weather station site)
and Radio2 (located at LAS-Receiver site).
Procedure for testing RF communication link between the selected sites of the weather station and the
LAS-Receiver:
1. Start the XCTU software program.
2. Select the PC Serial com port from the dropdown list that will be used to connect to Radio1
(see tab “Setup”). Generally COM1 is used. COM set-up should be as follows: Baud 19200;
Flow control: NONE; Data Bits: 8; Parity: NONE; Stop Bits: 1 (see Figure 31).
Summary of Contents for LAS
Page 1: ...Instruction Manual Large Aperture Scintillometer LAS...
Page 28: ...27 Figure 17 Operational weather station of LAS RET system...
Page 29: ...28...
Page 39: ...38...
Page 45: ...44...
Page 49: ...48...
Page 51: ...50 Figure 33 Configuration screen and default settings of supplied RF modems...
Page 55: ...54...
Page 69: ...68...
Page 71: ...70 APPENDIX 9 CONNECTION PLAN LAS BET LAS RET Figure 47 Connection plan LAS BET system...
Page 72: ...71...
Page 73: ...72 Figure 48 Connection plan weather station LAS RET system...
Page 74: ...73 Figure 49 Connection plan scintillometer LAS RET system...