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sat-nms LBRX-1MT

L-Band Beacon Receiver

User Manual

Version 2.0 / 2011-11-10

www.satnms.com
www.satservicegmbh.de
Tel +49 7738 99791-10
Fax +49 7738 99791-99

Summary of Contents for SatService sat-nms LBRX-1MT

Page 1: ...acon Receiver User Manual Version 2 0 2011 11 10 Copyright SatService Gesellschaft f r Kommunikatiosnsysteme mbH Hardstrasse 9 D 78256 Steisslingen www satnms com www satservicegmbh de Tel 49 7738 997...

Page 2: ...5 Mechanical installation 9 3 Operation Remote Control 9 3 1 Command syntax 10 3 2 Framed Protocol 11 3 3 RS422 streaming interface 12 3 4 Parameter list 13 3 5 Detailed parameter descriptions 17 4 Th...

Page 3: ...C 2020 SatService GmbH www satnms com LBRX 1MT UM 2002 Page 2 21...

Page 4: ...l measurement rate of the receiver with a minimal protocol overhead This document is the user manual provided with the sat nms LBRX 1MT beacon receiver It contains all necessary information how to ins...

Page 5: ...C 2020 SatService GmbH www satnms com LBRX 1MT UM 2002 Page 4 21...

Page 6: ...ect and apply the appropriate 24V D C voltage according to the data sheet and documentation before connecting power Before you connect the L Band Beacon Receiver to an L Band distributor or LNC please...

Page 7: ...eiver by means of remote control interface before you connect the receiver input D C and data connectors The D C and data connectors of the receiver all are located at one of the side panels of the en...

Page 8: ...lof2 Low band LO frequency Query lof1 Band edge Query edge If your antenna provides only one single conversion frequency set this value for both LO frequency parameters and set the band edge to zero T...

Page 9: ...s and lock the receiver on this When planning the mechanical installation of the receiver please consider that the connectors are placed at the front sides of the enclosure Depending on the flexibilit...

Page 10: ...ts one stop bit To connect the receiver to a computer s 9 pin RS232 port you need an off the shelf straight through male to female D SUB9 cable For installations a 3 wire cable pins 2 3 and 5 is suffi...

Page 11: ...beacon receiver will overwrite this parameter immediately or some seconds later with the actual value 3 2 Framed Protocol For computer based remote control from a monitoring control application the LB...

Page 12: ...level dBm in steps if 0 01 dB level 14 bit integer beacon level dBm 100 The 14 bit value coded this way is capable to represent levels in the range 163 83 0 00 dBm At the interface it gets coded into...

Page 13: ...the polarity of the signals at pins 1 and 9 of the M C connector To ensure a reliable communication through the RS422 interface the receive side should terminate the line with 120 Ohms 3 4 Parameter...

Page 14: ...rxpl H V Polarisation scmp 10 0 10 0 dB Spectrum compensation sflt r o OK FAULT Synth fault srno r o character string Device serial number sver r o character string Software version temp r o 40 120 C...

Page 15: ...ble input attenuator which lets you adjust the input level in 10 dB steps This is specially useful with large Antennas pointing to a satellite which generates a high flux density With the attenuator y...

Page 16: ...atically enables the 22 kHz tone depending on the receive frequency set The tone is switched OFF for frequencies below the band edge switched ON for frequencies above the band edge The band edge is se...

Page 17: ...sver Software version Querying this parameter returns the software version installed C 2020 SatService GmbH www satnms com LBRX 1MT UM 2002 Page 16 21...

Page 18: ...e receive frequency range is from 950MHz to 2050MHz A small portion of the input signal is coupled out of the main signal flow the coupling is compensated by a small amplifier and this signal is provi...

Page 19: ...estion of software in the micro controller on the beacon receiver M C board At the moment only a 22KHz signal is generated if necessary In cases where no LNB supply is needed the D C converter can be...

Page 20: ...y by temperature There is an absolute offset which changes with the temperature but also the dB to voltage relation slightly may change The beacon receiver software compensates this effect by varying...

Page 21: ...lure 1dB in any 10 dB Switchable input attenuator to adapt the dynamic range and input signal level 0 10 20 30 dB Video bandwidth selectable by micro controller 0 1 Hz 0 5 Hz 1 Hz 5 Hz 10Hz 50 Hz 100...

Page 22: ...Weight 1 5 kg C 2020 SatService GmbH www satnms com LBRX 1MT UM 2002 Page 21 21...