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Home » Products » Educational Trainers » Antenna,Satellite,Radar,RF » Satellite Communication Lab

Antenna, Satellite, Radar Trainer » Satellite Communication Lab

Satellite Communication Lab

satellite-communication-lab

Satellite Communication Lab Features:

  • Microwave 2.4 GHz operation Satellite Trainer
  • 500MHz spectrum analyser provided
  • Tele-command and telemetry facility
  • Different Baud rates PC-PC link.
  • Emulation of variable signal fading, variable thermal noise
  • Variable propagation delay.
  • Total 4 Variable path loss at uplink and downlink channels
  • High RF output power and low noise
  • LCD display of PLL synthesized frequency in Transmitter,
  • Receiver and Satellite Emulator
  • Condenser microphone and speaker for audio link
  • Camera and Video to VGA converter for video link
  • Satellite has built-in antennas, transponder for link
  • Helix (LHCP X 2 & RHCP X 2), Log Periodic X 2, Dish X 2 & Patch X 2 for linear & circular polarization study
  • Signal monitoring outputs at uplink & downlink
  • C/N and S/N measurement facility

Technical Specifications:

Satellite Uplinking Transmitter

  • Frequency :Frequency : 2.4, 2.427, 2.454 & 2.481 GHz PLL Synthesized ISM Band
  • Display : LCD 16X2 Backlit Spurious output : 30 dB typical
  • RF Output Z : 75 Ohms Unbalanced
  • RF output level : +3 dBm nominal
  • Path Loss : Upto 35dB variable attenuation
  • Audio 1 : Int. 1KHz sine wave / Ext Mic Ext. Function Generator waveform
  • Audio 2 : Int. 1KHz sine wave / Ext Mic Ext. Function Generator waveform
  • Video : Colour/Monochrome Camera/VCD
  • Waveform : upto 5MHz Function Generator
  • Digital : Max bit rate 500KHz typical
  • RS232 : PC serial port compatible intput
  • Tele-command : Selectable 4 bit binary input with selectable 4 addresses
  • Enable : Telecommand Frame available at digital input
  • FM deviation : Variable on audio and video/data

Satellite Downlink Receiver

  • Frequency :2.4, 2.427, 2.454 & 2.481 GHz PLL Synthesized ISM Band
  • Display : LCD 16 X 2 Backlit
  • RF Input Z : 75 Ohms Unbalanced
  • Sensitivity : -85dBm
  • Path Loss : 20dB typical variable attenuation
  • Audio 1out : Speaker inbuilt/output
  • Audio 2 out : Speaker inbuilt/output
  • Video Out : 5MHz bandwidth, 1V p/p
  • Digital : Max bit rate 500KHz typical TTL
  • Rs232 : PC serial port compatible output
  • Down-converter : 400-500MHz output for spectrum analysis
  • Telemetry : 4 bit binary LED output with Selectable 4 addresses
  • Valid/Error : Tele-command Frame available at Correction digital output
  • RSSI Out : Received signal strength output for C/N Measurement

Satellite Link Emulator

Transponder Uplink

  • Frequency :2.4, 2.427, 2.454 & 2.481 GHz PLL
  • Synthesized ISM Band
  • Display : 16X2 LCD Backlit
  • RF Input Z : 75 Ohms Unbalanced
  • Sensitivity : -85dBm
  • Uplink Path Loss : 20dB typical variable attenuation
  • Telemetry : 4 bit binary LED output with Selectable 4 addresses
  • Valid/Error : Telemetry Frame available at digital Correction output

Transponder Downlink

  • Frequency :2.4, 2.427, 2.454 & 2.481 GHz PLL Synthesized ISM Band
  • Display : 16X2 LCD Backlit
  • Spurious output : - 30 dB typical
  • RF Output Z : 75 Ohms Unbalanced
  • RF output level : +3 dBm nominal
  • Path Loss : Upto 25dB variable attenuation
  • Tele-command : Selectable 4 bit binary input with selectable 4 addresses
  • Enable : Telecommand Frame available at digital input
  • Test Output : Audio 1, Audio2, Video, Digital
  • Down-converter : To spectrum analyzer 400-500 MHz
  • RSSI Out : Received signal strength output for C/N measurement
  • Band limiting : 18MHz fixed typical
  • Noise addition : Variable
  • Signal delay : upto 0.6s on Audio1 channel
  • Signal fading : Variable 10dB

Spectrum Analyser
  • Frequency : 10 MHz – 500 MHz
  • Center frequency : 4 digit LED display
  • Accuracy : + 0.1%
  • Resolution : 100KHz
  • Sensitivity : -90dBm
  • Attenuator : 20dB External
  • Input Impedance : 50 Ohms (BNC)
  • Horizontal scan : upto 50MHz/div continuous
  • Center freq. : Variable control
  • Dynamic range : 60dB typical
  • CRO Output : Linear X out (BNC)
  • : Log Y out (BNC)
  • Antennas : Microstrip Log periodic X 2, Helix LHCP X 2 & Helix RHCP X 2, Microstrip Patch X 2, Parabolic Dish X 2
  • Mount : Antenna mount X 2
  • Software : PC Serial communication software
  • Accessories : Camera, Microphone, Video to VGA converter Card, Cables BNCBNC X6, Tee connector X2, RS 232 Rx & Tx Cables

Area & Scope of Experiments:

  • To set up an active & passive satellite communication link and study their difference. To study the advantages of satellite communication. To study the communication satellite link design: process of transmitting a signal to a satellite (UPLINKING), reception of same signal via satellite (DOWN LINKING) and functioning of transponder.
  • To measure baseband analog signal parameters.
  • To measure the signal parameters like fm deviation in an analog FM/FDMTV Satellite link on spectrum analyser.
  • To study the functionality of a satellite MODEM.
  • To measure Linear and Circular polarization of antennas on spectrum analyser.
  • To measure the C/N ratio, threshold on spectrum analyser.
  • To measure the S/N ratio.
  • To study the effect of fading and measure the fading margin of a received signal on spectrum analyser.
  • To measure the Propagation Delay of signal.
  • To measure pathloss using spectrum analyser.
  • To study noise on spectrum analyser.
  • To measure the digital baseband signal parameters in a satcom link. To measure the range of baud rates that the system can support.
  • To send telecommand and receive the telemetry Data and study the operation of a codec.
  • To setup a RS-232 satellite communication link using com ports of PC.
  • To calculate Bit Error Rate in a satcom link.

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