Amitec Satellite Communication Lab STC24 Features:
* Microwave 2.4 GHz operation Satellite Trainer
* 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
Amitec STC24 Technical Specifications
Satellite Uplinking Transmitter
Frequency : 4 channels in 2.4 to 2.5 Ghz band ; PLL Controlled 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 : 4 channels in 2.4 to 2.5 Ghz band PLL Controlled 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 : 479.5 Mhz 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 : 4 channels in 2.4 to 2.5 Ghz band ;
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 : 4 channels in 2.4 to 2.5 Ghz band ;
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 479.5 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
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
E-Manual: Installation Video for ease of Learning
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 o f a satellite.
* To measure the baseband analog signal parameters in a satellite link.
* To measure the signal parameters in an analog FM/FDMTV Satellite link.
* To study the functionality of a satellite MODEM.
* To study the phenomenon of Linear and Circular polarization of antennas.
* To measure the C/N ratio.
* To measure the S/N ratio.
* To study the effect of fading and measure the fading margin of a received signal.
* To measure the Propagation Delay of signal in a sitcom link.
* 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 RS 232 ports.
* To calculate Bit Error Rate in a satcom link.
SATELLITE COMMUNICATION LAB STC24
