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SATELLITE COMMUNICATION LAB STC24 Amitec Satellite Communication Lab STC24 Amitec STC24 Features: Amitec Model STC24 Satellite Communication Lab is the first of its kind using actual techniques of satellite communication. It can uplink a given signal to a satellite link emulator, which can be stationed up to 100 feet away. The satellite will then re-transmit the same signal at a different frequency to a downlink station, which will receive the signal. Audio signal can be fed through a condenser microphone provided at Transmitter and reproduced on built-in loud-speaker at Receiver. Video signal can be sent from camera and viewed on a video monitor provided with the system. Actual emulation of satellite communication link can be performed with emulation of path loss, propagation delay, noise, fading. * Microwave operation * Tele-command and telemetry facility * Manchester encoding & CRC error checking based PC-PC communication * Emulation of signal fading, thermal noise * Variable propagation delay. * Variable path loss at two ends of uplink and downlink channels * High RF output power and low noise * Digital display of PLL synthesized frequency in Transmitter, Receiver and Satellite Emulator * Condenser microphone and speaker provided for audio link * Camera and monitor provided for video link * Satellite emulator has built-in antennas, frequency transponder for communication link * Helix (LHCP & RHCP), Yagi, Dish & Patch antennas provided 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 Satellite Downlink Receiver Frequency : 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 encrypted input (19200, 8,N,1) 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 Frequency : 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 decrypted output (9600, 8, N, 1) Specifications are subject to change due to constant innovation in technology.Accessories shown are not part of standard equipment. 2.4, 2.427, 2.454 & 2.481 GHz 2.4, 2.427, 2.454 & 2.481 GHz Mfd by: Amitec Electronics Ltd. Regd. Off: 504, Nilgiri, Barakhamba Road, New Delhi-110001 Works: 4/32, Site-4, Industrial Estate Sahibabad, UP-201010 amitec@rediffmail.com, www.amitec.co.in 91-120-4371276, 91-9811839949, 91-9810193153 RADAR & SATELLITE Amitec STC24 Technical Specifications Satellite Receiver Satellite Link Emulator Transponder Uplink Transponder Downlink E-Manual: Installation DVD for ease of Learning Optional : Spectrum Analyser SAA05 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 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 Correction digital output 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 479.5 MHz RSSI Out : Received signal strength output for C/N measurement Band limiting : 18MHz fixed typical Noise addition : Variable Signal delay : upto Signal fading : Variable 10dB Antennas : Microstrip Yagi X2, Helix LHCP X2 & RHCP X2, Microstrip Patch X2, 25 cm dia Parabolic reflector with 0.25 f/d typical X2 Mount : Antenna mount X2 Software : PC Serial communication software Accessories : Camera, Microphone, monitor, Cables BNC-BNC X6, Tee connector X2, RS 232 Rx & Tx Cables 0.6s on Audio1 channel Amitec STC24 Technical Specifications Suggested related equipments: List 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 of 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 satcom 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. :: Antenna design and simulation software : Antenna training Lab ATS20 : Antenna Analyser ATS10 : Microwave Antenna Training System MAT10 : Wireless Comm. Training System WCT24 : Satellite Communication Training System STC24 : MIC Analyser MIC10 : Scalar Network Analyser SNA05 : Microwave Frequency Counter FCM10 : Transmission line Analyser TLA05 SATELLITE COMMUNICATION LAB STC24 Mfd by: Amitec Electronics Ltd. Regd. Off: 504, Nilgiri, Barakhamba Road, New Delhi-110001 Works: 4/32, Site-4, Industrial Estate Sahibabad, UP-201010 amitec@rediffmail.com, www.amitec.co.in 91-120-4371276, 91-9811839949, 91-9810193153
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