SATELLITE COMMUNICATION TRAINER STC24
The STC24 Satellite Communication Training System 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 CCD 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, etc.
Features:
* High frequency microwave operation
* Emulation of signal fading, thermal noise,
propagation delay and path loss
* F a c i l i t y t o a t tach A n a l o g / D i g i tal
Communication Kits.
* 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
* CCD camera and video 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
* Tele-command and telemetry facility
* Protocol based PC-PC communication
* C/N and S/N measurement facility
Technical Specifications
Satellite Uplinking Transmitter
Frequency :
PLL Controlled ISM Band
Display : LCD 16X2 Backlit
Spurious output : - 30 dB typical
RF Output Z : 75 Ohms Unbalanced
RF output level : +5 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 all audio and video/data
Satellite Downlink Receiver
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)
Technical Specifications
Satellite Receiver
Down-converter : To spectrum analyzer 479.5 MHz
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
Correction digital 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 : +5 dBm nominal
Path Loss : Upto 35dB 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 : Variable 1V
Signal delay :
Signal fading : Variable 10dB
Antennas : Yagi X2,
Helix LHCP X2 & RHCP X2,
Microstrip Patch X2,
Parabolic dishX2
Mount : Antenna tripod mount X2
Software : PC Serial communication software
on CD
Accessories : CCD Camera, Microphone,
Monochrome monitor,
Cables BNC-BNC X6, Tee
connector X2, Rs232 Rx & Tx