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Amplitude Shift Keying / Frequency Shift Keying

Experiments:

  1. To measure the parameters of various control signals.
    • Word pulse with reference to clock
    • 8 bit digital data of NRZ (Non Return to Zero) pattern
    • Data rate/select clock rate (300/600bps) to word pulse
  2. To measure the different signals involved in ASK generation
    • Mark Frequency (10 KHz).
    • ASK modulated output
  3. To measure the characteristics of ASK demodulator
    • LPF and BPF output.
    • Envelope detector output.
    • ASK demodulated output
  4. To measure the different signals involved in FSK generation
    • 8bit digital data of NRZ pattern
    • Mark frequency (10 KHz).
    • Space frequency (5 KHz).
    • FSK modulated output
  5. To measure the characteristics of FSK demodulator
    • LPF and BPF outputs.
    • Envelope detector output.
    • FSK demodulated output
  6. Frequency Separation study.

Technical Specification:

  Modulator
CARRIER SINEWAVE GENERATOR5 KHz, 10KHz
AMPLITUDE2 VPP
DISTORTION0.5%
MARK FREQUENCY10 KHz
SPACE FREQUENCY5 KHz
MUX2:1
SPACE FREQUENCY5 KHz
DIGITAL DATA8 bits
DATA PATTERNNRZ
WORD PULSE LENGTH8 bits
DATA RATE300 / 600 bps
  Demodulator
BAND PASS FILTERS5 KHz, 10KHz
ENVELOPE DETECTORTwo
LATCHOne

FEATURES:

  • All IC's are mounted on machined IC base.
  • PCB's are SMOBC finished with glass epoxy coating.
  • Multi color printed block diagram is given on the top of the kit.
  • Testing point at the end of each functional block.
  • 28 or 256 data pattern combinations available through dip switches.
  • The trainer kit is enclosed in fiber glass box for safe keep

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