Description

CVSD Modulator and Demodulator:

Sampling Frequency: 32 KHz ~ 50KHZ;

Sampling Frequency Mode: TTL Level;

Audio Signal: 500 Hz ~ 1KHz;
Modulator Output Mode: TTL Level
QPSK Modulator and Demodulator:
CLK: 600Hz ~ 1 KHz;

CLK Mode: TTL Level;

Data Rate: 300 Hz ~ 500 Hz;

Data Mode: TTL Level;

Carrier Frequency: 20 KHz
QAM Modulator and Demodulator:
CLK: 20 Hz ~ 200 Hz;

CLK Mode: TTL Level;

Data Rate: 10 Hz ~ 100Hz;

Data Mode: TTL Level;

Carrier Frequency: 20 KHz;

Data Generated Mode: Pseudo Random Generator
DSSS Encoder:
Basic Spread Spectrum Encoder
Original Data Length: 4 bits;

Data Input Mode: Dip Switch;

Data Length of Spread Spectrum Code: 2 bits;

Spread Spectrum Code Input Mode: Dip Switch;

Data Length after encoded: 8 bits
64 bits Spread Spectrum Encoder Original Data Length: 8 bits;

Data Input Mode: LED Display;

Data Length of Spread Spectrum Code: 8 bits;

Spread Spectrum Code Input Mode: Dip Switch;

Data Length after encoded: 64 bits

DSSS Decoder:
64 bits Spread Spectrum Decoder
Data Length Before Decoded: 64 bits;
Data Length Before Encoded: 64 bits;
Original Data Display Mode: LED Display;
Data Length of Spread Spectrum Code: 8 bits;

Spread Spectrum Code Input Mode: Dip Switch
BCH Encoder:
4 bits BCH Encode
Original Data Length: 4bits;

Data Length after Encoded: 7 bits;

Error Detection: 1 bit.
8 bits BCH Encoder
Original Data Length: 8bits;

Data Length after Encoded: 12 bits;

Error control: 1 bit; Error Detection: 1 bit.
BCH Codes Decoder:
4 bits BCH Decoder
Data Length after Encoded: 7 bits;

Original Data Length: 4 bits;

Error Detection: 1 bit.
8 bits BCH Decoder

Data Length after Encoded: 12 bits;

Original Data Length: 8 bits;

Error Control: 1 bit; Error Detection: 1 bit.
Convolution Codes Encoder:
(2,1,2) Convolution Codes Encoder
Code Rate: ½; CLK: 1 Hz ~ 10 Hz;

Data Input Mode: Series Input;

Data Length after Encoded: 2 bits;

Error Detection: 1 bit.
(2, 1, 3) Convolution Codes Encoder
Code Rate: 1/2; CLK：1 Hz ~ 10 Hz;

Data Input Mode: Series Input;

Data Length after Encoded: 2 bits;

Error Detection: 1 bit.
Convolution Codes Decoder:
Viterbi Decoder
CLK: 1 Hz ~ 10 Hz;

Data Input Mode: Series Input;

Data Length After Encoded: 2 bits;

Error Detection: 1 bit.
GMSK Modulator and Demodulator:
CLK: 600 Hz ~ 2 kHz;

CLK Mode: TTL Level;

Data Rate: 300 Hz ~ 1 kHz; Data Mode: TTL Level;

Carrier Frequency: 20 kHz;

Modulation Index: 0.5.

Function Generator & DC Power Supply Module:
Waveforms: Sine, Triangle, Square, TTL Pulse
Amplitude: >10 Vpp
Impedance: 50Ω ±10%
Duty Control: 30% ~ 60%
Display: 6-Digit LED Display
Frequency Range: 10Hz to 100 kHz (4 Ranges), 100Hz to 1 MHz (4 Ranges)
Frequency Control: Separative Coarse and Fine Tuning
Constant Voltage Output: ±5V, ±12V
Variable Voltage Output: 0V ~ ±15V Power source: 220V AC ±10%, 50Hz
Standard accessories with printed operation manual