MOD-1 SIGNAL MODULATOR
MOD-1 SIGNAL MODULATOR
MOD-1 SIGNAL MODULATOR
MOD-1 SIGNAL MODULATOR
MOD-1 SIGNAL MODULATOR
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MOD-1 SIGNAL MODULATOR

Vendor
Signal Electric Labs
Regular price
$899.99
Sale price
$899.99
Regular price
$899.99
Sold out
Unit price
per 

The Type MOD-1 Signal Modulator board is intended as a training platform in the design and implementation of classical textbook modulation. The MOD-1 interfaces with the Type NCD-1 Non-coherent, the Type CD-1 Integrate & Dump Coherent and the Type COS-1 Costas/squaring loop demodulators. Together with the Type NS-1 Noise Source and the Type BER-1 Bit Error Ratio (BER) Measurement board, a complete system can be integrated for the study of modulation, demodulation, signals and noise. The Type MOD-1 Signal Modulator generates and provides:

  • ASK, FSK, BPSK, DPSK, QPSK, Offset-QPSK (OQPSK) and 8QAM
  • Independently adjustable I and Q-Level carriers
  • Independently selectable FSK(MARK) and FSK(SPACE) frequencies
  • Independently adjustable BPSK phase (0 ~ 180 degrees (antipodal)) 
  • Selectable Data Rates of 4, 8, 16, 32 and 64kbps
  • 20-stage linear-feedback maximal-length pseudorandom data
  • 64kbps 8-bit PCM audio CODEC
  • Selectable 8, 16, 32, and 64kbps CVSD audio CODEC
  • Selectable external audio, internal on-board microphone or 16-second stored audio sound recording (Chipcorder) of your choice (play once or repeat mode)
  • On-board independent, selectable, I/Q-Data 8th-order linear-phase baseband data filters with bandwidths from 0.8Rb ~ 1.2Rb in 1% steps (Rb = Data Rate)
  • On-board selectable output modulation signal attenuator toggle switches from 0 ~ 31-dB in 1-dB steps
  • I/Q data outputs for signal constellation study
  • Unmodulated in-phase and quadrature carrier outputs
  • Test Mode (Test Bit Mode Select) for I-Data, Q-Data and Amplitude-Data bits to observe carrier phase, amplitude and constellation data point(s)
  • Pseudorandom data output Test Mode (Test Data Select) that tests all modulation types
  • Connects to Types NCD-1, CD-1 and COS-1 demodulators via CAT-6 cable to transmit/receive TX Data/Recovered Rx Data and TX Clock/Regenerated RX Clock for BER measurements
  • Loops back recovered 8-bit PCM and CVSD audio for quality comparison under bit errors during BER testing
  • On-board audio power amplifier to drive external speaker (not supplied)
  • DC power inputs are polarity protected

The Type MOD-1 Signal Modulator board comes with:

  • Technical Manual that covers Configuration, Operation, General Theory, Block Diagrams, Schematic Diagrams with complete design philosophy. 195 Pages, 184 Figures, 29 Tables. Parts List. A complete course by itself.
  • Five, 3-foot length RG-58/BNC 50-ohm cables
  • One, 3-foot length CAT-6 (or CAT-5e) network cable
  • 33, 2-pin configuration jumpers
  • Two, 12-VDC wall-mount power supplies (or you can use your own)
  • One, alignment tool.
  • Type MOD-1 board outline is (width x depth) 14" x 12" (355.6 x 304.8mm).
The Type MOD-1 Signal Modulator requires +/- 12VDC at 400mA, maximum. Technical Manual is keyed to product serial number and is therefore NOT sold separately.