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VPL Infotech & Consultants

(2131/2131ER) CDMA Trainer

(2131/2131ER) CDMA Trainer

Business Type Manufacturer, Exporter, Supplier
Type Trainer
Color Metallic
Voltage 110V, 220V
Click to view more

Preferred Buyer From

Location Worldwide

Product Details

Power Type
Operating Temperature
-25 +85deg C, -40 +70deg C
Auto Controller

CDMA Trainer (2131/2131ER) provides a basic understanding of the concepts behind CDMA, and various issues that need to be considered in the design of OSSS system. These include generation of various pseudorandom (PN) codes like gold, MLS & Barker with programmable tapings, variable chip rate, and digital modulations BPSK, QPSK & digital AWGN noise with programmable FIR low pass filter. In VPL 2131ER Model, Bit Error Rate (BER) measurement with known data sequence, overall data rate dependency parameters, spreading & dispreading with OSSS, SNR control, offset control & so on can be performed.

Specifications :

  • Direct Sequence spread  Spectrum (DSSS) Modulator, Demodulator
  • Programmable chi prates up to 10 Mchi p/s

Spreading Codes

  • Gold Sequences (up to 2²³-1 chips) Maximal length sequences (max length 2²³  1 chip)
  • Barker codes (length 11, 13)

Code Modulation : BPSK/QPSK/OQPSK with output spectral shaping filter; raised cosine square root filter with 20%, 25% or 40% roll off
Internal generation of pseudo-random bit stream and un-modulated carrier for test purposes

Built-in Channel impairments generation

  • Additive White Gaussian Noise
  • Frequency offset (Doppler)
  • Sequential code Search
  • 4-bit soft-quantized demodulated bits

Extensive monitoring

  • Receiver lock
  • Carrier frequency error

Standard Accessories

  • Software CD-Rom
  • Theory manual
  • Programming Software
  • Operating & applications manual
  • Serial interface cable

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