Software Defined Radio


This proposal is intended to design a system that shall operate over a frequency range of 1 MHz to 6000 MHz with a tunable frequency bandwidth from 200 KHz to 56 MHz. There shall be signal processing algorithms, baseband processing techniques needed along with provision to port user specific algorithms and modulation schemes. Wide range of applications such as long range and short-range communications can be done from ground to ground applications.

Software Defined Radio:

The Software Defined Radio will enable test and development of modern and next generation radio technologies with the hardware platform that can be used as a USB peripheral or programmed for stand-alone operation. The user developed Embedded modules shall be ported on to the integrated ARM processor.

The Transceiver module use a direct conversion architecture that should achieve high modulation accuracy with ultralow noise figures. The transmitted design should allow significant system margin for the external power amplifier (PA) section. The on board Transmit power monitor should have provision such that it operates at highly accurate Tx power and does the power measurements.

Intended Customer:  Defence Electronics Labs, RF Communication

The system shall consist of the following Functions/Modules:

  1. RF Transceiver Module
  2. Clock In/ Out
  3. Audio Interface Module
  4. Mechanical Enclosure
  5. Power Supply Module

Technical Specifications:

  • 1 MHz to 6 GHz operating frequency
  • half-duplex transceiver
  • up to 20 million samples per second
  • 8-bit quadrature samples (8-bit I and 8-bit Q)
  • compatible with GNU Radio, SDR#
  • software-configurable RX and TX gain and baseband filter
  • software-controlled antenna port power (50 mA at 3.3 V)
  • SMA female antenna connector
  • SMA female clock input and output for synchronization
  • convenient buttons for programming
  • internal pin headers for expansion
  • Hi-Speed USB 2.0
  • USB-powered

Project Plan


Project Milestones:

Milestone Deliverables Schedule
M1Hardware Module  design Firmware Development8 weeks
M2Software Development.6  Weeks
M3Module and Functional Testing       Base Band Processing Unit (08)        RF front end   (08 Weeks)6 Weeks
M4Mechanical Fabrication2 Weeks
Total Timeline for the Project22 Weeks

Project Execution Stages

Hardware Development: Stage I. Version 0.1
   PCB Layout Designing.
PCB’s Fabrication
Components and Instruments Sourcing  
PCB Component Assembly
Proto Testing and Validation
Hardware Development: Stage II. Version 0.2
  PCB’s Design Amendments & Fabrication
PCB Component Assembly
Proto Testing and Validation
Proto-Type Production units (5 Nos.)
Mechanical Development 
   Mechanical FabricationMechanical Die
Frontend Software Development
  Software Development
Graphical User Interface Development
Application Development
Cloud Computing.
Webpage Design and Services
Mobile APP ( Android & ios)