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  3. RF Module for SDR

RF Module for SDR

The RF Module operating in the frequency range of 30 MHz to 512 MHz consists of three sections (i) Transceiver Assembly comprising of Transmitter, Receiver, AGC, ALC, Hopping Filter, Rx Filter Bank (ii) Power Amplifier and (iii) Harmonic Filter Assembly comprising of filter bank, High Power Solid State Switches, Dual Directional Coupler and T/R Switch. Synthesizer, part of Transceiver assembly, comprises Fast Hopping Frequency Synthesizer, Reference Oscillator. In addition to the above, the RF Module has dedicated regulators and LDOs for each assembly.

RF Module for SDR

Features

  • All solid-state Design
  • Broadband Design
  • High Power Filter Bank for Harmonics Rejection
  • Solid state switches for Fast Switching (50 uSec)
  • Fast Hopping Synthesizer with settling time of 50 uSec
  • Suitable for Co-location applications
  • Selectable Channel Bandwidth for NB and WB Services
  • Analog and Digital Modulations Support
  • VPX form factor Transceiver
  • Meets MIL STDs for Vehicular installation
  • Meets requirements of SDR with SCA compliance

Application

  • RF Module forms complete RF and IF sections of Man-pack/ Ground/ Vehicle SDR operating in 30 to 512 MHz. Supports Legacy, Analog and Digital Waveforms. Configurable and Monitored via SPI Interface

Specifications

Frequency range 30-512 MHz
Frequency step 6.25 kHz, 8.33 kHz, 12.5 kHz, 25 kHz, 1 MHz
Rx Sensitivity -95 dBm (WB), -101 dBm (NB)
IF Frequency 21.4 MHz and 70 MHz
IF Bandwidth 5 MHz (WB), 25 kHz (NB)
Dynamic Range 100 dB
Image and Spurious 90 dBc
Tx Power Output 40 Watts PEP. 8 levels selectable
Tx IF Input 21.4 MHz & 70 MHz, Modulated
Harmonics Rejection 55 dBc
Power Control (ALC) For Analog Modulations
Protections Load VSWR, High Temperature
Control Interface SPI and TTL
Status Interface Discrete TTL
Health check Power ON and BITE
BITE Provided in Tx and Rx
DPD Independent path
Supply Input 24 V DC +/- 10%
Dimensions VPX Interface for Transceiver
Customized for Power Amplifier & Filter Bank Modules
Operating Temperature -40°C to +55°C
Storage Temperature -55°C to +85°C
ENV and EMI/EMC MIL STDs compliance