RX Audite - SDR splitter/switch with protections

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This is very powerful device combines TRX switch, RX splitter, RF limiter protection for both RX outputs, INBAND RX antenna input and optional RX preamplifier. You can share your main TX/RX ANT to two RX with RF power limiter protection.

This is ideal solution for Spectrum Panadapter, WebSDR or Skimmer Server - RBN.

When the controller is OFF then main TX/RX antenna goes to the SDR RX output - with 10 mW RF limiter protection. You can switch ON preamplifier even you left controller OFF by the POWER switch. When the controller is ON, Main TX/RX antenna is shared between TRX and SDR outputs. During TXing, the SDR RX output can be connected to the internal dummy load or to the INBAND RX antenna input. You can switch the SDR RX output to the INBAND RX ANT port not only while the TRX is TXing, but by the front panel switch, it can be switched all time. Optional HIGH IP3 internal preamplifier can be used for insertion loss compensation. Additional gain is variable, up to 14 dB.

Main functions:


One black box but many different parts inside:


Parameters:


RF limiters:


Internal Preamplifier module: (OPTION / version with preamp) link


Controller without Optional Preamplifier

SDR RX splitter RX Audite

Controller with Optional Preamplifier

SDR RX splitter RX Audite

SDR RX splitter RX Audite

Block diagram of the examples for all functions:

1. Controller is switched OFF

  • Even the Power Switch is OFF, you are able to switch ON the internal Preamp. (Controller must be powered by the DC voltage)
  • Signal from the main TX/RX ANT goes to the SDR RX output port. There are protections and RF limiter

  • SDR RX splitter RX Audite

    2. Controller is switched ON

  • Signal from the main TX/RX ANT goes to the TRX and SDR RX output port via the 2-way splitter.
  • There are protections and RF limiters for both outputs
  • You can use Preamplifier when it is assembled inside.

  • SDR RX splitter RX Audite

    3. Controller is switched ON: TRX is transmitting

  • TRX is transmitting to the main TX/RX ANT and the SDR RX output port is connected to the internal dummy load or to the INBAND RX ANT port. There are protections and RF limiter

  • SDR RX splitter RX Audite

    4. Controller is switched ON: SDR RX out switched to INBAND RX ANT by the front panel switch

  • In this case main TX/RX ANT goes to the TRX port via the protections and limiter and you can use also preamplifier.
  • SDR RX output port isconnected to INBAND RX ANT input. There are protections and RF limiter

  • SDR RX splitter RX Audite

    Measurements:


    TX way parameters

    BOX OFF: TX/RX ant to SDR out

    BOX ON: TX/RX ant to TRX and SDR out

    Isolation between RX ports

    BOX OFF: TX/RX ant + PREAMP to SDR

    TX/RX ant + PREAMP to TRX and SDR

    Related products:


    Beverage RX antennas

    3-way RX splitter

    Optional preamp module