Red Pitaya SDR Transceiver

Red Pitaya announces the advance order of STEMLab HF SDR Transceiver

Red Pitaya has just announced its next SDR platform, STEMlab 122.88-16 , which is a software-defined radio intended to be used as an HF transceiver in amateur radio bands.

The SDR is advertised to cover HF + 6 m (50 MHz) and includes two 16-bit and 50-ohm input ADCs and two 14-bit outputs. Based on the Xililinx Zynq 7020 FPGA that runs an A9 Cortex ARM processor, it is powerful enough to handle the various modes that are frequently seen in amateur bands and, at the same time, that support an impressive sampling rate of 122.88 MS / s.

This hardware is also fully compatible with the HPSDR software platform , which is an open source project for the operation of amateur radio SDR

Red Pitaya STEMLab HF SDR Transceiver

While this radio has been designed with amateurs in mind, it is still a very capable platform that could be used for experimentation, although with a more restricted frequency range than what you may be used to with traditional radios defined by software. .

The radio sells for $ 499 euros and will be available for “pre-order” until March 31, 2019.

STEMlab 122.88-16 SDR basic kit

  • – Adapted for HF + 50MHz SDR and other RF applications
    – Comes with two 16 bit ACD 50 ohm inputs; 14 bit DACs 50 ohm output
    – ARM Cortex A9 + Xilinx Zynq 7020 FPGA three times larger
    – A larger FPGA provides more real-time processing capabilities
    – Hardware compatible with HPSDR
    – Improved distortions: dynamic range, sensitivity, noise and crosstalk

Technical specifications


  • Processor: Processor DUAL CORE ARMCORTEX A9
    FPGA: FPGA Xilinx Zynq 7020 SOC
    RAM: 512 MB (4 GB)


  • Ethernet: 1 Gbit
    USB: USB 2.0
    WIFI: With Wi-Fi dongle
    Synchronization: With dasy chain connectors

RF inputs

  • Channels: 2
    Sample rate: 122.88 MS / s
    ADC resolution: 16 bit
    Ful scale voltage range: 0.5 Vpp / -2 dBm
    Absolute Max. Input volt range: DC max 50V (AC-coupled), 1 Vpp for RF
    Input protection: N / A, RF transformer & AC-coupled
    Overload protection: DC voltage protection

RF outputs

  • Channels: 2
    Sample rate: 122.88 MS / s
    DAC resolution: 14 bit
    Voltage range: 1 Vpp / +4 dBm
    Load Impendance: 50 ohm
    Output slew rate: N / A
    Short circuit protection: Yes

Extension connector

  • Digital lOs: 16
    Analog inputs: 4
    Analog inputs voltage range: 7 V
    Sample rate: 100 kS / s
    Resolution: 12 bit
    Analog outputs: 4
    Analog outputs voltage range: 0-1.8 V
    Communication interfaces: I2C, UART, SPI
    Available voltages: +5 V, + 3.3 V, -4 V

StemLabs: Disclaimer: The pre-order item is available at a discounted price exclusively for orders until 31 March 2019. Because the item has not yet reached us, we can not guarantee the exact date your item will ship. The estimated shipping date is 31 April 2019 but this is subject to change from the manufacturer without prior notice. If for any reason we are not able to fulfill your pre-order, we will refund you for the full amount.

STEMlab 122.88-16 SDR basic kit

€ 499.00 + shipping costs (including 22% VAT)


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