LimeSDR

Research on Application of Physical Layer Access Protocol for Space-Based Edge Computing Nodes

by
Research on Application of Physical Layer Access Protocol for Space-Based Edge Computing Nodes

Click the “High Technology and Industrialization” above to subscribe! Abstract:This paper studies the design of a lightweight physical layer protocol for space-based access networks and completes its application in the Feiteng edge computing node. A ground simulation system was established to implement the design of a technical verification scheme, providing a feasible technical approach for … Read more

GnuRadio Hacking: Using GnuRadio and SDR to Crack Fixed-Code Wireless Remote

by
GnuRadio Hacking: Using GnuRadio and SDR to Crack Fixed-Code Wireless Remote

*Author:Xue Bi 0xroot @ Vulnerability Box Security Team 0×01 Signal Capture In this article, we will demonstrate a wireless replay attack on a wireless egg vibrator of a certain brand model using GnuRadio and SDR hardware. The common frequency bands for wireless remotes in the market typically operate at 315MHz, 433MHz, and a few may … Read more

Interpretation of Emission Standards for Air Pollutants in Lime and Calcium Carbide Industries (GB 41618—2022)

by

Part.1 What is the background for the introduction of the standard? The “Opinions of the Central Committee of the Communist Party of China and the State Council on Deepening the Battle Against Pollution” clearly states that during the 14th Five-Year Plan period, efforts should be made to strengthen the coordinated control of fine particulate matter … Read more

Malahit DSP2 Licensed SDR Radio Receiver

by
Malahit DSP2 Licensed SDR Radio Receiver

The Malahit DSP2 second-generation receiver, also known as a wideband radio receiver, features domestic hardware and runs software from Russia, specifically the Malahit DSP 2nd generation 2.40 full-feature firmware. It supports a full range of reception from 10KHZ to 380MHZ and 404MHZ to 2GHz. The firmware running on this device is fully registered and can … Read more

Introducing SDR-Berry: An Open Source SDR Project Based on Raspberry Pi

by
Introducing SDR-Berry: An Open Source SDR Project Based on Raspberry Pi

SDR-Berry is an open-source software-defined radio (SDR) transceiver project based on the Raspberry Pi, utilizing the LVGL graphical user interface. This is an ongoing project aimed primarily at learning C++ programming, digital signal processing (Liquid DSP), and the use of the LVGL v8 GUI toolkit. The functionality is currently in the testing phase, and the … Read more

Building A Raspberry Pi Based SDR Radio Scanner

by
Building A Raspberry Pi Based SDR Radio Scanner

0x00 What Is SDR? “Software Defined Radio (SDR)” has actually been researched and developed for decades, originating from the U.S. military’s multi-mode radio project. Currently, software-defined radio technology is widely used in our daily mobile communication systems. For example, the signal processing in base stations heavily utilizes programmable FPGAs and DSPs. In smartphones, baseband processors … Read more

High-End SDR Receivers and Transceivers Overview

by
High-End SDR Receivers and Transceivers Overview

Amateur Radio Interesting and Fun Ham Community This article was published in November 2018 The Spectrum Monitor Magazine Author: Thomas Translated by: BG5WKP Zhu Yi SDR Introduction Part 1: Introduction to SDR and SDR Applications First, ask yourself what the goal of SDR is.Do you want to monitor ham radio traffic? How about aviation communications? … Read more

Building a Satellite Ground Station with LimeSDR Mini

by
Building a Satellite Ground Station with LimeSDR Mini

LimeSDR Mini Satellite Ground StationAuthor: Daniel Estévez My project uses the LimeSDR Mini as the basis for a ground station for the geostationary satellite “Es’hail 2” (known as “QO-100” in the amateur radio community). The satellite includes two linear transponders, one of which is 250 kHz wide and suitable for narrowband modes such as single … Read more