EMC Committee Publishes New Guide for Reporting Harmful Interference

/

The RSGB EMC Committee has recently published a new “Guide for Reporting Harmful Interference to Ofcom". The leaflet contains some do’s and don’ts on the style and content of the report that has to be submitted. It also provides some examples on wording that can be used. This is the 18th leaflet the EMC Committee has released that offers advice on dealing with interference issues. 

More Information - https://rsgb.org/main/technical/emc/

Neural Codec Called 'Milestone' for Digital Voice

/

It's being heralded as a milestone in the long-overdue evolution of speech quality for land-mobile radio systems - the use of an adaptive neural network that replaces traditional signal processing.

A digital voice milestone was announced at the recent acoustics and speech conference in California, where the Free DV Project's David Rowe, VK5DGR, co-presented a paper describing a neural network that replaces traditional signal processing with machine learning.

“the first known real-world deployment of a neural codec – an important milestone that the Ham community can be proud of.”
— Free DV Project's David Rowe, VK5DGR

Rowe and programmer Jean-Marc Valin presented the details to attendees at the IEEE Signal Processing Society conference, where David said it was well-received.

“provides unprecedented speech quality and robustness for VHF/UHF land mobile radio applications.”
— David Rowe, VK5DGR

Instead of using the fixed algorithms of traditional digital voice, the FreeDV Radio Encoder, known as RADE V1, employs fully adaptive machine learning to produce a higher-quality result, developed using open-source software.

The FreeDV Project - https://freedv.org/

New Book Release - Using the Baofeng® Radio

/
New Book Release - Using the Baofeng® Radio

Using the Baofeng® Radio is a comprehensive gateway to the world of ham radio using Baofengs. It gives you everything you need to start using your handheld ham radio on the air legally, safely, and effectively. Get ready to use your radio to stay in touch with family and friends whether you are off the road, off the grid, or you want access to a reliable backup communication device. Discover uses for your ham radio, including how to relay your signal through a mountaintop repeater so you are heard far away, and a step-by-step guide to digital operations.

The book details operating with the popular UV-5R, the rugged UV-82, and the DMR-enabled DR-1801UV. Using the Baofeng® Radio covers how to program and use your radio with only the front panel and built-in settings. It then elaborates on using the free programming software CHIRP to program memory channels using a laptop or home computer. Finally, it describes how to program your radio to communicate around the world using Digital Mobile Radio (DMR), which you can access through repeaters or mobile hotspots.

Read More