Hello, my name is Mark (W5TSU). I became a hame in Feburary of 2007 as KD5AMB (tech). I now have a general class license. (Working on my Extra. :-) I enjoy electronics and amature radio. This website, is my way of keeping notes and sharing with others. If you want to ask questions you can email me at ‘mark@w5tsu.net’. My primary intrests are Software Defined Radio (SDR) and antennas. I’m an open source software eveloper. »
The Hermes-Lite 2 (HL2) is a low-cost, open source HF SDR transceiver. This is a truly fantastic radio it competing head to head with the Flex radio. The whole project – hardware and software – is fully open source, led by Steve Haynal (KF7O). Although this radio has been around for years the community support is poor. My hope is this post will help document what I’ve found for my own use and maybe help others. »
Yes, I’ve started a YouTube channel. My first post is about RMNoise, an AI filter, used to remove noise from SSB voice or CW radio signals. Noramly, audio is connected into and outo of a physical radio. I’m using Thetis radio software connected to a Hermes-Lite 2+. To connect Thetis to RMNoise I’m using Voice Meter Potato to create virtual audio cables to “wire” these together. Thetis’s Input is connected to my microphone (Focusite). »
I’m going to create a delta loop antena made from arrow shafts. I believe this should be good match from 40 to the 10 meeter band. This will include 3D printed parts for antenna mounts and for a matching coil. »
I’ve build a Digipeater. These are my notes. Equpment Using DigiPi, Digirig, and a handheld I had not used. DigiPi runs on RaspberryPi. I’m using a Pi4 with a Geekworm for Raspberry Pi UPS - X729 for grater uptime and 12 Volt support. DigiPi is a great progject developed my Craiger (KM6LYM. This project is using version 1.8.1. You can plug it into your radio’s USB interface, use a radio interface like DigiRig, or use a sound card with your radio in VOX mode, to run many digital modes. »