An introduction article about how to start with amateur radio satellite communication. In this article, the author includes information on how to home brew your own dual band satellite antenna
This antenna is a classical antenna working on 7,10,14,18,50 MHz is implemented with three traps for 30, 17 and 6 meters
A Simple Serial and Sound-Card Interface for the Yaesu FT-857D using an FT232R USB-to-serial bridge chip.
In the field of RTTY transmissions with audio boards, you can transmit either in FSK or AFSK mode. Which is better: FSK or AFSK? Advantages and Disadvantages of both methods
How to build a QFH (Quadrifilar Helix Antenna) to download images from weather satellites. A complete tutorial on assembling QFH antenna at home with simple and common tools
An essential kite antenna plan for the top band, Antenna has been tested at half wave and quarter wave.
DMR Handheld TDMA Tier I and Tier II VHF or UHF product review with information on accessories
How to use the hacked firmware on the MD-380. Tools for working with codeplugs and firmware of the Tytera MD380,
Free memory management software for the Yaesu FT-991 and FT-991A models. It runs only on Windows 7, 8, 8.1, 10 both 32 and 64 bits, it also permits basic remote control features and allow backup and restore settings and memories. Documentation in mainly in French.
Modifications for Retevis RT3 / Tytera MD-380 includes Hardware Modifications, Codeplugs, Software / Firmware Modifications.