directx8 basic code

Five eighths wavelength vertical antenna - The basics of a five eigths wavelength vertical antenna, a form of RF antenna widely used for mobile radio communications applications

Antenna resonance and bandwidth - About antenna or aerial resonance and bandwidth and the impact of RF antenna resonance and bandwidth on radio communications systems.

Quarter wave vertical antenna - About the basics of the quarter wave vertical and ground plane antennas that ares widely used for medium wave broadcasting, mobile radio communications applications and many more.

The Basics of Contesting - Article about ham radio contesting and calendar of major contests by G4UCJ

Amateur Radio Operator’s Guide to JOTA - Downloadable brochure (PDF) that provides a handy guide to Amateur Radio terminology, instructions on making a contact, phonetics, a Morse code dictionary, rules on 3rd party operation and amateur radio courtesy.

Morse Code Podcasts - Morse code quote of the day

DX Code of Conduct - Improve ethical conduct. Unpleasant, uncivil, impolite behavior of our fellow hams reduces the enjoyment of our hobby. What You Can Do to Improve DXEtiquette

Meteor scatter or meteor burst communications - A summary, overview or tutorial covering the basics of Meteor Scatter or Meteor Burst Communications, a form of radio signal propagation often used at VHF.

MorsePal - Making Morse Code friends on and off the air. - This website helps you connect with others interested in using morse code for fun.

Morse Code Sound Samples - G4UCJ morse code table with mp3 morse audio samples

Ham Radio and morse Fonts - Amateur radio windows fonts with slashed zero and Phi also listed some morse code fonts available to download

M0RSE - A special callsign to celebrate Morse Code

PSK31 Fundamentals and Setup - Background: The PSK31 philosophy, The QPSK mode, Varicode, Sound Card DSP Setup and Operating Tips

RTTY Basics - Introduction to RTTY by G3LDI

Signals - A quick and simple reference to various communications signals, such 10/11 Codes, Morse Code, Phonetic Alphabet, Police Color/Penal Codes, Q-Signals.

Amateur Radio Call Log - Amateur Radio Call Log is a basic ham radio logging app for Android 1.5 and above. It stores Date, Time, Station, Freq, Mode, RST, and additional comments. Also has the ability to easily look-up callsign information from the FCC database.

Codec2 - Codec2 is a open source low bit rate speech codec designed for communications quality speech at around 2400 kbit/s. Applications include low bandwidth HF/VHF digital radio.

WinTone DTMF Decoder  ^updated - WinTone v2.02 id a windows DTMF Decoder

DTMF reader for iPhone - DTMF reader decodes dtmf tones, it is easy to use and with a log to save codes you like.

ProFF-Morse - French morse code learning software for windows

WinradHD - WinradHD is a Software Defined Radio (SDR) freeware application by DG0JBJ for Microsoft Windows 2000/XP/Vista/7 and based on the open source code of Winrad, written by I2PHD.

Speech Intelligibility - Articles published by the Radio Society of Great Britain, basic principles, construction of a simple equaliser circuit

Improved PL Tone encoder - N1HFX project to improve PL tone encoder providing a more stable frequency

N1AL Ultra-lightweight Morse Keyer - Homemade ultra-lightweight Morse code keyer paddle

Software Defined Radio Tutorial - Tutorial and information about the basics of the software defined radio, SDR, and links of software defined radios to JTRS, and general SDR receiver technology.