trunk code

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.

QSL - Proper postal addressing - Proper postal addressing ensures quick and efficient handling of your QSL

Postal Code Lookup - The Address Doctor, postal code lookup engine

Position of the address on the envelope - Direct QSLing require to correctly positioning the address to enable rapid optical reading and manual sorting and delivery

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

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

Using a Straight Key - John Shannon, K3WWP article on basics of learning morse code using a straight key.

CW Procedure - A page dedicated to the Morse Code contact procedure

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

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

Morse Trainer for Android - Learn morse code with Morse Trainer with your Android smartphone

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 - 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.

Cute CW - Most morse code (CW) training requires you to learn everything at once without a training process. This application changes that and separates training into phases.

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.

Band decoder - Automatic and decoder project by sm3wmv

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

CW Bandwidth described - How much bandwidth does it take to send Morse code? by Mark Amos, W8XR

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