code practice

Construction Practices - The construction of light weight structures that support wire antennas requires some definite insight into the behavior of the materials

Transmitting Antennas For HF Broadcasting - This paper discusses a number of common used HF transmitting antenna systems and corresponding reference antenna codes. The latter was developed in close consultation with regional coordination groups ABU-HFC, HFCC-ABSU.

QSL and green stamps by ON4SKY - What become our QSL once sent ? QSL routes, IRC and green stamps, the best and worst practices.

ON4AOI Automatic Band Decoder - Automaticaly select the correct antenna and bandpass filter, by ON4AOI

Operating Practice - ON4WW - A must read guide for all new and old operators. This document was originally written with the prime focus on DXing and pileup behavior. Suggestions by proofreaders have been implemented; the document is not as narrowly focused anymore as originally intended. It contains hints, tips and tricks for newcomers as well as old-timers. Additionally there are VHF/UHF operational matters, DX Cluster ethics, COPS, Conflict Situations and more.

W2LJ's QRP Amateur Radio - Dedicated to QRP, Morse Code and operating in the great outdoors, this pages contains a description of a CW QRP portable set, also some stuff on the Buddipole and PAC-12 antenna systems.

IV3YNB CW pages - Pages fully dedicated to beginners guides, includes an interesting sample of a CW QSO, and a list of frequencies to practise morse code, useful for beginners,

The Radio Reference - RadioReference.com, scanner frequency and radio communications reference source, with complete conventional frequency assignments, trunked radio system information, frequencies, and talkgroups, FCC License assignments and maps, 10-Code Lists, agency maps, files, downloads, links, and detailed agency information for most public safety, military, and local government activities.

Long Beach California Frequencies - A complete list on Long Beach Frequencies. Long Beach Police Penal Codes, and Police 10 Codes

Acarsd - acarsd is an ACARS decoder for a LINUX or Windows PC which attempts to decode ACARS transmissions in real-time using up to three Soundcards. acarsd is also a realtime ACARS Server, for the worldwide spotter and ACARS community.

DSPBOX - DOS Freeware, DSPBOX is an attempt to code the Texas Instruments DSK 'C50 in such a way to make it behave like a commercial DSP noise reduction unit, like the NIR-12, the TimeWave 599+ and others. Not only the noise reduction function has been implemented, but automatic notch, AGC and Band Pass have as well.

Phase 3D (AO-40) Decoder - This program demodulates the telemetry data signal transmitted by the AO-40 satellite (aka Phase III-D) using the PC sound card

Java GUI for dttsp - This is an attempt at writing a GUI in Java that runs with the Linux dttsp code.

CW Decoder - Decode and trasmit morse code, 5 to 50 wpm ,keep hands on the keyboard, mouse free transmit/receive operation.

CW Decoder  ^pop - This program allows CW operators to copy CW code with a computer. The decoded CW is displayed as text or can generate a side tone. There is a spectrum display of the audio with a sliding cursor to select a particular audio for decoding. The program also allows for keying a transmitter from the keyboard with full CW break-in operation.

MorseGen v1.2 - MorseGen converts text into a WAVE file of Morse code. The Tone and Speed are adjustable and the WAVE file can be repeated at a pre-set interval allowing it to be used as a CW Ident for amateur radio applications which require it.

Just Learn Morse Code Priority listing - An excellent tool that makes it easy to learn and practice Morse code.

MMvari - MMVARI is a multi-Mode SoundCard Ham (Amateur) Radio program for receiving and transmitting the RTTY-PSK-FSK-MFSK modes. The program was written to experiment with the efficiency of transmitting Japanese and East Asian languages (HL/BV/BY) using the VARICODE

Gpredict - Gpredict is a satellite tracking program for Unix-like operating systems. In the begining (v. 0.1.x) Gpredict was just a GUI client to John Magliacane's excellent satellite tracking program, Predict, but due to performance problems it has been decided to include the tracking code directly into Gnome Predict (v. 0.2.0 and later).

0sxsat - On the Satellitenprogram of DJ0SX Peter one can provide time schedules for over 500 satellites or count 23 satellites real-time imTextmode. The large advantage exists in thought out and of long observation practice which are due flexibility in the selection and the requirements to a satellite program. The program runs under Windows 95/98, NT, XP, 2000. ( German ) ...On the Satellitenprogram of DJ0SX Peter one can provide time schedules for over 500 satellites or count 23 satellites real-time imTextmode. The large advantage exists in thought out and of long observation practice which are due flexibility in the selection and the requirements to a satellite program. The program runs under Windows 95/98, NT, XP, 2000. ( German ) ...On the Satellitenprogram of DJ0SX Peter one can provide time schedules for over 500 satellites or count 23 satellites real-time imTextmode. The large advantage exists in thought out and of long observation practice which are due flexibility in the selection and the requirements to a satellite program. The program runs under Windows 95/98, NT, XP, 2000. ( German )

M0KGK SDR Decoder Software - KGKSDR is my attempt at some SDR decoding software. I'm putting this software together purely as a learning exercise, to better understand the mathematics behind SDR in general.

Locator - This is a handy windows locator program from OH3NJC Ilkka, includes C source codes and formulas

MM-TNC - This package contains a sample code for the MMTTY custom TNC emulation. It is supposed to run on the same PC or on the remote PC, and offers the functions of the TNC emulation.

Antenna elevator system for amateur satellites  ^pop - Smart homebrew antenna-ELEVATOR system with linear actuator. The actuator is a cheap and heavy tool with high enough torque, ideal for elevation systems, but in practice it needs quite an effort in order to operate correctly in your homebrew antenna system. This page inform you of the actuator's secrets.

Build a logging frequency counter - Pictures, photos, source code and plans to build a logging frequency counter