software audio filter

Slovenia contest club - Refereers,WRTC teams, rules, software, awards and schedules

Ham Radio Community Chapter Priority listing - Ham radio webcam live, solar updates, radio mods, satellite images, audio and video interactive, polls, links, constant events, weather, qrz database, by kd4sai

US Police Scanner  ^{updated  pop} - Live, 24-hour audio broadcasts of police scanners in major cities around the United States.

Industrial Communication Engineers - RF parts, filters, rf switching products.

W5NCD SSTV pages - SSTV interfaces and software, personal stuff and suggestions for sstv novices

Scanrec Scanner Recorder - Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.

QSO Manager - HF QSO/QSL/Award managment, ADIF Import/Export, full version free to everybody. Requires Access 97 or Access 2000 (with JPEG and TIFF filter installed), screen resolution 800x600/1024x768

Hell Software - Detailed review of all the Hell software currently available for the PC

Free programmable DSP-Filter  ^pop - Free programmable LOW/HIGH/BANDPASS FIR filter in the audio range 0-4kHz

Frequency Manager - Database system with 60000 frequencies, powerfull 3D MUF/LUF-propagtion software and full copntrol of several receivers

Radio Distance Software - This is a trivial program which calculates the distance and the bearing between two points. Points are either entered as geogr. data (Latitude/Longitude) or as qth-locator in the Maidenhead format (6 or 8 digits), as used in ham radio. Output is in degrees [°] for bearings, in Kilometer [km], US statute miles [mi] or nautical miles [nm] for distance

PC-ATV - PC-ATV is a program to generate testcards on your PC for tx over the ATV bands now with over 40 testcards from around the world. QRA and DTMF programs included.

Time Palette - World Time and Mapping software including Azimuthal Maps.

Paxon - New packet radio generation software made in germany

PkRattCE - TNC Terminal Software for the Windows CE 2.x Handheld PCs

SkySweeper - Provides most advanced digital signal processing (DSP) functions to be used together with your HF receiver. All signal processing is done in your PC and no extra hardware is needed. HF/VHF rx & tx and analysis software introducing free advanced SkyBoost and MFSK16 modes!

MMTTY - MM Hamsoft - MMTTY & MMSSTV plus other freeware software for amateur radio. Official English Website for JE3HHT

RemIcom-B - Freeware RemIcom-B is a very simple ICOM remote program. Display of current frequency, mode and filter ITU HF Band assignment (ITU Region 1, 2 and 3 selectable) HAM HF Band usage analog frequency band display

VisualRadio  ^pop - Interactive Webradio Software under Windows for most receivers/transceivers available today.

ERGO Radio Software - Creative Express Corporation software to enhance shortwave radio listening. Support for Drake R8A/B, NRD535/D, WJ HF-1000 and TEN-TEC RX-320 receivers, as well as propagation, path evaluation and database management.

CI-V Test - CI-V Test for Win98 (others not tested, but should work) is a simple freeware program to display received CI-V messages in Hex and text, and send commands for test purposes to the rig. This program is not intended to convienently control your rig, just explore the functions of CI-V.

SSTV1 - SSTV1 Modem software is an AFM modem that runs on the TAPR/AMSAT DSP-93 hardware platform that can be used to receive and transmit Slow Scan Television(SSTV) signals.

Ham Helper - Ham Helper is a tool that will help Ham Radio operators with many tasks. Features include UTC Time display, Callsign Country lookup, internet callsign lookup, band plans, W1AW schedule, bearing/distance calculation and more.

SSB and CW Filter - A pdf file with schematics of an ssb and cw filter AF amplifier

Toroid Pro - Designed by microwave engineers to provide filter, radio,microwave and Ham radio engineers with all relevant information of an inductor and core at his or her finger tips