down converter

Active Loop Converter for LF - Active Loop Converter for the LF Band by Lloyd Butler VK5BR originally published in Amateur Radio, July 2000)

GI3XRQ Bangor and District Amateur Radio Society - Originally formed over 30 years ago in the seaside town of Bangor, County Down, Northern Ireland

The ElectroMagnetic spectrum - Excellent poster representing the electromagnetic spectrum from 31.2 mHz to 6.52 EHz, PDF file poster designed by Anthony Tekatch

ESA Portal - Calling all radio amateurs Priority listing - Radio amateurs worldwide are being asked to help collect data from the student-built SSETI Express satellite, due to be placed in orbit on 27 September. To encourage them, ESA’s Education department has organised two competitions and is supplying free downloadable software.

HF Radio wave propagation - Radiowave propagation in the medium and high frequency spectrum in DOC format

Kenwood TS-520 TS-520S Series Manuals - Downloadable manualsand info for Kenwood TS-520S, Manuals for DG-5, Manuals for AT-200, AT-230 Manuals for VFO-520S

Butternut manuals - Manuals of butternut antennas

Icom - Instruction Manuals - This page contains a complete list of all available Icom instruction manuals in PDF format by Icom America

Isotron antenna manulas - From this page you can download the following manuals, in Adobe Acrobat format .pdf, 40 Meter Isotron, 80 Meter Isotron

ESP - ESP provides repair service down to the component level. We offer reasonable rates. Out-of-date equipment is not a problem.

HFCC Public Data - Operational Schedule, available for free download

JACARS - Tthe ultimate program designed to connect you to ACARS systems around the world via the Internet

ADIF2CABR - Convert ADIF into Cabrillo log file format by SP7DQR

OH1AA Logging program - The OH1AA logging program package is designed to handle the book-keeping of amateur radio contacts. The package contains three separate main prog- rams by which contacts are managed. Run under DOS and is freeware

Cobracom - Oscilloscope, Realtime spectrum analyzer, Impedance meter, RLC bridge and signal generator for Windows. Is a Windows application that converts your PC into a powerful dual-trace signal analyzer (oscilloscope, FFT etc...) . Uses your PC sound card as an Analog-to-Digital a Converter to digitize any input waveform and as Digital-to-analog Converter for the signal generator. True 24 bit adc/dac 48K/96k/192k sampes/sec.

SV2AGW AGWTerm Packet Terminal - This program needs no other explanations because it is just a terminal program. The only difference is that it is multitasking. This means that you can have multiple connects and you can YAPP without restrictions. You can receive as many YAPPs as you wish simultaneously. If you have more than a RadioPort (You have more than a TNC) you can connect in any RadioPort. You can have also unlimited number of connections (about 100).

SV2AGW AGWBBS - AGWBBS is a program that manages the messages that you have downloaded from your local BBS using AGWFWD.

RAUMUF - MUF Calculator by G7RAU ( upload updated 31 August 2002) for calculating the possible e MUF on VHF during es season.

FT857 SuperControl - CAT control and logging software project especially developed for the YAESU FT-857 transceiver. Full control of the trcvr, EEPROM modification, VoIP, TCP/IP remote control, macro CW keyer, visual band scope

FT897 SuperControl - CAT control and logging software project especially developed for the YAESU FT-897 transceiver. Full control of the trcvr, EEPROM modification, VoIP, TCP/IP remote control, macro CW keyer, visual band scope

STSPLUS - STSORBIT PLUS, usually known as STSPLUS, will track the space shuttle or any satellite for which orbital data (TLEs) are available. A brief description of the program and several screen capture examples follow the links for downloading the program files.

HalloSat AO-40 Special Edition - Freeware Tracking Program for AO-40.Based on Windows timesetting, thus automatic switching between normal and daylight saving time. Preview listings with a view to the passband schedule, to the squint angle and elevation. Integrated frequency calculation for transmit frequency (uplink) depending on receive frequency (downlink) with a view to dopplershift. CAT – Control for all Icom – Transceivers without IC-821.

GrafTrak - Joe Bijou, WB5CCJ, and Richard Allen, W5SXD, are pleased to be able to provide our users and the satellite community with new Y2K compatible versions of Silicon Solutions satellite tracking software. These programs are free to be downloaded and used by anyone

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

OZ2M - Beacon Keyer  ^updated - Circuit and software to build a beacon keyer, includes downloadable packages.