graphics card

Horn antenna for AO-40 by AA2TX - These notes provide the directions for constructing a Cardboard-box antenna for receiving the AMSAT OSCAR-40 satellite on 2.4 GHz (S-band.) It is constructed from two cardboard cartons, aluminum foil, and packing tape. No coax, connectors, or soldering is needed.

The W7HR QSL Card Gallery - QSL Card Collection by Don Miller

W4BPD QSL Card Gallery - Gus Browning W4BPD QSL Card Collection

K8CX QSL CARD GALLERY - QSL Cards from ALL 338 DXCC Entities, deleted countries QSL Cards, other interesting cards

JH3GBD's QSL Card Gallery - QSL cards collection from Japan

Old QSL Card Gallery - Some very olds QSL cards

Clipperton DX Club QSL Gallery - QSL cards from dx peditions sponsored by CDXC

W7HR QSL Card Gallery

VE3TMG - QSL Card Gallery - A full page with QSL cards

HL2WA - QSL Card Collection - Received QSL Cards

Signametrics - Digital Multimeters - Signametrics corporation, manufacturer of precision digital multimeters, lcr meters, and switching cards for pci and pxi chassis

HxPI Radio - First Steps Radio - First steps in science and technology. First steps radio. Color graphics and simple explanations of basic concepts in radio. An introduction to radio communication as a technical hobby. Resources for teaching, training, learning, self-study. Modern morse code. Morse code in the 21st Century. Morse code as a technical hobby. Morse training and practice material. Exercise files to download.

Yaesu VX-2R Quick Reference Card - A downloadable free quick reference card for the Yaesu VX-2R in powerpoint and PDF file ready to be printed.

iQSL USA - QSL card printer from Niagara Falls, NY

UX5UO print - world of QSLs - Ux5uo print, world of qsls: easy and inexpensive printing of radio amateur qsl cards in russian and english

KB3IFH QSL Cards Priority listing - Amatuer Radio QSL Cards. Full Color QSL and Eyeball Cards

NDBfinder - NDBfinder allows you to use your PC and soundcard to receive, detect, identify and log NDBs (Non Directional Beacons used for maritime and aeronautical navigation)

DTMF Decoder - DTMF decoder program that uses the sound card and FFT to decode DTMF by KB5RYO

HF software digital modes for linux - This software allows a standard PC soundcard to be used as a shortwave data "modem". The whole processing is done on the main processor CPU. Support RTTY Amtor (Sitor) and Pactor 1 by Thomas Sailer, HB9JNX/AE4WA

Spectrum Analyzer Real-time FFT - Eight-channel Audio Spectrum Analyzer is a set of Real-Time Multi-Channel Gauges for investigation of data accepted from any ADC you will want or 16-, 24- and 32-bit ADC of sound card. WDM drivers support. FFT Spectrum Analysis, OscilloScope, Frequency counter, AC/DC voltmeter, Signal-to-Noise Ratio, Signal-to-Noise and Distortion, Spurious-Free Dynamic Range, Effective Number Of Bits, Total Harmonic Distortion, Inter-Modulation Distortion, Phase Shift. Special modes of dual-channel FFT spectral analysis: Separate channels spectra, Spectra of digital sum, difference, product of two signals, Spectrum of digital product of original signal and its fundamental, Spectrum of Real and Complex Transfer Function, Cross Spectrum. Standart weighing of spectra according IEC and CCIR. Oscilloscope modes (for dual-channel ADC) are: original signals, sum, difference, dependence of one channel on another, amplitude distribution of input signals.

Voice Keyer - The Voice Keyer is a free Windows based voice keyer. It is very easy to use and it handles up to seven messages. By connecting your computer soundcard to your radio it's possible to just press a button and the computer will CQ for you, to spare your voice. It can also PTT your radio via the LPT port by SM3WMV

Sound Card Interface by VK6YSF - Presented here is a transceiver to computer sound card interface complete with automated transmit key function. A sound card interface is simply the audio coupling of a computer soundcard and a transceiver to allow various computer applications that send and receive SSTV, RTTY, PSK31 and other similar modes based on soundcard generated signals.

ICOM Soundcard Interface - IC820H or other Icom Radios Soundcard interface for VHF EME use by DF9CY

Sound Card Interfacing for RTTY, PSK31, and SSTV - Using a PC sound card to coonect to your radio.

Sound Card interface - Interface to insulate the radio circuits from the computer by VK2GWK