cat pc schematic

International Alpha Wiskey - We are central scottish DX group.

Pactor News - Ham Radio Newsletter dedicated to HF communications and the PACTOR user

Tampa Amateur Radio Club - Since 1922 Tampa's largest Ham organization. Dedicated to hams by hams. Classes in theory, code, and experimentation are a regular event.

Amateur Radio Club of Parker County - W5PC is an ARRL Special Services Club, ARES/RACES/SKYWARN in Weatherford, Parker County, TX

IK5BCU Marco - Dedicated to:jnos tcp-ip packet radio

HamFind - Search engine dedicated to amateur radio

Antenna Products - Antennas cover the RF spectrum from kilohertz to gigahertz and support countless mission critical military, air-sea navigation, ILS and voice-data communications applications.

Wellbrook Communications - Broadband active loop antennas for radio amateurs and hobbyists

Hal Communications - HF radio data communications products, analog and DSP modems

Radio Adventures - Design and manufacturing of electronic components, kits, and accessories for the amateur and commercial communications. CMOS Keyers, W1AW receivers, PC borads kits

Packet Radio y TCP/IP - Packet radio applications by Luis Fdo. y Jos? Carlos Ram¦rez, EB7CJO in Spanish

DF3OE's teleprinter museum - Teleprinter museum dedicated mainly to Baudot code teleprinters, RTTY etc.

Radio Today - UK-based hobby radio magazine originally published only on paper. Now, every article is also published on the web.

Radio Kit - Italian magazine mainly dedicated to homebrew and parts

Classic International - Experts in Wireless Communication, distributor of Ameritron, Bencher, Butternut, Hustler, Hy-Gain, MFJ, Microset, Mirage, PKW, Vectronics.

PerlAPRS - An application which can monitor both local TNC and remote Internet APRS packets

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

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.

PROADIKON - Converts your logs into ADIF (Shacklog, EasyLog, PC-Profilog, LogPlus, DXLog, Log-Projekt, QW, UKWTEST, DAS LOG, HAM-LCT, Eurowinlog, StationMaster, Catlog, ARMAP95/98/2000, SPRINT, WinFD32, WAG, Fivenine, Excel Spreadsheet, CSV or TXT file; also ADIF to ASCII, import into RXCLUS DXCC and IOTA database, *.upf import file for IOTAMEM2 and many other features)

TTYlink - TTYLink is a freeware client chat telnet application designed for packet radio and available for Windows NT 4.0 and Windows 95/98.

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!

Zelscope  ^pop - Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

HamLog for iPhone - Amateur Radio logging application for the iPhone and iPod Touch.

100W HF QRO linear amplifier - Based on Motorola MRF454, schematics and component list

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