dc converter

Mirko radio collection - old military and broadcast radios

SD Campania Priority listing - SD Campania members

ZF1DC David Corbin - Countries worked on 6 meters, ZF firsts on 50 Mhz, and links to resources.

UK Radio Stations on the net - The Internet's most up-to-date list of UK radio stations simultaneously broadcasting on the web.

Valcom Fibreglass Whip Antennas - Manufacturer of Fibreglass Whip Antennas, Low and mediun Frequency, HF and VHF Antennas Specialized in the design and manufacturing of a full range of Beacon (MF), AM Broadcasting 540 - 1700 KHz, HF 1.7 to 30 MHz, VHF 30 to 156 MHz and UHF 200 to 500 MHz antennas.

EH Antenna Systems - Provide information relative to a new antenna concept. AM Broadcast antennas and amateur radio prototypes

VLF Time Signal Broadcasts - Station List Compiled by William Hepburn, LWCA

K4SET, Soundcard Digital, MFSK - "MFSK and the SoundCard Digital Software Revolution"" by K4SET and WD4HVA"

RWC Belgium - World data center for the sunspot index

Capitol Hill Monitors - Frequencies, links for scanners, email lists, online audio and more for Maryland, DC, and parts of Delaware and Virginia

AA Woodcrafts - Amateur radio call sign displays precision cut in wood. Being 18mm thick they are designed to stand on a desk or shelf.

Radio Worldwide on Shortwave - Kurzwelle, shortwave, Radio , DX, broadcasting, QRG, SWL, receiver, Empf§nger, BCDX, DX-Clubs, hobby, QSL, schedules, Frequenzen

Writing reception reports - A guide on writing reports to broadcasting stations and obtaining QSL cards

Broadcast schedules - Current broadcasting schedule by languages

Contact info for Stations Worldwide - Address and links of many broadcasting stations

Central American & Caribbean broadcasters Priority listing - Lists of Broadcasting stations in Central America and the Caribbean

SW Radio Africa Home Page - SW Radio Africa is the independent voice of Zimbabwe broadcasting on the short wave

International Listeners Association - british based swl club covering amateur, broadcast, air, marine etc. Non profit organisation.

Replay Radio - Lets you automatically record your favorite radio programs from Web Radio broadcasts, and then listen to them later on your PC, MP3 player or Pocket PC.

EchoFilter - EchoFilter uses the soundcard of a PC to process income audio signals in real-time. The narrow filter bandwidth allow the extraction signals and sounds from the audio signal that may normally be close to inaudible. It is intended for radio HAMS, hobbyists, researchers, scientists and students in the DSP field.

CQ Log - CQLog is a powerful logging program for Windows. It provides a comprehensive control centre for everyday on-the-air activities, including: full-featured logging of QSOs; statistics for many awards (for LoTW and eQSL capability); support for QRZ, RAC, GOLIST databases. You can save up to 3 pictures for each SSTV-QSO. Two-way data exchange with MixW2, and DigiPan. Integrates with DX Atlas. Real-time upload of QSOs to eQSL.cc. The program also offers a "contest-mode"; supports CAT systems for YAESU, ICOM, KENWOOD, Ten-Tec. Prints QSL cards, and QSL labels, addresses envelopes.

WXtoImg - Integrated weather satellite recorder, decoder, image viewer, and editor. Connect a 137-138MHz FM receiver to your soundcard to get images directly from weather satellites

SRL QuickSilver QS1R VERB - The QS1R VERB is the most advanced open source digital down conversion (DDC) receiver board on the market. It features a Linear Technologies LTC2208 16 bit, 130 MSPS Analog Digital Converter (ADC) and an Altera EP3C16 Cyclone III FPGA. Connectivity to the PC is through a high speed USB 2.0 interface. QS1R covers 15 kHz through 55 MHz in its standard configuration and can be used in undersampling applications to 300+ MHz.

A secure power supply - Dchematics and photos of a secure power supply (short-cut, Rf feedback, high voltage etc.) by iz7ath

Rtty interface (FSK/AFSK) with sound cards - "How to remove the so called ""ground loop"" and the reentry in the RTTY broadcast and make radio and PC happily coexist"