fir filter

Three or four foot box loop - Plans to build a three or four foot box loop for the AM broadcast band, will tune from 530 to 1710 kHz.

Joby's Rhombic Ranch - Rhombic antennas plans

Voice Of Scotland Dx Club Priority listing - Scotland First and oldest Dx club. Links & prog. For Yeasu FT-920 & FT-1000.

Bones CB radio page Priority listing - CB Radio page, loaded with CB Radio links!

329RC106 Frank - The first 27 MHz DX page in Czech Republic

South Eastern Amateur Radio Group - EI2WRC Based in Waterford, Ireland. Resources, Information and Links about Amateur Radio, Propagation, DX, Repeaters, News, Packet etc. Also contains useful charts and maps and a Photo Album of out club.

ARI Firenze Priority listing - Firenze section of Associazione Radioamatori Italiani

CB DX Web Ring - Web ring dedicated to CB dxers by Brandon skipper

K-Com - comprehensive line of products for rejection of Radio Frequency Interference (RFI) to telephone equipment.

Nil-Jon Antennas - Performance Compact Antennas VHF/UHF mobile and base for ham, business, landmobile, police, fire, satellite, APRS, simplex, repeater, TV, FM, scanner or monitoring use.

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

Morse code & phonetic alphabets - Alphabets in Morse code, American (ex military), international, Geman, Italian, Aviation and Nato phonetics

France APRS - The first French ham site dedied to APRS.

Northern Electronics, Inc. - Offers 2 way commercial radios to public safety, fire, police. Also has battery database

ALF Enterprises - Dealer of Mobile Amateur Radio Antennas by Wilson, Firestik, Maxrad, and Larson.

Scandinavian Weekend Radio - SWR is Finland's first private shortwave station.

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

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

Spectran - Program designed to do spectral analysis and real-time audio filtering on reception of audio signals for EME, VLF, SETI applications. Offer support for MTHELL, QRSS, DFCW, NDB, WSJT by I2PHD

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

KI5YN QLF Filter - The QLF filter is a microprocessor based interface designed to go between a standard Morse code key and a radio transmitter

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

Mode J Desense Filter - This type of filter can be used in a Mode J satellite station (uplink on 2m, downlink on 70cm) to reduce the problem of the uplink signal desensing the receiver

APRS Tracker - A near-copy of the PIC-E running the GPS-2E firmware

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