coaxial trap design soft

Amateur Vertical Antenna Calculator  ^pop - This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen.

Citizens Band Mid~West - A very attractive and informative site designed to promote the professional operation and knowledge of Citizens Band Radio

Whiskey Alpha DX group - "Formed in 1996 in the USA, the ""Whiskey Alpha"" group has members in a few different country's and is growing every day. We provide all members with a ""personalized"" QSL card design. Membership has no annual dues, and is for life."

Lazy Dog Engineering LLC - Manufacturer of software-defined radios and portable antennas

International Components - International Components Corporation has an extensive range of electronic components consisting of audible signal devices, speakers, microphones, capacitors, electron tubes, connectors, and accessories designed in recognition of the diversity of applications and special characteristics encountered by designers in today's complex world.

Getting Started with Sound Card Digital Modes - Setting your Amateur radio station up to operate the wide range of modern radio software which uses the PC sound card to generate and receive signals. Murray Greenman ZL1BPU

ON4VT sstv pages - ON4VT SSTV and personal page, includes a large software review, introduction for beginners and webcams showing sstv on the net

SPRE Home Page - The Spartan Packet Radio Experiment (SPRE) is an Amateur Radio (Ham radio) communications experiment. The primary mission was to test satellite tracking using amateur packet radio and Global Positioning System (GPS). SPRE was developed and built by the University of Maryland Amateur Radio Association (UMARA) with assistance from NASA, volunteer engineers, and volunteer software professionals.

Weather Fax and Weather Satellites  ^pop - Weather Fax for Windows hardware and Software.

Scanning Reference - Informations about Scannings, with frequencies, information about scanning, hardware and software reviews

Radiodan - W7RF - BIRD RF power measuring, new and used, HENRY RF power amplifiers (used HF amps), TOHTSU coaxial relays, SAMLEX power supplies, RFI chokes reduce interference, Parts parts, tubes, Used amplifiers, radios, antennas and accessories, Los Angeles, CA.

NA7EM QSL Card design - Offer custom design and printing of extremely high quality, very affordable, QSL Cards.

MEI Software - The file MEI-10.ZIP contains educational software to evaluate antenna arrays of up to 8 elements. Two types of arrays may be studied: 2D planar arrays (Yagi-Uda, Circular, etc., up to 6 elements) and colinear arrays (up to 8 elements.)

QRZ Cdrom Shareware - Shareware and Freeware HAM radio software by QRZ.COM

Software by Swiss ATV - Small collection by Swiss ATV association

DIGTRX - High definition SSTV software for windows 2000, xp by PY4ZBZ

DXbase - Professional Logging Software for Windows 95/98/NT. A separate version is available for DOS. Full featured logging, HF radio control, Internet Packet, VHF Packet, Label Designer, Report Designer, and a lot more.

MacProp - Propagation forecasting software for the Macintosh

MacIcomControl - Radio control software for the Macintosh

Mac GrayLiner - Displays map of the world, showing day and night areas.

Promethius - Logbook software for the Macintosh by Chris Smolinski

MultiMode - Digital modes decoding software for the macintosh. Decodes CW, RTTY, WEFAX, SATFAX, ACARS, DTMF, SSTV

FBB Packet-radio BBS - FBB is a freeware bulletin board software for amateur packet-radio run on DOS Windows and Linux

SSTV FAX WX Software  ^pop - A very clomplete ham radio software collection for SSTV, FAX, and WX

40MHz Frequency Counter Module - Design for a very low cost 6-digit frequency counter module using of the shelf components