call signs

2 Meter Turnstile Antenna - Here are construction plans of a Turnstile antenna that can be used for space communication on the 2 meter amateur radio band. Specifically for 145.80 mHz

Dual Loop 80 and 40 Meter  ^pop - A dual loop antenna, ZZ Wave Net HF Wire Antenna Project by VE6VIS. The antenna is basically a full wave 80 meter loop on top and a 40 meter loop on the bottom all supported from a 64 foot center support

Using the half-square antenna for low bands - Can’t put up a really high horizontal antenna for 80-meter DXing? Maybe the vertically polarized Half-Square might be the antenna for you.

CobWebb multiband folded dipole - It is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10M & 20M, the antenna is also resonant on 6M

Buddipole by ZR6KMD - A rotateable dipole specifically for the 20m based on W3FF Buddipole design by ZR6KMD

SM Swedish Hams Call Sign Lookup - Search Swedish amateur radio operators by call-sign name, family name or city, service offered by SSA

HamLog.eu - This online database, called HAMLOG, can be used free of charge by any radio amateur worldwide.

Tri-County Amateur Radio Association - An amateur radio association (club), a service organization, located in laverne, ca, usa which meets the second (2nd) wednesday of each month. non-members are encouraged to attend. the monthly newsletter is called the qrm. training and testing help available.

Callsign divisions listed by prefix - Ham call dot net, Callsign divisions listed by prefix

DXBeam - Located in France, DXBeam designs and manufactures a range of monoband, dual band and triband antennas, rotary dipoles, Moxons and Yagis

Invention of Thermionic Valve

W7DIN Desert Intertie Network - privately owned network of OPEN, Linked Repeaters operating in the Yuma area under the Club Callsign of W7DIN.

K6MVR MVRC Radio Club - The Mt.Vaca Radio Club (Call sign K6MVR ) owns and operates repeater systems in and around Sacramento, California. The systems provide reliable coverage for mobile stations throughout the Sacramento Valley region and beyond to Modesto, Chico, the Sierras, and parts of the Bay Area.

IC7000BKT Icom IC-7000 CAT Control - CAT Control for Icom IC-7000 for windows. Management and synchronization of all memory bank, Management filters, volume, tones, DUP, DTCS, import export, audio recording and log frequency and signal,Auto CQ audio for repetitive calls

WM8C Ham Radio Callsign Hat and Cap - Custom embroidered ham radio call sign hats and caps

KNLS English Service - KNLS English Service, this Is Alaska Calling! World Christian Broadcasting, Station KNLS, Anchor Point, AK USA

US Shortwave Listener Call Signs - Easily obtain an official call sign identifier for your United States SWL Monitoring Station.

DSCdecoder - DSCdecoder decodes the DSC digital signals from ships and coast stations using the sound card in your PC. You need a suitable MF, HF or VHF band radio receiver tuned to one of the DSC distress and calling channels or to one of the Navtex channels

Fcc Lookup System - The FCC Lookup System software uses the standard FCC data files in an advanced lookup system for matching a call sign to a user. The software creates index files to allow rapid searches without modifying the FCC data file. Available for both Windows and Linux.

Mini logbook - A neat free little tool to log your contacts. It automatically looks up previous contacts with recent call. Select text in MRP40 Rx- window. Auto insert that text into MiniLog via double click. By Polar Electric

Ham Fan - A free small database program for Palm OS that allows you to log ham radio contacts. You can log the call sign, name, date, time and frequency of the contact.

Virtual Legacy Radio - Windows remote control for Yaesu or Icom. Displays the current transceiver settings frequency, mode, and others on the PC in an old-fashioned way that corresponds to the look of receivers in 70's. DX-Cluster Watch (DCW) is an application that automatically refreshes a web page with the dx-cluster content, parses spot lines from it, keeps a consolidated list and inserts the spots to VLR as frequency markers by OK1FIG

Callsign Lookup - Callsign Lookup is a simple, small Apple Macintosh application that allows the amateur radio operator with a dedicated Internet connection (DSL, cable) to quickly access online callsign databases

An Intelligent keyer for FSK beacon usage - Designing a beacon keyer that transmit the relative output power along to call sign.

G0UPL 30m QRSS Junkbox Beacon - This simple 30m QRSS beacon is built entirely out of junkbox parts, the only component purchased specifically for this project was the 10,140kHz crystal.