excel prefix

Common mode chokes - Excellent article on limiting noise using chockes by Chuck Counselman, W1HIS

Portable HF antennas - Excel sheet containing technical comparisons of commercial HF portable antennas compiled by ON4SKY. Includes pictures, manufacturer, db gain, band coverage, F/B ratio, price, weight and dimensions.

Assembly of the Lightningbolt Quad - One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.

ARIDX by UA1AAF - At the moment the most used program is UA1AAF. It is an excellent program written by Boris, UA1AAF, to handle ARI International DX Contest. It can simulate K1EA or N6TR workings; it will be possible to connect the RTX to the computer using a standard interface in such a way as to transmit directly in CW from the keyboard; most of the controls are like K1EA's CT and N6TR's TR ; on line help provides almost all the information necessary for using the program. Is possible to insert QSO after the contest. An appropriate utility in included for conversion in ADIF format. The program is very small and therefore works without any problems on any IBM compatible computer with DOS 3.3 and over or Windows 95/98.

DXCC map  ^pop - Large JPG dxcc map with ham prefixes and CQ zones

Amateur Radio Band Plan Layout  ^{updated  pop} - Excellent free downloadable band plans layouts ready to print in pdf format by C.Gustave Sandberg W1CGS

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

IW3SIM Rosario - Italian prefix maps and band plans, includes links to antenna plans and many ham radio resources.

MicroSignals - MicroSignals produces a line of RF and IF signal processing components that offer high performance at an exceptional value. To achieve this MicroSignals began with an engineering team that possessed an excellent background in RF Transformer and Balun design.

How Radio Works - Excellent slides explaining radio and radiowaves generation basics

W6AMT Grid Maps - Maidenhead grid maps for VHF/UHF, These maps make excellent wallpaper for your contest setup.

Amateur Radio Map of Italy - Map of italy with amateur radio prefixes and grid squares

LU Argentina prefix map - LU Argentina Country CALL division Antarctic and South Atlantic prefixes and sufixes

javAPRS Findu - Findu lookup interface, by station, position and prefix, Wap interface is availbale

HMC Electronics - We offer brand name products including metcal, loctite, weller, hakko, kester, lindstrom, desco, fluke, 3m, xcelite, chemtronics, xuron, tech spray, excelta, intermetro, scc, luxo, ideal, micro care, and scienscope. Products for Electronic Assembly and Repair. MA USA

Radios 4 you - Radios 4 you inc. where quality radios and other electronic products are blended with fair prices to produce excellent value for you. radios specializes in shortwave radios, solar rechargeable radios, am radios, and fm radios for sale.

XLZIZL by AC6LA - XLZIZL is an Excel application that analyzes the components of an antenna feed system, including transmission lines, stubs, baluns, and tuners. Calculations include impedance transforms, SWR and reflection coefficient, power loss, voltage and current standing waves, stress on tuner components, network attenuation (S21), and return loss Analysis results are available in worksheet format and in five different chart formats, including Smith charts.

WEaudio recorder - WEaudio was born as a program to record activity on VLF band, it can records audio file on HD as long as you want within prefixed pauses. It can starts record at the hour you want to monitor.

PreFind - A Free Prefix, DXCC and Locator program for Windows

Just Learn Morse Code Priority listing - An excellent tool that makes it easy to learn and practice Morse code.

Worldwide City Information Reference eBook - Phone prefix, time zone, latitude and longitude for major cities all over the world

ITU Prefix List for Amateur (Ham) Radio Operators eBook - Palm os db of itu prefixes

EasyTuner - Easytuner id an excel spreadsheet that tunes your radio. Works with all Kenwood and Icom receivers and transceivers that are computer-controllable. Sets receiver and transmitter frequency and mode

Using ferrite for interference suppression - Excellent guide to using ferrite cores for interference suppression. Understanding and Solving RF Interference and Noise Problems by Jim Brown K9YC Audio Systems Group, Inc. PDF File

CB Mic Wiring  ^pop - Excellent resource for microphones wiring including old make of cb radios. Microphone wiring can be a real pain if you arent sure how to work out which wire goes where. On this page i will try to explain the basics and also give you the wiring positions for most CB radio's