log periodic design

Cubical Quad Antenna Design  ^pop - By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna.

1270Mhz Yagi Antenna - Build your own antenna for the 23cm band ( 1250Mhz - 1280Mc ) using some aluminium and this simple design.

M1KTA Antennas W3EDP - Notes on W3EDP Antenna by M1KTA

Sugar Delta - Special Dx'ers Radio Group - SUGAR DELTA Official Home Page. DX Information, Fresh News, Downloads, Online Directory, Logs

QSL.NET Logs - Index of logs hosted on DX.QSL.NET

DX'ers log search - Arkansas DX Association links to logs

Logikey K-3 - CW keyer by Idiom Press

Hal Communications - HF radio data communications products, analog and DSP modems

Radio Adventures - Design and manufacturing of electronic components, kits, and accessories for the amateur and commercial communications. CMOS Keyers, W1AW receivers, PC borads kits

QTH.COM Priority listing - QTH.COM by KA9FOX offer classified swap ads for amateur radio and web design along to evoluted web hosting

DX Report from Colombia - DX Reports objective is to quickly issue the DXLogs made by Yimber Gaviria in Colombia

Yagi Designer  ^pop - Program that produces antenna radiation patterns and graphs for SWR, forward gain, and F/B ratios

ASAP - A Free general purpose antenna analysis user-oriented software program for numerical electromagnetic antenna design, antenna modeling and antenna analysis.

M1FXY Colin - Ham radio software downloads including sstv, logging and morse code

Amlog4 amateur log - Windows log program,fast entry for contest work, view the snapshots to see amlog4 without download

Prolog2K - Commercial logging software for windows, with QSL route functions, logbook conversions, rig control and cluster support by Datamatrix

LOGvrr - Freeware logging software by Roberto IN3VRR featureing LogBook, CallBook & PacketCluster capabilities

K2PMC Logging System Priority listing - Easy to use flexible system with many features (e.g. multiple logs, file export, print etc.)

TTYlink - TTYLink is a freeware client chat telnet application designed for packet radio and available for Windows NT 4.0 and Windows 95/98.

Zelscope  ^pop - Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

Amplifier Simulation Program - ASP 4.0 - Design weak signal GaAs FET or bipolar PreAmps. Automatically designs for optimum gain, NF, VSWR or all.

KM5KG network designer - Windows98 Program for RF Design

PLL2 - 2nd Order phase locked loop design for passive and active circuits. Bode plot, step response, design parameters

AAVoice digital voice processor Priority listing - "Digital voice processor for amateur radio operators. It use prepared ""wav""-files for transmition. Can work in the beacon mode. Optionally you can use simple circuit for PTT-control. It has a lot macros for tramsmitting. Can cooperate with RZ4AG AALog logger."

Electronics Symbols - Over 400 electronic symbols explained, in spanish