number logging

Stacking broadside collinear - One popular rumor or thought is that antenna gain doubles every time we double the number of elements

N4PAL Propagation Beacon - N4PAL 10 Meter, 28.214MHz Radio Beacon Site Information and Siginal Report Logging

Gloucestershire Repeater Group - operates & maintains a number of Amateur Radio Repeaters in & around the County of Gloucestershire

Amateur Radio Licenses World Map - This amateur radio world map resizes the countries based on the number of licensed operators

Vintage QSL Collection - This website was originally inspired by the discovery of a number of QSL (radio reception report) cards dating from the 1920s and is intended to make images of the cards available to as many people as possible.

What the numbers mean in propagation - What the Numbers Mean, and Propagation Predictions--a brief introduction to propagation and the major factors affecting it.

The FT-1000 slow display problem - A number of users have reported that their display takes 15 seconds or more to fully come on

CAT cable schematic for FT 817 857 897 - To connect up your FT-817/857/897 to a PC you have a number of options. For the serial connection you can go ahead and obtain a CT-62 from YAESU. Alternatively you can make up your box with a level converter and cable using schematic in this page

HFUnderground - HFUnderground.com is dedicated to documenting longwave, mediumwave, and shortwave stations, including broadcasters, utility/military stations, pirate radio and spy numbers stations.

Free Radio Cafe: Pirate Radio Stations  ^new Priority listing - Pirate radio stations broadcasting on shortwave radio. Chatrooms, pirate radio forums, shortwave pirate station loggings, information on pirate radio broadcasting, pirate FM broadcasting.

Numbers & Oddities - Numbers stations and other odd radio stations, espionage, jamming, cryptography, code messages, sigint

E10 Spy Numbers - This page list schedules for the E10 Spy Number shortwave radio station, commonly believed to be run by mossad.

Amateur Radio Call Log - Amateur Radio Call Log is a basic ham radio logging app for Android 1.5 and above. It stores Date, Time, Station, Freq, Mode, RST, and additional comments. Also has the ability to easily look-up callsign information from the FCC database.

DXLog.net Priority listing - DXLog.net is hamradio contest logging software for Windows.

ADIF to Map Amateur Ham Radio Contacts by K2DSL - This web application will read in a ham radio ADIF file produced by many logging programs and map contacts on a Google map.

NewLog - A free windows logging program for radio hobbyists, and others by AB9B

RACES Logger  ^updated - Windows based Net Control logging software for amateur radio RACES / ARES operators by KB3HIY

youLog - youLOG is a Free and easy ham radio logging software. youLOG is an efficient logging system suitable for DX-peditions, special events, or just simple fun. It runs even on a small display netbook it\'s portable and doesn’t need to be installed. Developed by IZ0PSA

SkookumLogger - SkookumLogger is a free contest logging program for Mac OS X 10.7 (Lion) or later, supporting CW and SSB events on the six HF contest bands plus 6m, 4m, 2m, and 70cm. By K1GQ

B-Log - B-Log is a very simple, free-form logging program that offers useful features for the shortwave or scanner hobbyist, including SWBC listeners, AM-BC listeners, utility listeners, and amateur radio operators. The program is both simple to learn and use, and very powerful

Anatomy of a Loudspeaker - There are a number of important technical issues relating to the matching of speakers to amplifiers, and to the wiring of multiple speaker systems

QLF Filter - Microprocessor based interface designed receives a signal from a Morse key, processes it, and re-transmits it to the radio. A microprocessor in the circuit is pre-programmed with a proprietary algorithm which makes a number of measurements and adjustments to the less percise human generated code.

Fix the Astron Power Supply Amp Meter - How fix Astron 70 model number VS-70M amp meter not working