online study

Online Dipole Antenna Calculator - Online calculator and construction instructions

4:1 coax balun design - Online calculator for a 4 to 1 coax cable balun

Tower interactions - A study on vertical-tower interactions by N6LF

North American VHF & UHF Beacons - Online database of north american VHF UHF beacons, from 144 MHz to 76 GHz band.

VK9XX LOG - Online log for VK9XX 2009 DXPedtion to Christmas Island

DP1POL Log - Antarctica station DP1POL log online

K4M LOG - K4M Online Log Midway Island 2009

TY1MS Log - TY1MS Online Log for Benin 2009 DX pedition

ZY0T Log - ZY0T Online Log - Trindade Island DXpedition 2009

K2V Log - K2V Online log St Croix Island (NA-106) 2009

XR0Y Log - The XR0Y Online Log, at clublog. Easter Island DX pedition 2009 XR0Y

TX3A log - TX3A online log for Chesterfield Islands 2009

WebSDR from Brazil - Online Web SDR from Sorocaba Brazil

Online QTH locator or map square - Find either your or your correspondent's Maidenhead grid square or location using Google Maps

RVing with Amateur - Amateur Radio for RVers article by Vern & Phyllis Modeland

LCWO Learn CW Online  ^updated - At LCWO you can learn Morse telegraphy (CW) online in your browser, use Koch Method, compare your results with others, speed practice and more

Calculate azimuth and elevation - Use this online calculator if you need to know your azimuth/elevation relative to a satellite

The Rig Register - Database for Stolen Ham Gear - Users store their equipment details and serial numbers in the database for safe keeping and can then mark them as lost or stolen.

IC-7000 page by LA4WAA - IC-7000 dedicated page by LA4WAA

RI Eastbay Police and Fire Online - Online radio feeds of Police and Fire Departments for Newport, Middletown and Portsmouth RI as well as the local Navy Fire Department.

Scanning sydney - Site dedicated to Radio Scanning in Sydney. Containing Local Frequencie, Frequencies lists, GRN talkgroups. and NOW Online feed.

Horn Antennas - Our webshop lets you buy horn antennas & microwave engineering products online. Products are usually available ex-stock for immediate despatch.

SellWeb  ^updated - Electronic components online shop, resistors capacitors cables diodes transistors ic sockets relays microcontrollers PCB prototyping switches potentiometers

International SWL-Registry - Easily obtain a free and unique International SWL Callsign and, if you wish, be added to the Worldwide Online SWL Directory. Official certificates are also available.

High-Pass Filter Design - Online high pass filter design page with introduction to high-pass filters by K7MEM