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Building High Power, High Q, Loading Coils - This page describes the loading coil (inductor) that W8WWV built for my center-loaded 160 meter (1.83 MHz) vertical antenna.

The Lazy-H vertical antenna - A versatile antenna for dx work

160 Meter Vertical - This is a 90 foot tall top loaded vertical for 160 meters. It is constructed from aluminum irrigation tubing and has four sets of four guys each by w7iuv

Top Loaded Portable Vertical - A 3.5 Mhz top loaded vertical antenna built using 2 elevated radials by DJ9RB

Loaded Vertical for 80 Meters - Another version of the DJ8RB loaded vertical antenna

Base Loaded 160M Half-Sloper Antenna - If you want an antenna resonoant on the 160 meters band this is a possible solution, but of course, need space.

Idiot's guide to antennas - A very basic guide to antennas concept. Explain the usage of dummy load, basic antennas like dipole o j-poles.

Currents in Standing-Wave Antennas - How can the current "flowing" out of the top of a mobile loading coil be greater than the current "flowing" into the bottom of the coil?

Loop Antenna Basics - Loop Antenna Basics and Regulatory Compliance for Short-Range Radio

US HF Amateur Bands - US ham radio band plan in pdf available for download and print

ITU Zones map - A PDF File of ITU zones made available by Icom America

CQ Zones World Map  ^updated - A PDF file of CQ Zones made available by Icom America.

PD5DP Ham Radio Manuals - Another collection of manuals to download offered by PD5DP. Includes ham radio manuals for Icom, Kenwood, Yaesu, Diamond and AOR products

Kenwood manuals - Many of Kenwood’s instruction manuals are available for download. Manuals are in PDF.

ICOM 746 Temperature Measurements - The ICOM 746-Pro has acquired a history of NEC 1678G (IC-151) MMIC and driver transistor 2SK2975 failures. The failure of IC-151 appears to be a combination of ESD damage from electrostatic charge on the antenna entering IC-151, and perhaps thermal heat.

TS-850 service manual - Here is the Service Manual for the Kenwood TS-850 Transceiver split into four parts for download. TS-850 instruction manual also available

TANT 136 - DOS program for calculating the performance of a T antenna. Gives loading coil info and matching plus ERP by Reg G4FGQ

DXZone iGoogle Gadget - Add The DXZone.com iGoogle gadget to your home page ot to the Google Desktop. You will be able to search the dxzone.com and load last new links feed in your home page.

Argo upload - Allows you to automaticaly upload ARGO screen captures to your webpage in a convenient way. by ON7YD

Rapido - Rapido will provide an automatic download of a JPEG picture from the internet at a certain time interval and show the picture on screen. In addition it allows you to save the downloaded picture on disk.

Morse Code translator widget - Macintosh widget converts text to Morse code and vice versa

MacTNC - MacTNC is simple, configurable terminal software used by amateur (ham) radio operators to control a TNC (terminal node controller). MacTNC performs most of the same functions of other terminal software, but includes buttons for standard commands, and allows the user to configure additional buttons for special purposes. MacTNC works only user Mac OS X because it relies on Unix components of the current operating system.

FreeSCAN - Freeware windows program for programming the Uniden SC230, BC246T, BC330T, BCD396, BC15T and BCD996T scanners. FreeSCAN allows to download and uploading programming, remote control the scanner, log hits, and supports printing out of systems and groups.

A low cost dummy load - This article describes a low-cost, low-to-moderate power dummy load, which presents a 50-Ohm resistive load from HF through 440MHz.

Cheap and simple HF dummy load - This is the report of a MFJ-259B analysis of two 100 ohm / 5 watts resistors in parallel partially in italian