load coil

TLV40m antenna - Top Loaded vertical antenna for 40m Band with elevated radials

Top loaded vertical - Vertical Antenna for 40m Band with elevated Radials Top Load is a Mesh 2 x 1 meter (Netz 2x1m) enamelled wire 0.5 mm diameter (CuL 0,5mm)

Coil calculator - On-line single-layer coil designer

Balun Construction - Construction and use of broadband transformers

Antenna Loading Coil Construction Techniques - This page explains how to construct high-Q inductor coils.

Build Your Own Coils - A method of building coils for your home made antennas

Home Brew Loading Coil for AD5X Vertical - How to make a loading coil for the AD5X portable vertical antenna

40m broadband vertical antenna - A loopy loop loaded vertical antenna operating range 7.0 to 7.3 MHz by S. C. Chuck Smith, WA7RAI

Linear Loaded mobile antenna - A vertical linear loaded antenna for 2 meters band in italian

6-Band Windom antenna  ^pop - Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio (ham) bands

An Examination of the Gamma Match - W3PG working analysis of the gamma match problem taht gives useful practical results

Antenna Tuning Unit - This homebrewed antenna tuning unit also incorporates a 50-ohm QRP dummy load, power meter (1 or 10 Watts full scale), and SWR meter

ZS6BKW Antenna - A G5RV revisitation by G0GSF Brian

DXCC Country lists - An updated DXCC country list, including a 10 band checklists in various file format made available by dx newsdesk

US Band Plan by ICOM - ICOM USA Amateur Radio HF VHF/UHF band plan updated to 2008, include a Common Country prefixes in PDF Format

RL3A webcam - The Webcam is placed in the shack of RL3A club station. When the webcam is on, photos are uploaded every 5 minutes.

Pierce Aluminum - Distributor of aluminum and a manufacturer of finished aluminum products. Pierce Aluminum offers a diverse inventory and distributes a complete line of sheets, coils, plates, bars, structural shapes, tubes, pipes and extrusions in the most varied alloys and sizes possible

Technical books online - Downloadable Amateur Radio Tube related technical books free of charge and ready to download.

Ridge Equipment - Sells a broad range of Electronic Test Equipment as well as a full line of Cables, Connectors, Loads and Accessories for commercial or amateur antenna installation and repair.

Master.dta Editor - Freeware windows program by WE3NEA that allow to view and edit the Master Callsign Database file used in many contesting programs, import and export callsigns, auto-download announced DX operations.

The KB6IBB Utilities - Ham radio frequency list consolidation software. The Ham Radio database can house a unlimited number of records. Holding frequency information from DC to Daylight. The Radio Scanner Database is designed to emulate a radio scanner. A 5,000 record table is provided and is organized by channel number.

BIP Electronics Lab Oscilloscope - Freeware windows oscilloscope uses the sound card's input to measure signals. This means that the quality of the scope depends on the quality of your sound card. The scope automatically uses the highest sample frequency available at the input that you select

Sine Wave Generator - Freeware windows Wave Generator use the sound card's output as sine wave output. A built in sweep algorithm is used by audio hackers to measure frequency repsonses of their amplifiers

Accurate Inductance Calculator - This page allows you to calculate in the most accurate way high-Q inductor coils.

100 W Resistive Load - This was a project to make a dummy load or, as the finished thing is more correctly labelled, a fifty ohm resistive load.