load coil

Dipole for 40 Meters by K4VX - Here’s a very simple and practical way to make a short but efficient 40-meter dipole. The K4VX Linear-Loaded Dipole for 7 MHz

80m mobile antenna - The antenna is made in four sections which consists of a base matching coil, a helical section, a centre loading coil and the top whip section with its capacity hat by G4DCH

Antenna Matching Coil Adjustment Procedure - Without this basic knowledge, addressing antenna problems, RFI problems, and matching problems, results in a frustrating situation. Procedure which must be followed to properly adjust a shunt matching coil.

Do it yourself HF2V - HF2V dimensions for all the coils and capacitors. Make your own HF2V antenna with 160 80 40 and 30 meters kits by OZ9AEC

Microvert antennas by DL7PE - Progress in Design of Extremely Short Transmitting Antennas Short and still efficient, how is that possible? By Juergen Schaefer, DL7PE

Antenna Efficiency - K0BG article con antenna efficiency covering topics like radiation resistance, coil losses and ground losses, other kind of losses. How calculate efficiency and Bandwidth Notes

Amateur Radio Operator’s Guide to JOTA - Downloadable brochure (PDF) that provides a handy guide to Amateur Radio terminology, instructions on making a contact, phonetics, a Morse code dictionary, rules on 3rd party operation and amateur radio courtesy.

QSL statistics - Online database of QSL card exchange status. Lookup if stations confirm QSOs and share your stats by uploading your ADIF log.

Linkradio.it - Site for radioamatori, Listen to repeaters RU7 RU19 via Internet, Download manuals YAESU ICOM KENWOOD ALINCO, Mercatino elettronica, Events calendar and Ham Fests

TruckCam UK  ^updated Priority listing - Live images uploaded from truck while operator drive around UK with APRS tracking

Ham Radio and morse Fonts - Amateur radio windows fonts with slashed zero and Phi also listed some morse code fonts available to download

Getting Started with FT-817 in Digital Modes - Getting Started with Digital Sound Card Modes with the Yaesu FT-817 Transceiver by Clint Hurd KK7UQ

Gagacom - Amateur radio accessories dealer based in Wehrheim Germany, offer Antennas, baluns, filters, antenna tuners, dummy loads, swr wattmeters by Palstar

Offhsore radio club - A group trying to collect, save and spread amongst its members as many of these broadcast programmes as possible

Visual WAIS - Visual Wais is a free HAM (Amateur Radio) software to manage WAIS (Worked All Italian Squares) award. With few clicks, it allows the complete award management, from QSO insertion to endorsement requests.

Coil Inductance Calculator - Approximate Air Coil Inductance Calculator

JT65-HF - Download setup JT65-HF Free HAM software by IZ4CZL for Terrestrial JT65A mode by W4CQZ

JT65-HF - Download JT65-HF Amateur Radio software for reception/transmission of JT65A protocol with an emphasis upon its usage in the High Frequency Amateur Bands.

Excel ADIF Converter - Use this excel spreadsheet and use it to input your old manual logbook data and have it converted to the ADIF format

ADIF Divider - Windows program to divide one big ADIF file to many shorter ADIF files, based on qso numers, in example to send it to LoTW.

Multi-Instrument - Contains a PC sound card based signal generator. It can generate functions, multitones, arbitrary waveforms, burst tones, MLS, DTMF, musical scales, white noise and pink noise, and frequency/amplitude sweep. Fully functional free trial downloadable.

HERALD P2P radio link design - Sw tool to design point-to-point multi-hop microwave links and networks, 400MHz to 58 GHz. Site/Hop Configuration; Customized Antenna & Radio Equipment Libraries; Link Budget; Path Profile Analysis ,clearance, reflections; import path profiles from SRTM maps, free download.

A homebrew UHF Dummy Load - A homebrew dummy load is usually a combination of several parallel carbon resistors, in order to be able a final resistance of 50 Ohms.

Dummy Load project - Easy project to build a dummy load using easy to get components and tools.

DRAKE TR7 Downloads - Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS