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DL5NEJ home made morse paddle key

YPLOG logging software for Windows support Icom and Kenwood Radios, map programs and a program for coaxial trap design.

Live railroad scanner radio communications. Offer forums and links to several live railroad radio feeds

Italian manufacturer of tower and accessories. Crunk up mast, crunk up towers, towers and antenna rotators manufacturer based in italy

How to obtain a dual voltage without a transformer

Designed and built by W6NL looks like a loaded yagi this 2 element moxon antenna offer 6dbi

by Tony I0JX

This is my simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.

KF4SCI picture of a project for a VHF UHF jpole antenna working on 220 and 440 MHz.

A design of a 2 m quagi antenna by TA2IB

5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals

HF QRP Linear Amplifier with 2x 2SC2166 + 2x 2SC1969 Push Pull Transistors (13.8V)

The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m by DK7ZB

Modular Software Radio, at sourceforge

Adding an external antenna to the Belkin F5D7050

A Parasitic Lindenblad Antenna for 70cm by Anthony Monteiro, AA2TX. This is the official 16 pages PDF File published by AMSAT about the 70cm Parasitic Lindenblad Antenna.

PDF resources containing information on low cost ssb,am,cw circuits, which are useful for beginners.

Coaxial cable loss in db per 100 ft.

SolarHam is a website all about the Sun and how it affects Earth. This site is routinely updated with breaking news, sometimes hours before other Space News websites. You can trust SolarHam.com for the most up to date and accurate solar information on the net. SolarHam is a trusted and easy-to-use website for anyone interested in solar activity and space weather. It gives daily updates on <b>solar flares</b>, sunspots, geomagnetic storms, and radio blackouts. The site uses data from NOAA and NASA to show what is happening on the Sun and how it may affect radio signals on Earth. Charts and images are clear, and reports are updated often. Many amateur radio operators use SolarHam.net to check band conditions and aurora forecasts before operating. The site is fast, well organized, and focused on the needs of the radio community. Whether you are a beginner or an experienced ham, SolarHam.net is a helpful tool for understanding space weather and its impact on radio communications.

PCR100 Receiver by PA3ANG

antennas experiments by David Reid PA3HBB G0BZF

Comparison chart of most popular VHF UHF amateur radio transceivers

VHF Antenna in a lunchbox. The magnetic loop on two metres band Lloyd Butler VK5BR

N3OX 80m/160m rx loop

A site devoted to Amateur Radio Homebrewing, CW-decoder, CW QRP Transceiver for the 40 & 20 meters band, CMOS reader

List and maps of European squares for each call area. You can use the list, to estimate the location, if you hear a station on the band who's locator you do not know.

Yaesu FT 101 unofficial web site managed by NW2M

JTDX is an open-source software application for amateur radio weak-signal digital communication. It supports digital modes including FT8 and JT9. The software operates on _Windows_, _Linux_, and _macOS_ platforms. JTDX is designed for improved decoding of weak signals, a function also performed by WSJT-X and MSHV. The software facilitates weak signal decoding and transmission. It integrates with logging systems for QSO management and can automate tasks such as call management and remote RTX control. JTDX is utilized in contexts such as DXing and contests. DXZone Focus: FT8 | JT9 | Weak Signal | Multi-platform

F6DED page of a 2 element beam W8LK antenna with pictures and dimensions, in french

Magnetic longwire baluns 1:9 combined with ground, a 1:2 and 1:1 balun connections by ON6MU

Cross-Yagis for Terrestrial and Satellite Work The 2x6-El.-Cross-Yagi (28 Ohm, 2.60m Boom) by Henk, PA3GUO

The Bazooka-antenna was developed by the staff of M.I.T. for radar use. The original Bazooka used coaxial cable for the entire radiating elements.

Shortened dipole with traps for 40 meters band in portuguese

A small antenna for 2m and 70cm

Yaesu FT-1000MP, FT-990 and FT-920 packet data port to pc sound card for psk 31 interface.

The EZ QRA Locator softawre is a simple software for the calculation of QRA locators

SP5DDJ mini antenna tuner for QRP operations

At LCWO you can learn Morse telegraphy (CW) online in your browser. You don't need to install a program on your computer, and you always have your personal settings available, from any computer on the globe with an internet connection. You can also easily track your progress by means of different statistical functions.

Yaesu CAT Cable for FT-817 857 897

This little gadget is that it allows you to tune up at full peak output power, whilst limiting the average power to a fraction of the peak, thereby protecting the PA from meltdown

The 1:4 balun is of particular interest because it underlies many other configurations, and understanding it helps towards understanding the other Ruthroff balun configurations.

Easy for calculate formula which could be a wake-up call for you. The SWR value at the input of antenna cable is not a actual SWR of your favorite antenna.

Web site updated several times per month. It covers all aspects of ham radio.

Free Radio network, qsl, links, audio, chat and many infos about pirate radio

A vertical monoband that's small, light and portable, needs no counterpoise and performs as well as a home antenna

Amateur Radio bandplan in a large PDF A3 format valid for Serbia and Region 2. This band plan can be donwloaded and printed on a color laser printer for optimal quality.

MC-50 microphone modification for high emphasis, connecto kenwood ts-50 to kenwood radios.

Austin Antenna employs leading-edge antenna technology in the production of the highest performance antennas currently available. Marine Antenna, Multi-band Mobile, Point-to-Point, Base Station, Wide-band Land Based, LPDA, Linear Omni, Triplexer, Scanner Antennas

A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.

Includes EH antennas, 7Mhz vertical monopoles, 5 elements vee log-yagi for 10m and more