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A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU

DL2HRF shortened dipole antenna for 80 meters band

This Yagi has a constant element-distance of 1,50 m. You must only correct the lengths of the elements for QSY, see table down. For the bands 10 m and 12 m the Yagi is working as a reflector-radiator-Yagi, for 15 m and 17 m as a beam with radiator and director.

Wideband VHF/UHF/SHF monolithic PreAmp based on MARx-series by ON6MU

Homebrew with CF300 DGMF with about .24 dBD gain

The starting idea was to build a battery charger for Pb battery used in car and moto...

Licensing, cost, practical applications, emergency and personal uses and famous hams.

Add some gain over your rubber dummy load with this full size dipole on your HT.

A novel approach to aerial evaluation with diagrams and graphs by G3CWI

2 meters band VHF dipole with gamma match system

Military vintage radio collection including spy sets, SOE, SIS, MI6. Classic vintage military radio sets, British, German, Japanese, USA plus other countries.

How to keep from being out of band

MARS CAP Mod for TS-570

20/22 Ampere or 30/32 Ampere 13.8 volts power supply RE-PSF14A20 or PSF14A30 by ON6MU

Article on the HF dual band antenna with construction details and how to add 160 meters to the HF2V

ON4VT SSTV and personal page, includes a large software review, introduction for beginners and webcams showing sstv on the net

144 and 432 Mhz GS35b High Power Amplifier

21 mhz half wave ant -very low radiation angle - full size and light weight- all coax matching system - decoupling care to prevent low angle radiation degrade

Easy to use Audio Spectrum and PSK31 decoding program specially designed for SWL's who don't need TX or for anyone who just like to monitor PSK31 or analyse signals. Adjustable DSP and Spectrum settings for audio and frequency spectrum to set for best decoding of PSK31.

An article on TX and RX antennae for the low bands 80 and 160m by EI7BA

Collection of article and posts on beverage antennas

RTTY, Amtor, packtor, SSTV reference by WM2U

A free windows SSTV receiving program specially designed for SWLers. This sstv decoder does not support SSTV TX. Automatic saving of images, based on MMSTV enigne, support multiple sound cards and advanced quality settings. This software is just capable to decode SSTV a good choice if you need to receive slow scan TV.

This Arduino project decode ICOM CAT frequency information and switch antennas according to preset values. RX and TX antennas can even be different, a project by ON7EQ

Great shareware software collection for ham radio, includes prefix finders, locators,frequency generators and links to other ham radio software.

You've heard MS pings, of course. But what does a HSCW ping sound like?

Homebrew a vertical antenna for 40 and 80 meters band based on popular HF2V model by DL7JV

MultiKeyer is a computer keying program that supports both CW and Phone messages: CW EME Auto mode sends timed CW messages for EME and Meteor Scatter operation CW "Contest" mode sends Auto CQ, plus preprogrammed messages Sequenced Phone mode transmits prerecorded .wav files for Meteor Scatter operation Auto Phone mode transmits prerecorded .wav files for contest operation

1/2wave vertical antenna for the 6-meterband and a 5/8 ground plane antenna for 50 Mhz

This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.

W3TS small but effective antenna tuner

How to build a multi-band dipole antenna with a single coax feed. Instructions for a 160M antenna that will fit in the space that a 75M dipole will with almost as good of results as a full size 160M dipole.

If you have a computer with word processing software and a printer, you can make your own custom QSL cards, with each card individually printed for the ham you just contacted. WA7S show you how.

This is a 70cm big wheel antenna which is used at DB0FAI beacon

VE7CA experiments on 160 meters band antennas, looking for better performances on reception.

VU2RAR basic VHF power amplifier suitable for 144-146 Mhz output power can vary from 3 to 25 Watts.

This article by OK1FOU describes how to build a relatively small loop antenna which can be placed for instance at the balcony. It is especially suitable for a two band antenna covering two adjacent amateur radio bands (10/14 MHz, 14/18, etc.)

N7KSB used this 1/2 watt CW transmitter, with a roof-mounted ground-plane antenna to work all continents and over 30 countries

Homebrew 20m CW transceiver by MINOWA, Makoto 7N3WVM

Introduction to NVIS advantages and disvantags.

An antenna system is more easily interfaced to a radio when the input reactance at the feedline terminals is low or close to series resonance

Flexnet and AGW packet engine tested and reviewed by IZ7ATH

A greyline map that automatically refreshes every five minutes DX.QSL.NET

Easy to use Audio Spectrum- and PSK31 decoding program specially designed for SWL's who don't need TX or for anyone who just like to monitor PSK31 or analyse signals. Adjustable DSP and Spectrum settings for audio and frequency spectrum analasys or to set it for best decoding of PSK31 signals. By ON6MU

Launching a balloon or kite supported tall vertical or protracted inverted L.

By 9H1EL, supports RSGB 21-28, BERU, IOTA contests, FOC marathon and IARU 50MHz trophy, Control of FT1000MP, all Kenwood and ICOM Radios which have CAT system.

Freeware logging software by Roberto IN3VRR featureing LogBook, CallBook & PacketCluster capabilities

Various radio related software, including some antenna analysis, and impedance calculators.

Shareware program to receive and transmit high speed CW (morse code) used in MS (amateur radio communication mode) with MS Windows 95/98 and sound card.

Edited by Oz6OM to find out who's on 50MHz expeditions anywhere around the world. Most recent news on the web.