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The page discusses Axial-Mode Helical Antennas, focusing on turning helical antennas over perfect ground and modeling helices in NEC-2 for optimized design. It covers topics such as high-gain performance, broadband, impedance matching, radiation pattern, feedline, balun, near field, far field, and DIY applications.

A 11 pages pdf file about monoband or multiband end fed half wave vertical antenna that is great for DX and very cheap to build by Steve G0KYA

The aim of the project is test if fractal antennas can work acceptably on HF bands.

About HF Wire Antennas for field day or any day a basic wire antenna article

The problem with making your own trapped HF antennas is usually getting the coaxial traps tuned to frequency.

G3TPW CobWebb Antenna for the 14, 18, 21, 24 and 28 MHz Bands

By Guy, de ON6MU, At VHF, both the 1/4-wavelength monopole and the 5/8-wavelength monopole antennas are widely used.

Simple CW transmitter for the two meters band

Olivia MFSK digital communications are becoming popular in amateur radio because Olivia is one of the most robust methods of text keyboarding, that can perform superbly for long distance communications. Olivia frequencies, format and software

IC-718 tech. specifications

The HF ham bands can be mysterious. Some work at night, some during the day. Some seem to be good for long distance contacts while some are better for nearby contacts. Even worse, they change tremendously from hour to hour and day to day. An overview on operating on HF amateur radio bands

VHF-DX for Win95/98 is a VHF/UHF Logging Program specifically designed for 50MHz and above operation.

Images of VHF UHF antennas

The page is about the 144 Mhz Dirty Beacon project, a VHF beacon keyer by 9A4QV. It provides technical information, project details, and resources for amateur radio operators interested in beacon keyers. The content is useful for those looking to build or learn about VHF beacon keyers.

Compact and efficient magnetic loop antenna that cover from 40 to 10 meters project by G8ODE published by RSARS

A vertical portable antenna system by W0SJS that will work on 40, 30, 20, 17 and 15 meters

Drake Radio Repairs by Jeff WA8SAJ

The Yaesu FT-100 is a miniature mobile transceiver that provides coverage of the 160 to 6 meter bands plus the 144 MHz and 430 MHz bands

Specialists in (second hand/used) HF Radio & Antenna Sales, Service, Repair, Spare parts of Codan / Barrett / Qmac SSB equipment, and a licenced dealer for new sales of Barrett Communications Radio & Antenna Systems based in Australia

An interesting project about an Arduino-based frequency counter fot the Kenwood TS-520S

HF Weather Fax lets you receive marine weather radiofascimile transmissions on your iPad, iPhone and iPod Touch. Just connect it to a shortwave radio tune in a weather fax frequency, and watch the images come in.

Topic regarding a new 1KW HF power amplifier with 2x GI7B

AA5TB homemade balun article

This experiment was inspired by Peter VK2TPM's receiving loop experiments for 80 metres.

An easily transportable vertical antenna for 20 meters collapsible to 4 feet

Official Icom comparison chart for IC 756 PRO III, IC-7600, IC-7700 and IC-7800

A triband VHF Yagi antenna for 6 m, 4 m and 2 m with one feed-point by DK7ZB

A 4 yagi beam VHF antenna made with PVC easy to carry in a backpack for portable operations

NW7US logging program for palm/os

This noise canceller is suitable for use with a receiver or transceiver and works on all modes, including AM, FM and SSB.

List of north america beacons transmitting on vhf and uhf bands compiled by WZ1V

Using the solarcon A99 antenna for HF Bands

By Alfred T Yerger II WA2EHI, in this PDF file explain how to remote your rig via the internet by using HRD Ham Radio Deluxe and skype

A dipole for 2m, 4m, 6m band an hamdwritten note for a homemade vhf antenna that can be tuned across the VHF band

Italian vhf and up frequency allocations mantained by I5JRR

The website offers a comprehensive guide on high-frequency (HF) skywave propagation for amateur radio operators. It explains HF radio propagation fundamentals, including electromagnetic wave properties, HF bands, and propagation modes like skywave, ground wave, and line-of-sight. The site focuses on the ionosphere's critical role, influenced by solar activity, in refracting HF waves for long-distance communication. Real-time monitoring tools such as DX clusters, beacons, and digital modes like FT8 assist users in tracking band activity and propagation conditions globally. Forecasting methods are detailed, highlighting scientific insights into solar-terrestrial interactions and ionospheric variability. The guide also covers advanced topics like NVIS and gray line propagation, ionosonde data, and propagation prediction models, making it a valuable resource for ham radio enthusiasts aiming to optimize communications

A vertical antenna that can cover HF bands using an UN UN and a fishing pole, usage of tuner is requested.

Technical details of the yaesu FT 9000

Flash Movie describing HF (shortwave) radio propagation to beginners. Very helpful aid in understanding.

This article will help to unravel some of the mysteries as well as giving useful operating tips to maximize your chances of working that rare station

An RF power Amplifier for HF bands with 3 GI-7B tubes by CT1FMS

A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cables. Many hams connect the center conductor of the coaxial cable to one side of the dipole, and the shield to the other. Wrong!

Easy to read set of band charts for the amateur radio MF and HF bands: 160, 80, 60, 40, 30, 20, 17, 15, 12, and 10 meter by W5JCK

This article describes a project of asymmetrical hatted vertical dipole, a portable antenna that can be used for field day operations, sota, campings or even for fixed installations. This is a freestanding 20-10m antenna that is really easy to build, easy to tune and relatively easy to carry.

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

A project for a home made 5 element yagi-uda antenna for 2 meters, covering 144-148 MHz band by N1BMX

EA4EOZ home made baluns

DIY kits a 70W SSB linear Power Amplifier for YAESU FT-817 KX3 running HF 80m-10m bands

This HF contesting resource site has a large range of articles, tips and techniques, contest writeups, bandplans, links, and a fine range of Ham maps.

The Construction Principles for Duoband-Yagis 2m/70cm by DK7ZB