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MQ-1 four band HF beams 20,15,10,6 meters MQ-2 six band HF beams 20,17,15,12,10,6 meters, beam antennas and Hybrid Quad antennas

Memory management programming software for the Yaesu VR-5000 receiver

USB LSB AM Modem (Modulator/Demodulator) for SdR and DSB (direct conversion) transceivers by F6CTE

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.

A delta loop antenna project for the 40 meters band, include dimensions 80 meters band, with construction details, schematic and tuning instructions

This meter scale drawing program is designed to have a computer do the hard work in making a precision scale for a d'Arsonval analog meter. The resulting scales will typically be nicer-looking than those found on many commercial meters.

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.

Also known as W0MHS Loop Skywire or Full Wave Loop Antenna, here you can find N1SU interesting observations on this antennas.

46ft multi-band antenna for small gardens. Works well on 80m. An excellent DX performer and is an ideal replacement for your half size G5RV

manufacturer of VHF and microwave antennas and related products, from 50 MHz through 10 GHz

The total length of the inverted L is 240 feet, which is 7/16th of a wave length long. It has a 92 foot horizontal linear load section 1 foot above ground that terminates into a home-brewed parallel network tuner by KN4LF

Forum thread about possibility to extend VX-6R to freeband and 6 meters

WLOG2000 demonstrates a comprehensive logging software solution tailored for amateur radio operators, shortwave listeners (SWLs), broadcast listeners (BCLs), and CB enthusiasts. It integrates essential utilities such as DX Cluster and DXtelnet for real-time DX spotting, along with PSK and PSK-Pbbs capabilities supporting both TNC and PC sound card interfaces. The software also features radio and rotor control, CDbook interface functionality, and a wide array of other logging and operational tools, making it a versatile station management platform for various radio activities. Franco, HB9OAB, developed WLOG2000 to provide a robust, free logging solution, with continuous updates available from the homepage. The software supports popular digital modes like RTTY, SSTV, KGSTV, EASYPAL, FT8, and FT4, alongside traditional CW operation. It offers rig control for major manufacturers including Kenwood, Yaesu, and Icom, facilitating seamless integration with existing shack setups. Users can track awards like DXCC, WAS, WAZ, and WAC, and manage QSLs, enhancing the practical application for contesters and DXers.

Operating within the amateur radio HF spectrum requires adherence to established band plans and considerate practices. This guide from the ARRL outlines commonly accepted frequency ranges for specific modes and activities, spanning from 1.800 MHz to 29.680 MHz. It delineates segments for **CW**, **SSB**, RTTY/Data, SSTV, Digital Voice, and AM operations, including dedicated QRP calling frequencies and DX windows. The document emphasizes that these are not regulatory mandates but rather widely recognized conventions, acknowledging that high-activity periods like DXpeditions or contests may lead to temporary deviations. It explicitly references Section 97.101(b) of the FCC Rules, asserting that no station holds exclusive rights to any frequency. The guide also lists frequencies for IBP/NCDXF beacons and automatically controlled data stations. Practical advice is provided regarding frequency selection, stressing the importance of checking for existing use before transmitting. It also mentions ARRL band plans for frequencies above 28.300 MHz, directing operators to additional resources.

An air cored 1:1 balun for 3.5 to 30.0 MHz

This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable

Building a 40m (7MHz) horizontal delta loop wire antenna in the backyard that is easy and quick to setup

Audio Kit is a collection of four iphone applications which are essential for those working in audio and sound. A real time Spectrum Analyser, a Scope to display waveforms, an SPL Meter, and a sine wave Signal Generator.

A homemade Magnetic Loop antenna from a spare 3m length of RG213 working from 30m to 15m with a 130pF tuning capacitor

Ham radio blank log sheets to log your contacts

An introduction to portable shortwave receivers and sw radio. What to look for in a good portable. Reviews of Sangean ATS505. Band info and frequecies.

AGWTracker APRS program with lot's of features, map display, and more

This is a collection of articles, generally from QRP-L, about QRP operations and portable antennas. However, anything that looks interesting to me might end up here. These articles are posted here primarily for my own use; however, all are free to browse.

All about CB-Radio, DX, and the DK-Club

Buildin a VHF Jpole antenna with detailed pictures

A small antenna for all amateur bands, including 80 meters, and in a small garden without the compromise. An ideal replacement for those half size antennas such as the 1/2 size G5RV and Windom 40

PstRotator handles just about every controllable rotator in common use: Prosistel, Green Heron, HyGain, RC1 MDS, Rotor-EZ Idiom Press, Yaesu Az and many more PstRotator includes automatic tracking for satellite or EME communications, using programs like WSJT, VQLog, TACLog, Z-Track, GJTracker, EME System, Trak_SM, WXtrack, WinOrbit, Orbitron, Nova for Windows, Sat_Explorer, SatPC32, Win-Test. PstRotator supports remote control over TCP/IP.

Dual band J pole operational over the entire 6Mtr band (50 - 54MHz) and the entire 2Mtr band (144 - 148MHz), slightly favouring the upper half of both bands by VK6YSF

A simple and low cost multiband vertical hf antenna covering 5 bands (20m-10m) from an old CB antenna

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.

A program to decode Morse code via sound input of PDA to text. No additional hardware required - your need only receiver and PDA with sound input. Built-in microphone of device can be used also.

Tucson Police and EMS live scanner audio feed on radioreference.com

Low-cost 600:50 Ohm Baluns by Andrew Corney ZL2BBJ

Icom, Yaesu, Alinco, Cte, Comet, Jrc, Standard, Uniden, Kenwood italian dealer

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

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

DXNews text bullettin sent via email since 1995, with a lot of DX News, annouces, QSL managers, updates on DX pedition, cluster statistics and DX and contest calendars edited by an Italian Team of ham radio operators.

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

Designing quagi and yagi antennas on 2 Meters, some preliminary notes by Cebik, W4RNL

The American Radio Relay League (ARRL) web site

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

A large worldwide map of aeronautical service Frequencies allocation on HF bands dated 2002

A Moxon rectangle antenna projects for the 6 10 15 17 and 20 meter band but include drawings, plans, statistics and homebrewing statistics.

An interesting article on traps, pros and cons of trapping by W4RNL

How to produce great audio using your SSB rig and outboard equipment. Step by Step instructions.

An option for restricted and limited space, to operate the six meters band with an indoor three elements yagi antenna by Brian Williams

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

40 meter transmitter by K9GDT

The Ohio/Penn DX Bulletin is freely distributed on the Internet and packet clusters around the world, by Tedd Mirgliotta, KB8NW. Published almost on weehly basis the OPDX is one of the oldest DX news list on the internet.