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Master Callsign Database Editor allows to create and modify Super Check Partial database files used by many contesting programs in DTA and SCP formats. The files produced by Master Editor in DTA format can be used with CT, WriteLog, TRlog, SD, and others. The SCP versions of the produced files are for use with Win-Test, N1MM+, and others. Master Editor allows to create a callsign database from a separate log or from a set of logs in the Batch Import mode.

GH3IT online log

A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cable. From the RF point of view, the shield can be modeled as two conductors, the internal shield (the real shield, this is, ground) and the external shield, who is really far to be ground. In this way, your dipole has 3 arms, the two from the dipole and the coaxial cable shield (external face)

Ham Radio posts of general interest.

My place in cyberspace for thinking out loud about the Three Rivers Area Montioring Association

Online antenna calculator for homemade double biquad antenna for UMTS 3G 4G WiMAX WiFi frequencies. Article includes also a simple biquad antenna for 4g

A project about reversible unidirectional Beverage antennas plus a remote switching system conveniently controlled by the operator

By CE2NTT; 40-6m; SSB QSL via CE2NTT Direct

EDI is a common electronic data file format required to submit contact logs. Very popular among contest logs formats.

Tutorial- WSPR receiver with Raspberry Pi and RTL-SDR

This article discusses how volume reduction can help in the reception of weak signals by reducing the noise level. It is commonly known that reducing the volume also reduces the background noise, and especially in the reception of weak digital signals it can be beneficial

This 10 meter antenna is right out of the ARRL Antenna Book. There are 5 elements on a 24 feet boom and it performs well from 28.0 to 28.9 MHz.

How to setup the Yaesu FT-847 along to the PSTRotator under Windows 10 PC with Omnirig.

V63XG will be on the air from 4th December 2012

If You are using a separate receive antennas then you need a good protection circuit to eliminate the possibility of blowing out the receiver front-end while using these auxiliary receive antennas specially on low bands.

xCAT is an helper application for the FlexRadio 6000 series running on macOS computers to control via CAT protocol tranceivers, while xDAX purpose is to provide a way for Digital Mode Software like Fldigi, WSJT-X to access the digital audio data (DAX) of the FlexRadioTM

10 Elements Cross-Yagi Antenna for 433 MHz. The base of the 10el antenna is the recalculated RA6FOO antenna.Circular polarization is realized - by a phasing quarter-wave line, matching of horizontal and vertical polarization antennas

JD1BMH online log search. Logs of all tour can be searched.

3Y0J Club log Log Online page for Bouvet Island DXPedition 2023. Logs will be uploaded when conditions will permit.

Ham radio activity and homebrew from Italy with some interesting article on QRSS, decoding interfaces, APRS and antennas

A mircovert antenna assembled for the 40m version of the DL7PE antenna. A one meter long aluminum tube with 24mm diameter is used for the base (element 1) and a 50cm aluminum tube with 20mm diameter for element 2 (the extention). A pvc pipe, 34cm long and with a diameter of 38mm, is used to wind the coil on (1mm enamelled copper wire).

A home made, dirty and quick moxon antenna for 144 MHz made with PVC pipes.

Search the XR0ZRC On-line log powered by club log

An interesting article that compares tube amplifiers versus transistor amplifier.

Aircraft scatter is easily seen on the spectrogram window of digital communication apps, when you know what to look for. Examples of real aircraft scatter usage on six meters band

Search TY7C Log online DX Pedition Benin 2018

Construction of an antenna for experimental satellite communication, 8el. (435 Mhz) x 4el. (145 Mhz) Satellite Yagi crossed. No difficulty to built this antenna. Except the gamma match. that requires a little more attention

An original amateur radio blog in Esperanto lenguage, all about ham radio, DX, antenna.

Time Mapper UHD is a versatile mapping and time visualization program offering multi-satellite viewing with frequency display and unique country-pairs for PskReporter data. It features live feeds from logging programs and can plot ADIF files. Ideal for schools, offices, or amateur radio stations, it provides customizable 4K or HD world clock displays with over 60 map layers, including ham radio zones and natural features. The program supports various time functions and can import logs for detailed analysis. It runs on Windows 10 or 11 and offers a 30-day free trial.

A project for a 5-over-5 stack on 10 meters

Ham365 let you follow the main DX-peditions on a dedicated calendar page that shows the schedule of all monthly expeditions, running dxpeditions and even shows the dxpeditions reported on their users logs or cluster spots.

The "DIY Telescopic-V Antenna £35" project showcases the creation of a budget-friendly, portable telescopic V-shaped antenna inspired by commercial designs. Using eBay-sourced telescopic whips and custom mounting solutions, the author documents their process, testing, and adaptations. Despite challenges like weather and missing tools, the antenna performed well across multiple bands, enabling successful QSOs. Future improvements include exploring loading coils and testing in better locations. The compact design offers versatility for amateur radio enthusiasts seeking an affordable and practical solution.

Just a simple signal generator based on ADF4351 module from fleebay allows you to generate one single frequency that can go up or down in 100Khz steps via two push buttons.

Mad your own simple FS meter. It is the simplest thing to make and is good enough to see if the antenna under test is radiating more power than your old ground plane, old mobile vertical or just radiating at all in a particular direction or in all directions.

How to use AI (Artificial Intelligence) to identify Radio signals using a RTL SDR dongle and Linux (Ubuntu). This solution implement a framework using Keras and TensorFlow to learn and recognize the RF signals.

Creating a 2m Fm Repeater with a Raspberry Pi (B) and a RTL dongle.

This article introduces an Arduino-based QRP CW Transceiver designed for lower HF bands. The journey begins with the Wotduino, evolving from a keyer to a multi-mode beacon. The development includes a QRP transmitter and culminates in a receiver inspired by Roy Lewallen design. The transceiver, controlled through a control bus features a signal path, modulation, filtering, and adjustable frequency settings. Despite initial testing intentions, successful QSOs on 80 and 40 meters showcase its functional capabilities.

Amateur radio activity days dedicated to Football (Soccer) World Cup 1 June - 15 July 2018

A unique, easy-to-use Amateur Radio program for creating County, State, Section and Grid Locator outline maps of North America that can be filled by Hand, from a Contest Logger UDP Feed, or from Imported ADIF or Cabrillo Logs.

The adventures and stories of M0AUW in the UK

VP9KF Log Online Search Page

How to solve the problems with the ICOM IC R7100 receiver that every time the squelch opens or closes, it produces a clicking noise.

160 Meters on the 3-element 80 Meter Vertical Yagi antenna. The article details the author's experiences with setting up and troubleshooting a 160-meter vertical antenna integrated with an 80-meter Yagi system. Each spring, they remove and later reinstall the antenna for field harvesting. The author shares their mistakes and corrections, such as coil sizing and relay configuration issues, emphasizing lessons learned to help others avoid similar errors. They describe the tuning process, comparing model and real-world performance, and conclude with an antenna checkup, discussing galvanic corrosion and maintenance for optimal operation.

2m 70cm 23cm Low noise Amplifiers, 3 Low noise amplifiers Outdoor unit with DB6NT parts completed.

Repairing an Anritsu MS2711A handheld spectrum analyzer

Schemaric diagram for a 80m, 40m, 30m, 20m EFHW Antenna Antenna Tuner. The tuner has been designed for an antenna length of 41m and the counterpoise 7.5m.

Tips and tricks on programming the Yaesu FT-991A, from software installation and connecting to the PC via the USB Port, to properly programming memories.

Author reviews the physical appearance and ergonomics, performance on common operating modes, data modes and computer operation.

Eritrea E31A DX pedidtion online log by Clublog

A nice QRP, EME, satellites, VHF DX, Amateur radio blog by Lars Petersen OZ1BXM