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This app permit to work in DigiModes using the latest free version of HamRadio Deluxe Suite 5.24.0.38 with the new Yaesu FT-991 (which is not supported in that version of the application) using the Yaesu FT-950 model in HRD

The Rocky Mount Amateur Telecommunications Assn. is an amateur radio society based in Rocky Mount, NC.

Information on establishing an amateur radio station in japan

RSGB World Prefix Map - Radio Amateur's Map of the World

Ham radio activities, from satellite operations, eme communications, dxing and contesting, qsling and direction findings, are just some of ham radio exciting activities

Adding 17 meter band to Mosley TA-33M yagi antenna

How to calculate range for a VHF antenna with a simple formula and how to increase VHF coverage.

General modifications applicable to any Elecraft K2

Tips and tricks to start working Meteorscatter with WSJT. Author: PE1AHX

Modification leaves nearly all of the existing Omni agc circuitry intact, simply add an audio detector which modifies the delay characteristics of the original system by G3IXQ

The Indianapolis Police Scanner on Broadcastify allows users to listen to live police radio transmissions from Indianapolis. The website provides access to emergency communications and public safety broadcasts.

Band pass filters, for radio frequency interference problems.

Analyzing digital mode contacts, particularly those made with _WSJT-X_, often requires tools beyond the native logging capabilities to identify duplicates or perform deeper statistical analysis. This utility addresses that need by providing an external application that processes the _WSJT-X_ log file, typically _wsjtx_log.adi_, to extract and present contact data in a more flexible format. It demonstrates how to parse ADIF data from a popular digital mode program, offering insights into contact patterns and potential logging errors. The software facilitates the identification of duplicate QSOs, a critical function for contesters and DXers aiming for unique contacts. It also enables further analysis of the log data, which can be useful for tracking band slots, modes, and specific callsigns over time. The application provides a practical example of how external tools can augment the functionality of primary logging software, allowing for custom data manipulation and reporting that might not be available within the original program.

Some modifications for the Tigertronics Signalink USB sound card radio interface

Italian association affiliated to Protezione Civile FIR-CB

An interesting article on how build an optimal sounding communications loudspeaker capable to optimize sound reproduction at the frequency range from 150 Hz to 3 kHz.

A study on 20m antennas by Kenny Silverman, K2KW

Official Yaesu FT-920 Specifications and options

The document explains the technical aspects of how the Internet Radio Linking Project (IRLP) works, focusing on the use of VoIP streaming software under the Linux operating system. It details the audio sampling, compression, transmission, reception, and playback processes involved in IRLP communication.

A forum post at WZ5Q with modifications of Kenwood TS-2000 audio fratures

This unit uses four capacitors, only two of which are variables, and a single tapped coil. It is built in a die-cast box, and has been tested up to 80W input power on 70MHz by G4CJZ

Here you will be able to access all of the information regarding our amateur radio disaster relief communications organization, its divisions and volunteer members

An amateur radio organization dedicated to furthering the amateur radio hobby. It consists of members from Oakland, Alameda, Piedmont and other cities in the immediate area.

G8ACC article project for a 144 & 430 MHz wavemeter

Materials, installation, inspections and certification

Tipo on using common 75 ohm coax with 50 ohm ham radio systems

Building the UHF Cheap Yagi for Satellite Communication

Display and Send Hellschreiber On Your iPhone and iPad - iPhone / iPad app to send and receive Hellschreiber

CAT & audio interface version 3 by pa5ca

Article by SWR by A. Nony Mous

FTDX 5000 product page with related accessories

Modification and verification of the FT847 to optimize 70 MHz performance by G4FUF

Freeband modification for the Yaesu FT-100

National communications Family Radio Service frequencies divided in 14 channels

This design has the following advantages low-cost components, Easy to set-up - nothing to adjust, no metalwork required, and only four soldered joints!

This web article details the construction of a 4-meter band coaxial dipole antenna, designed for operation between **70.000 MHz and 70.500 MHz**. The resource provides a bill of materials and step-by-step assembly instructions for a half-wave dipole constructed from _RG-58_ coaxial cable. The design specifies a direct 50 ohm feedpoint impedance, eliminating the need for an external matching network. Construction photographs illustrate the stripping and soldering processes for the coaxial cable elements, ensuring proper electrical connection and physical integrity. The article includes specific dimensions for the radiating elements, derived from calculations for the 70 MHz band. The project outlines the physical dimensions required for resonance at 70 MHz, with the outer braid forming one half and the inner conductor forming the other. The feedline connection is directly to the coaxial dipole's center, maintaining a 50 ohm characteristic impedance. While the article does not present SWR plots or VNA sweeps, it focuses on the mechanical construction and dimensional accuracy for achieving a functional 4-meter dipole. The design is intended for fixed station use, with no specific mention of polarization or height above ground, but implies a standard horizontal orientation for dipole operation. DXZone Focus: Web Article | 4m Coaxial Dipole | Construction Guide | 50 ohm Feed

Have you searched and searched for a good speaker for your ham radio? That perfect speaker that would let you hear voices through the noise and static without hiss?

UK distributor for AEA Technolgy Inc products and ICOM commercial transceivers

remoteAudio is an multi platform Audio streaming application for Amateur Radio purposes. The most typical use case for this software is the remote operation of an amateur radio station. remoteAudio supports multiple users and multiple audio sources. At any time multiple clients can listen simultaneously on the same radio, although remoteAudio only allows one user to transmit.

Manufacturers quality tone signaling, wildlife telemetry,avionics equipment,video transmision modems.

Technical specifications and details of the Yaesu FL-2100B HF Power Amplifier

A collection of modifications for the Icom IC706 transceiver

Beacons on 4 meter band

A Progressve Communications Receiver by W7ZOI and K5IRK. First published in the November 1981 QST

Kenwood Portable SSTV device

Yaesu Vertex VX-170 FM 2 meter handheld specifications by Universal Radio

Solving interference from television channel 11 on 144MHz transverters by Chris Cox, NØUK, G4JEC

Improve your Grid Totals by W4VHF