Search results

H44G Log Online Solomon Islands Temotu Islands

Focused on technology to serve emergency response in clackamas county, oregon.

Founded in 1990, Nearson, Inc. has been providing our customers with exceptional value with the products and services we offer. VHF, UHF mobile radios, Cellular, PCS equipments as well as ISM band wireless data and WLAN applications.

Examples of absorbtive low-pass filters in which the unwanted high-frequency energy is separated from the wanted output and then dissipated in matched resistors

CE9/VE3LYC and CE9/PA3EXX Wollaston and Diego Ramirez Islands 2011

A very compact and multifunctional digital amateur radio station for the radio operation at home, on the way or in the emergency radio implemented with a Raspberry Pi 4, an Elecraft KX2, a Kenwood TH-D74 and a USB GPS.

Amateur radio, Technology, Towers, Land, Wilderness, real estate, Visalia DX Convention Report #1 Flexradio Antennas Dxpedition, Elecraft introduces K3, here are pictures of the radio from the outside and inside from the Visalia DX Convention

This is a page to detail how I remotely operate my Elecraft K2 HF transceiver via my home network. The method used should apply to pretty much any amateur transceiver that can be controlled by serial port.

Amateur radio web site of Peter Miles , VK6YSF. The purpose of this site is to promote amateur radio and also as a way to document and share the various radio activities and projects that I'm involved with.

Artwork Created in Verve by Michael A. Maynard K4ICY includes some nice amateur radio related paints

Collins Collector Clubs, Nets, Magazines & Lists

A non profit organisation run entirely by volunteers to promote Low Power Radio.

LZ Open Contest Club - free membership, event's calendar, compare logs online

Amplitude Modulation Forever for ham radio operators, shortwave listeners and collectors

Distribute Coax Cables and Connectors for VHF UHF and Microwave

This project describes a DIY all band HF SDR transceiver. Built around a Softrock 6.3 kit, it boasts a 20W homebrew amplifier and ATmega168 microcontroller for USB control. An LCD displays frequency, power, and SWR. Automatic LPF selection and SWR protection enhance functionality. Compatible with Rocky and PowerSDR software, this project provides a cost-effective and powerful HF SDR transceiver for hobbyists.

Miscellaneous ham radio stuff from K2DBK

How N1GY built his ride for Amateur Radio.

Anderson PowerPole 15/30 Amp Connector

Display time around the workd just with a point and click

RF Coaxial Relays from stock is the answer to your urgent small quantity needs.

VP8O South Orkney 2011 DXpedition January 27 to February 8, 2011

An interesting article on basics about Baluns, intoducing the skin effects on radio frequency currents and its effects on receiving and trasmitting article by VE7FO

How to setup and configure the buddipole antenna in the J-Pole mode for the six meter band

The N0QBH QRSS project page, a couple of projects using available kits for improved frequency and timing stability. A configurable DDS VFO 100mW transmitter with LCD display and a modified Hans Sommers 40m 100mW transmitter

Manufacture capacitors, sensors, diodes, varistors, chokes, inductors, ferrites and accessories

A nice article hosted on amateurradio.com on how to get started with HSMM-Mesh, the High Speed Multimedia-Mesh, from selecting a router to publishing applications

F4FAP maintains a useful listing of current saltellites that are on the air and that can be easily heard and worked.

Since 1946, VK6 Weekly News has delivered weekly broadcasts to amateur radio operators across Australia, particularly in the VK6 region. The broadcasts include news updates, acknowledgments of contributors, and calls for operators to engage by transmitting news or submitting stories. This initiative strengthens community ties among amateur radio enthusiasts and encourages collaboration in maintaining the network of repeaters. The broadcasts reach various states, including Western Australia, Queensland, and New South Wales, ensuring that information is disseminated widely. VK6 Weekly News emphasizes the importance of operator contributions, thanking them for their efforts in sustaining the amateur radio community. Accessible through multiple platforms, it supports ongoing amateur radio activities and development in the region. Operators are invited to participate actively, enhancing the richness of the news content and fostering a collaborative spirit within the amateur radio community.

A prototype of a switch foot made on a square aluminium stock frame

An article describing basic concepts of antenna radiation, and in particular directional antennas like Yagi antennas or Quad antennas and how they determine the direction or signals.

Review of the popular Icom IC-2100 VHF ham radio transceiver by YB3TD

Amateur Radio Operator since April of 2005. My time as a Technician was primarily spent working for the community and various organizations to provide Emergency Communications. I originally became a ham to work DX but found enjoyment volunteering for the local community.

Official Kenwood memory control program for TM-V71A / TM-V71E TM-D710A / TM-D710E RC-D710

Mike Delta Victor Dx Group Spain

Penta Laboratories is a Manufacturer and Distributor of Vacuum Tubes, Capacitors and Electron Tubes for Broadcast, Industrial, Marine, Medical, and Avionics applications worldwide.

Operating a modern amateur radio station, particularly for advanced digital modes or microwave experiments, often requires precise test and measurement equipment. This resource from NI (National Instruments), now part of Emerson, showcases a wide array of hardware and software solutions designed for demanding test objectives. Their portfolio includes modular instruments and configurable software interfaces, such as _LabVIEW_ and _TestStand_, which integrate AI assistance via _NI Nigel™ AI_ for code completion and sequence building. For those involved in RF and microwave work, the offerings extend to vector signal transceivers, RF signal generators, software-defined radios, and spectrum analyzers. These tools are crucial for characterizing antenna performance, optimizing transceiver circuits, or developing custom radio systems. The company emphasizes its 50 years of innovation, with 40 years dedicated to _LabVIEW_, highlighting a long-standing commitment to engineering solutions. The site also details products for data acquisition, electronic test, and wireless design, covering components like CompactDAQ modules for precise sensor measurements and various communication bus interfaces. Their events and perspectives sections offer insights into topics such as 5G technology and strategies for breaking out of testing silos, providing a broader context for their measurement solutions.

Realization of confortable communications. RF Filters

Past and current operations dedicated to St. Maximilian Maria Kolbe (SP3RN)

Mike's amateur radio blog from Rhodes Island ,Dodecanese, Greece

Do you want to see how your FT8 signals are being received in the other parts of the globe?

A 15-pin data switch, typically a rotary-knob type designed for DB-25 connectors, forms the basis for this microphone selector project. The resource details the conversion process, which involves replacing the original DB-25 connectors with **RJ-45** or **RJ-12** jacks to accommodate modern amateur radio microphones. It specifically addresses wiring for radios like the Icom IC-706 series (including the IC-7000 and IC-703) and Yaesu transceivers such as the FT-857, FT-897, FT-817, FT-7800, FT-7900, FT-8800, FT-8900, FTM-100, and FTM-400. The design ensures all microphone lines are switched straight through, with separate contacts for external speaker/headphone jacks, allowing simultaneous switching. The project emphasizes the practical application of switching between a headset for net control and a hand mic for rag-chewing without repeatedly plugging and unplugging cables. It highlights modifications to the original concept, such as eliminating a separate PTT jack by integrating PTT into headset cables and building the external speaker cable directly into the selector. The article provides guidance on managing the non-color-coded wiring often found in these data switches by soldering wires one by one from old to new connectors, ensuring correct pin alignment. This approach simplifies the conversion, making it accessible for hams seeking a functional and cost-effective mic switching solution.

CIS Prefix Suffix (Oblast) List at KARC

This paper discusses the sources of feed line currents and the methods used to control them.

Metal products manufacturer for Grounding, cable management, surge arrestors, tower accessories, Coax standoff arms for telescoping towers, Safety stand tower platform, Mast steps, tower installation tools

Quartslab has over 30 years of experience in supplying quartz crystals to the international communications market. Our product range includes the supply of quartz crystals in the frequency range 1.5 to 225 MHz in all popular holder types as well as crystal oscillators in DIL8 and DIL14 packages.

Times Technologies Vector Impedance Analyzer Review

The two dipoles are parallel with a distance of 12 cm and are also fed in parallel. The total length of the 4 m dipole is 208 cm and the 6 m dipole is 280 cm.

Printed circuit board fabrication

Ham radio antenna manufacturer, duplexers, antenna rotors and antenna accessories based in Brazil