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Carolinas Chapter of the Antique Wireless Association Inc. "CC-AWA"

Cable dealer of custom and standard cables, tools and testers,

Resources for Kenwood TS-850SAT transceiver modifications, cables and tips

The HARAOA Group have orginized to go to Broughton Island(OC-212) from the 5th until the 7th February 2010.

For a discriminator output in an Icom IC-R7100, some mechanical work is required.

Yahoo 360 hma radio blog

A nice blog about DXing, Shortwave Radio Listening (SWL) and Amateur (Ham) Radio by VK3BVW

The PI6ATV repeater, operating on 10.475 MHz, serves the amateur television community by providing both analog and digital DVB-S2 services. Recent updates include user-adjustable Symbol Rate settings via Webcontrol, allowing operators to optimize their digital ATV transmissions for various conditions. This functionality, implemented on December 13, 2022, enables dynamic configuration of the digital stream. Significant technical milestones include the return of the analog ATV transmitter on 10.475 MHz, featuring a newly constructed liquid-cooled final amplifier by Edwin PD2EBH. This restoration on September 6, 2020, followed an 18-month hiatus, ensuring continued support for traditional analog ATV enthusiasts. The repeater's transition to DVB-S2 modulation, initiated on December 20, 2018, addressed capacity limitations of the previous DVB-S setup. This change from 20 MS/s with FEC 3/4 to DVB-S2 allowed for more efficient data handling, accommodating multiple channels within the available bandwidth and enhancing the overall digital ATV experience.

Sending the Audio from the Receiver to the Recorder, from the Recorder to the EQ, and sending the Audio from the EQ or Recorder to the Transmitter

QRP amateur radio & stuff by Adrian YO4HHP

Sanyo Eneloop rechargeable AA batteries. For QRP purposes, these batteries are great as a 10-cell pack

Fanpage of SN7H Contest Team

W0VLZ ham radio experience incuding vintage homebrew QRP operating and national radio company

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

Primary, Ion, and Polymer, a lithium battery primer, learn the differences between and varied uses for these diverse types of lithium batteries.

Arduino-based Automatic Amateur Radio Antenna Tuner

Ham shack located in a caravan and run by solar power. This page describes VK5SW experience of converting an old, disused and rundown caravan, to a fully functional solar powered Ham Radio shack.

N-channel scalable coherent receiver that employs the RTL-SDR technology in order to create inexpensive multi-channel receiving systems.

The video delves into the fascinating science behind antennas, which are crucial for receiving and transmitting electromagnetic waves. It explains how antennas convert electric signals into electromagnetic waves for transmission, and how they operate through the oscillation of positive and negative charges in dipole arrangements. Practical antenna implementations, such as dipole antennas for TV reception and Yagi-Uda antennas with reflectors and directors, are also discussed alongside modern dish TV antennas with parabolic reflectors for signal processing. It's a comprehensive overview of how antennas work and their significance in communication technology.

HAM ramblings from VK3TEN

Setting Up the SDR-1000 for WSJT using VAC 4.03

Presents the Westcoast Amateur Radio Association (WARA), VE7VIC, a prominent amateur radio club situated in Victoria, British Columbia. The site details the club's organizational structure, including its executive committee and meeting schedules, offering insights into local amateur radio governance and community engagement. It outlines various club activities, such as field operations, technical projects, and social gatherings, demonstrating the diverse interests of its members within the amateur radio hobby. The resource also highlights WARA's involvement in emergency communications, specifically mentioning its role in local ARES (Amateur Radio Emergency Service) initiatives and public service events. Information regarding repeater systems maintained by the club, including operational frequencies and modes, is provided, which is crucial for local hams seeking reliable communication infrastructure. The site also features a section dedicated to membership, detailing benefits and application procedures for prospective members. Furthermore, the website serves as a repository for club news, event calendars, and educational resources, supporting ongoing learning and participation among its members and the broader amateur radio community in the Pacific Northwest region. It also includes contact information for various club officers and general inquiries.

Founded in 1947 in Rochester, NY, the Rochester DX Association is an amateur radio organization dedicated to the art and science of DX operating and contesting.

Amateur Radio - US Navy - New York City Home of the Virtual Collins Radio Museum

Sell quality electronic components, equipment, and accessories. Test equipment, RF Modules, Power supplies, PCB, Stepper motors.

Coaxial cable stripping for PL-259 connectors requires precise measurements to ensure optimal RF performance and mechanical integrity. For RG-8X, the outer jacket is stripped 1/2 inch, the braid 5/16 inch, and the dielectric 1/8 inch, leaving the center conductor exposed. RG-58 preparation involves a 1/2 inch jacket strip, 1/4 inch braid strip, and 1/8 inch dielectric strip. These specific dimensions facilitate proper soldering and crimping, minimizing impedance discontinuities at the connector interface. Different coaxial cable types, such as RG-8 and RG-213, necessitate varied stripping lengths due to their construction. The _PL-259_ connector, a common UHF type, relies on these exact preparations for a secure fit and low-loss connection. Incorrect stripping can lead to high SWR, RF leakage, and mechanical failure, impacting overall station efficiency. The guide details these critical dimensions for several popular coax cables. Using a dedicated _coax stripper_ tool or precise measurements with a utility knife improves consistency.

Picture and specifications of the ICOM IC-2100H Amateur radio VHF transceiver at RigPix.com

Icom-PW1 Power Supply repair and improvements

Broadcasting from the ship the Jenni Baynton moored in Harlingen Harbour in the Netherlands, Radio Seagull can be heard on 1602 KHz AM

Article descrive the different types including coax and open-wire feeder and waveguide.

About keying speed affecting occupied bandwidth of a transmitter.

Encode/decode On-Off audio pulses for remote control of projects

Use these Variac auto transformers for specific application requirements that include, but are not limited to, home coffee roasting, tube amps, and more.

VK3RGU 438.375 MHz Gippsland Repeater in Australia

Ham radio equipment pages including Collins, National, Hallicrafters, and Hammerlund radios.

Array Solutions AIM 4170 Antenna Impedance Meter, QST Review

Delta Electronics, Inc. NY USA, family owned and operated selling all varieties of consumer electronics including 10 meter amateur radios, antennas, accessories, microphones, cw transmitters, coax cables and more

Amateurfunk bei DK8EY, Chris aus Mettmann im Neandertal.

DXLook is a free, web-based propagation platform that delivers comprehensive, real-time insight into HF and VHF conditions directly from any modern browser. It aggregates live spots from PSK Reporter, WSPRnet, RBN, and DX Cluster, complemented by NOAA space-weather metrics such as SFI, K/A indices, and geomagnetic alerts. Integrated VOACAP predictions allow practical "theory versus reality" comparisons, while the interactive world map with filters, gray line, and grid overlays enhances situational awareness. With no installation or maintenance required, DXLook provides a convenient, accurate, and accessible solution for everyday operating and propagation analysis.

Key details about the superhet or superheterodyne radio reeiver: basic overview; how it works; applications; design notes, all you need to know.

W7ED amateur radio club

An extensive document about Morse Code in amateur radio edited by W5ALT

Grid Calculator allows you to calculate either a grid square locator or the latitude and longitude of a location. Grid Calculator can be used to calculate a Great Circle bearing and distance between two stations in statute miles, nautical miles, and kilometers.

A multi-band off centre fed dipole, designed to operate on all bands from 40m (7MHz) to 6m (50MHz). Author claims it will operate on 40, 30, 20, 17, 15, 12 and 10m without an ATU (SWR <3:1) plus 6m with an ATU.

TX3A Official web site of Chesterfield Islands dx pediition from Nov 23 to Dec 6, 2009.

While transistors have many uses, one of the less known uses by amateurs is the ability for bipolar transistors to turn things on and off

This project is a 40 meter to 6 meter CW "no tune" transverter using ten 2N2222 transistors and one 2N2907. The transverter requires 2 watts of drive from a 40 meter cw transceiver and outputs 2 watts on 6 meters.

This amplifier takes advantage of the proliferation of surplus cellular 26v RF boards

A comparison of commercial 4m verticals by by Ian Hogan G6TGO