Search results
Query: http
Links: 15293 | Categories: 0
This query is too generic. Please try adding an additional term to focus your research.
-
-
-
Cubical Quad Antenna On-line Calculator helps on defining the size of each element and spreader. Simply give the resonating frequency and it will calculate size of each element. -
The RBN S-Meter visualizes real-time HF propagation data from the Reverse Beacon Network (RBN). It processes thousands of automated spots per hour, providing a real-time picture of active RF paths on HF bands. Users can set their vantage point using _Region Mode_ or _Grid Square Mode_. Region Mode allows selection from broad geographic areas like E. North America or Europe, while Grid Square Mode uses a Maidenhead grid square and radius for more precise data. The app displays eight region panels, each with horizontal bars for bands 160m through 6m, indicating signal strength with a color ramp from green to red. A dimmer trail shows peak hold values, and an S-unit readout provides additional detail. The app is a free web application accessible on any device, offering a practical tool for ham radio operators interested in CW, RTTY, and FT8 signals. It features a Progressive Web App installation option for enhanced usability on mobile and desktop platforms. Users can install it on Android, iOS, and Windows devices, providing a native app-like experience. The app replaces the previous Windows standalone executable, incorporating user feedback to improve features like grid square mode and automatic location detection. -
In his blog, KN9B, explain how he get started in Software Defined Radio -
Bloomfield Amateur Radio Club Connecticut -
-
The Amateur Radio network now known as the Caribbean Emergency and Weather Net was established in 1958 by Colonel Henry Frew, KV4BZ, for the purpose of having a general calling frequency for the Caribbean Islands and our North and South American friends. -
A home made cobweb antenna project made with easy to find parts 2-14 AWG speaker cables which are cut to 1/2 wavelength for each band and junction box with 4:1 Balun -
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. -
Custom EMI Filters, AC DC Three phase filters by Filter Concepts Inc. -
Over 100 currently valid callsigns for the Bailiwick of Guernsey are listed, encompassing full, intermediate, and foundation licenses, alongside special event and club station calls. The resource clarifies various callsign types, such as 2U0*** for intermediate licensees with a 50-watt limit and GU0*** for full licensees operating up to **400 watts**. This detailed compilation also includes specific QSL routing instructions for visiting operators and past residents, often referencing their home callsigns like _G4DIY_ or _DJ8NK_. The callbook further acknowledges "silent keys," providing a respectful record of former Guernsey amateurs, complete with their callsigns and dates of passing where available. It also lists local repeaters and provides important QSL bureau information, noting that only US dollar bills are accepted for direct QSLs, not English stamps or Euros. For full addresses, the resource directs users to _QRZ.com_, emphasizing that the provided information is offered in good faith. -
A high speed, self discovering, self configuring, fault tolerant, wireless computer network that can run for days from a fully charged car battery with focus on emergency communications -
This online map shows the IARU beacons. If the clock on your PC is accurate enough, it will also show which ones are broadcasting at the moment and on which band. -
Harleys, Astronomy, HAM Radio, and other stuff -
-
This resource presents a placeholder page for the _Tobacco Valley Amateur Radio Club_ (TVARC), signaling the future establishment of an online presence for this amateur radio organization. The page currently displays a "Coming Soon" message, indicating that the club's official website is in development. It serves as a preliminary marker for the club's digital footprint, suggesting an upcoming platform for members and prospective hams. The current state of the page offers no technical details, operational information, or specific club activities. It functions solely as a temporary landing page, prompting site owners to log in for launch and visitors to check back later. The resource does not provide any data on club repeaters, meeting schedules, or special events, nor does it detail any past achievements like **DX contacts** or **contest scores**. -
Serving the Magic Valley of Idaho with emergency communications, VE Testing and activities for all amateur radio operators and those interested in becoming licensed. -
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. -
An Easy Guide to UI-View32 and UISS produced by Mineo Wakita, from installing UI-View32, setting up and configuring software and using the UISS -
The Red River Valley Amateur Radio Club Paris, Lamar County, Texas -
Over 100 distinct RF connector types are available from AIR802, including popular UHF series PL-259 plugs and SO-239 sockets, designed for a wide array of coaxial cable dimensions. The company specializes in producing connectors compatible with common amateur radio cables like RG-8, RG-213, and RG-58, ensuring reliable signal integrity for antenna systems and shack interconnections. Their product line extends to various coaxial cable types and pre-made antenna cable assemblies, offering ready-to-deploy solutions for hams. AIR802 also provides custom cable assemblies and pigtails, catering to specific installation requirements for transceivers, tuners, and amplifiers. These pre-fabricated options simplify station setup, reducing the need for field termination of connectors. Michael Bryant is the contact for inquiries regarding their range of RF components, which are essential for building robust and efficient amateur radio stations. -
-
Custom Designed Photo QSL Cards, Full Color stunning designs, High Quality Printing at competitive Prices. US based QSL designer and printer specialized in custom-designed ham QSL cards. -
eHam reviews of the popular HF Transceiver Drake TR7 -
Employees and retirees of General Motors Corporation -
Noble Enterprises, Heli-coil Helicoil, Helicoil Insert, Helicoil Inserts, Inserts, Cutting Tools, Thread Cutting Tap, Thread Cutting Tools, Machine Tap, -
The Linux operating system is perhaps the only operating system in the world that can boast native and standard support for the AX.25 packet radio protocol utilized by Amateur Radio operators worldwide. This document describes how to install and configure this support. -
Transmitting operations in the 50-54 MHz range offer some unique problems that over the past 50 years have stymied station owners, forcing them to tolerate quiet hours and hostility from family and neighbors attempting to enjoy other electronic services. -
An experimental antenna for HF reception. It consists of a single loop element mounted on the ground. It is stealthy, small, and quiet. EZ-NEC plots and on-air test results are included. -
-
9J2T dx pedition to Zambia 2014 by IDT -
A website dedicated to microwave operations and technical projects by AD6IW -
Besides protection from lightning, this ARRL "All Risk" Ham Radio Equipment Insurance Plan also gives you the protection you need from loss or damage to your amateur station -
_AT Auto_ is an automatic antenna tuner designed for amateur radio enthusiasts seeking efficient and reliable tuning solutions. This device automates the tuning process, allowing operators to focus on communication rather than manual adjustments. The tuner is compatible with a range of transceivers, enhancing its versatility in different shack setups. Its design incorporates advanced circuitry to ensure optimal performance across various bands. The _AT Auto_ tuner is particularly useful for those operating in HF bands, providing seamless transitions between frequencies. Its integration capabilities with other shack automation products make it a valuable component for modern amateur radio stations. The tuner supports multiple modes, including _SSB_ and _CW_, catering to diverse operating preferences. Its robust construction and user-friendly interface contribute to its appeal among both seasoned operators and those new to the hobby. Kessler Engineering's focus on innovation and quality is evident in the _AT Auto_'s design. The tuner is part of a broader product line that includes shack automation solutions, reflecting the company's commitment to enhancing amateur radio operations. Despite the website redesign, the tuner remains a key offering in their product portfolio. -
Candlewood Amateur Radio Association is sponsoring the annual Connecticut QSO Party -
-
-
This is a standard calculation method that can help you while tuning dipole antennas, by adjusting wire lengths. This method can be used also when you need to add lenght to your wires, and can be additionally used to quarter waves vertical antennas -
Icom 706MkIIG Filters, Make a narrow CW filter work in SSB for the digital modes -
The premier flea market for radio, electronics, Computer & communications equipment in Indianapolis -
Manufacturer of low cost RF signal generators and portable measuring instruments. -
The OCFD Off-Center-Fed Dipole Antenna is an excellent multiband antenna that is relatively simple to construct, yet gets quite decent performance. -
The charger described here is intended for charging small 12 Volt lead acid batteries -
Artwork Created in Verve by Michael A. Maynard K4ICY includes some nice amateur radio related paints -
A fand dipole antenna home made for the 7,14,50 MHz. This article descbribes how to homebrew the antenna, hot to setup and some SWR measurements. -
Hot Springs Village AR
