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Christoph petermann's df9cy six element yagi antenna for six meter band -
United States and Canadian call sign/scanner frequency databases, Worldwide airport frequencies, FIPS codes, Mass Media searches for DXing and more! -
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The rhombic antenna is a diamond-shaped antenna, suspended between 4 masts. -
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Two types of multi-functional Home-brew 6/8Amps - 20 Ampere variable power supplies by ON6MU -
To save a little time from calculating and experime nting when winding toroid cores here a chart of the most commonly used cores -
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Comparing the TH-F7E with the Icom IC-E90 -
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Amateur Radio Station owned by Matt Strelow. The station is designed for competition in the multi-operator multi-transmitter category of high-frequency DX contests. Running with 7 towers 6 rotators, 8 beverage listening antennas, and 4 spotting verticals -
Robert Norgards KL7FM's, notes on upgrading the Heathkit SB-200 -
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A dipole for 2m, 4m, 6m band an hamdwritten note for a homemade vhf antenna that can be tuned across the VHF band -
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The Old Tube Radio Network is dedicated to those real, American-Made, Old Tube CB Radios -
Palm interface for the FT100D by Andre, HB9FBD -
Premium quality, full color, custom QSL cards produced in America's Heartland, competetive rates. Produced by Hams for Hams! -
One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below. -
DK7ZB- Moxons with Aluminium Tubes, plans for moxon antenna for 6 10 12 15 meters -
Solutions to attach antennas to TH-D7 radio using a SMA to BNC adapter that can be used with any Kenwood hand-held radio shipped with SMA connectors. -
This article documents the modification of 2 types of Hewlett Packard switching power supplies to enable their use as power sources for ham radio equipment -
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Design plan of an array of a two element yagis for 80m and a 3 element 40m antenna sharing a single 12 meters long boom by EA5DY -
Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS -
By Alfred T Yerger II WA2EHI, in this PDF file explain how to remote your rig via the internet by using HRD Ham Radio Deluxe and skype -
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List of north america beacons transmitting on vhf and uhf bands compiled by WZ1V -
Making your own 2 metre (146 MHz) 5/8th wave whip antenna -
German antenna manufacturer for VHF UHF antennas, Quad-antennas, yagi-Antenna, LPDA-Antenna, W-Lan Antennas. -
Presents a dynamic, searchable database of shortwave broadcast schedules from around the world, enabling users to locate active stations or plan listening sessions based on scheduled transmission periods and frequencies. The resource details specific station names, such as _Radio Habana Cuba_, _Deutsche Welle_, and _All India Radio_, alongside their operational times and assigned kilohertz frequencies. It also incorporates a distance calculator, which leverages geographical coordinates to estimate propagation paths, though it notes occasional data inaccuracies leading to transmitters appearing in oceanic locations. The platform's development log highlights continuous updates, including the integration of new seasonal schedules like "A24 frequencies" and "B23 schedule," reflecting the fluid nature of shortwave broadcasting. It documents challenges with geolocation services, particularly concerning Google API changes that impacted distance calculations and required user-side browser configuration adjustments for optimal functionality. The site owner, VAXXi, frequently communicates these technical adjustments and database updates, often acknowledging user contributions and donations. Distinctively, the resource provides a historical perspective through its update archives, illustrating the evolution of shortwave listening over more than a decade since its inception in 2011. It also mentions specific events, such as the BBC adding shortwave broadcasts for Ukraine on 5875 kHz and 15735 kHz, demonstrating its responsiveness to global events impacting broadcast schedules. The site's commitment to user feedback is evident in its bug reporting and feature request mechanisms, contributing to its ongoing refinement. -
news and views from the UK about the course of CB in the U.K. and Europe. -
Building a functioning transceiver for less than $10 by AL7FS -
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This program demodulates the telemetry data signal transmitted by the AO-40 satellite (aka Phase III-D) using the PC sound card -
The document provides a detailed guide on modifying an inverted-L antenna to include the 160 meters band. This enhancement allows amateur radio operators to utilize the lower frequency effectively, which is crucial for long-distance communication, especially during the night. The inverted-L design is popular due to its compact size and ease of installation, making it suitable for various environments. By adding top band capabilities, operators can engage in DXing and contesting on 160m, expanding their operational range and opportunities. The guide includes practical tips and considerations for construction, ensuring that the antenna maintains its performance across the extended frequency range. It discusses the necessary adjustments and materials required for the modification, along with potential challenges and solutions. Whether you are a seasoned operator or a beginner, this project can enhance your station's capabilities, allowing for more versatile operations and improved signal quality on the 160m band. -
A quick and simple reference to various communications signals, such 10/11 Codes, Morse Code, Phonetic Alphabet, Police Color/Penal Codes, Q-Signals. -
Description of the 80m antenna used at CN2WW in the ARRL-DX CW 2007 -
A super-fast PSK mode for RTTY Contesting, 100 wpm character transmission speed for contest exchanges and macro transmission versus RTTY at 60 wpm -
SPE Makers of RF power amplifiers like Expert 1K-FA Expert 2K-FA -
Leading supplier of low and high frequency electronic filter design products for the design of wireless telecommunications equipment, semiconductors and more -
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ARRL Laboratory Expanded Test-Result Report ICOM IC-746 Pro -
This free program displays the location of any locator on a map. It calaculates between two Maidenhead locators the distance (km and miles) azimuth longitude latitude Show the location, direction and distance as you move your mouse on a map! Graphical Locator Program, By ON6MU -
This page is dedicated to helping 850 owners keep their radios on the air -
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Free software tests for the Technician, General and Extra class licenses by Shenandoah -
APRS over digimodes including PSK, QPSK and GMSK with digipeating and two way HF internet gateway to the APRS-IS