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Modification of the Bill Petlowany, K6NO antenna by N0LX

The Northern Ohio DX Association (NODXA) operates a voice repeater on 147.36 MHz with a +600 kHz shift, utilizing the club callsign W8DXA. The organization provides an award program for contacting its members and offers DXCC and Honor Roll patches to recognize member achievements. NODXA publishes a monthly newsletter containing DX information and meeting minutes, with a recent brochure and membership application dated May 2024. The club actively promotes DXing, allocating a portion of its finances to support DXpeditions, and several members have also financed their own expeditions. The NODXA roster was last updated in June 2015, and a list of supported DXpeditions was revised in June 2024. Tedd Mirgliotta, KB8NW, serves as the club president and is the editor of the OPDX Bulletin, a widely distributed internet and packet cluster resource. Meetings are held on the first Monday of each month at Amici Italian Restaurant & Bar in North Royalton, Ohio, located at 13000 Royalton Road, near the intersection of Route 82 and W.130th Street. The club leadership includes Dennis Stuber, K8LBT, as Vice President; Glenn Williams, AF8C, as Secretary; and Mary Michaelis, N8DMM, as Treasurer.

A conversion of a 80m dipole into a 160m vertical antenna

This database is not a logging program. It is intended to collect information about the HAMs that you know. You just record the call sign and name of a HAM that you meet. Later you can use QRZ to look up the call sign to validate that it matches the name.

ARES vs RACES FAQ: Two Flavors of Amateur Radio Emergency Operation

Presents a comprehensive listing of VHF and UHF repeater systems operating within Ecuador, detailing their operational frequencies and geographical coverage. The resource includes specific entries for locations such as _Guayaquil_, Cuenca, and Manta, alongside their respective frequency pairs. For instance, the Cerro Azul repeater in Guayaquil operates on **6.760- T**, indicating a transmit offset, while the Sta. Elena system utilizes a 26.660 MHz transmit frequency. The data provides essential information for local and visiting amateur radio operators seeking to utilize regional repeater infrastructure. It delineates coverage areas using two-letter provincial abbreviations, such as AZ for Azuay and GY for Guayas, facilitating route planning and mobile operation. This compilation is particularly useful for those engaged in local communications or emergency preparedness within the Ecuadorian amateur radio community, offering a practical guide to available repeater assets.

Article on Helical Antennas in french

An homemade base plate for the hexbeam antenna

The Icom IC-7000 news

Official site of Radio Slovakia International

An homebrew project for a 4 elements yagi monoband antenna for the 10 meters by 9M2MSO

Homemade Jeep Tailgate Antenna Mount for use with a Swing Out Tire Carrier

Amateur radio multi language QSO with translation in several languages. How to conduct a QSO in a foreign language including english

11 metres d.x. group northeast england.

Collection of various Dubus articles in PDF format

This program simplifies the design of the single-ended Class E amplifier. Operation is intuitive and encourages "tuning" and exploration.

Decibels: dB, dBA, dBC, dBV, dBm and dBi? What are they all? How are they related to loudness, to phons and to sones? This page describes and compares them all and gives sound file examples.

A motor tuned magnetic loop antenna that can work from 14 MHz to 30 MHz

A review of the Yaesu FT-857D mobile transceiver by yo3hjv

The main function of the Ugly Balun is to help eliminate rf currents from flowing on the outside of coaxial cable using the principle of choke action.

A PIC Programmer for Windows, support for dsPIC, PIC10F, new PIC12F6xx family, PIC16F9xx, PIC18F

An omnidirectional and horizontally polarized VHF antenna by EA4EOZ

Presents a detailed compilation of **6-meter** voice repeaters operating within the 53-54 MHz segment across Australia (VK) and New Zealand (ZL), providing essential data for local and visiting radio amateurs. Each entry specifies the repeater's output and input frequencies, its assigned callsign (where applicable), the primary service area, current operational status (e.g., operational, under construction, scrapped), and a **Maidenhead grid locator**. The resource also includes the date the repeater was last heard or updated, offering insights into its recent activity. This listing is meticulously maintained by VK2KFJ, who updates entries based on personal observations and confirmed reports from other operators. It serves as a practical reference for hams seeking to utilize the 6-meter band for local communication via repeaters, particularly for those engaged in mobile or portable operations within the specified regions. The data helps operators configure their transceivers correctly for accessing these vital communication hubs. Beyond the repeater details, the page also notes common 6-meter FM voice simplex frequencies, such as the 52.525 MHz international call frequency, and lists historical packet simplex frequencies, though their current operational status is uncertain. This comprehensive approach ensures that operators have a broad overview of 6-meter activity in VK and ZL.

Ham Radio LCD Clock Utility for Macintosh OS X and Windows by GM4JJJ

4CX1500B RF amplifier schematic, working 1.8 MHz to 29.7 MHz

This page presents a curated list of individuals who have made significant contributions across various fields while also being active amateur radio operators. For instance, Dr. Joseph H. Taylor, co-winner of the 1993 Nobel Prize in Physics for the discovery of binary pulsars, is recognized for developing the _WSPR_ and _WSJT_ weak signal mode software. Similarly, Wilson Greatbatch, inventor of the cardiac pacemaker with over **150 patents**, is featured. The resource details the diverse backgrounds of these hams, from Professor Donald H. Menzel, an astrophysicist at Harvard, to Hiram Percy Maxim, often called "The Father of Amateur Radio," who also pioneered in the automobile and aviation industries. King Hussein of Jordan, JY1, is noted for his active participation on 20 meters, engaging with fellow amateurs like Pat Kilroy, WD8LAQ. Other entries include Arthur M. Young, designer of Bell Helicopter's first model, and Marlon Brando, KE6PZH/FO5GJ, known for operating from his private island in French Polynesia. Peggy Sue Gerron-Rackham, K5PSG, gained her license after a special event station, demonstrating the hobby's broad appeal.

Picture and reference links for STL Small tumed loops antennas by DJ3TZ

Delta loop antennas for 40 meters plans and comparison of some models

A PIC based morse code decoder circuit

10.100 - 10.140 MHz 3 Watts output by 7n3wvm

radiomods.co.nz modifications for the Kenwood TS-450

A well-known transverter modified for 10 MHz IF (for Softrock interface use) by DF9CY

A small Z-Match tuner, BLT, Balanced Line Tuner is a simple Z-Match tuner that works from 10-40 meters

Installing a classic G5RV Antenna in Slopinv-V mode by AI4WM

HF DX Web Cluster from JAPAN show spots by JA stations

This article first appeared in the October 1998 issue of Monitoring Times

Articles for amateur radio newsletters aimed at new hams by WD4BIS

A simple coax cable tester built based on the KG0ZZ project.

Easy to build RS232 keying interface for FSK and CW. Works with most popular RTTY software like MMTTY. Also works for with most contest software such as N1MM and Writelog for CW keying. Uses the RS232 port RTS, DTR, or TX data, optically isolated, PC boards available.

This is a one for all antenna tuner with wide range tuning on all the HF bands. The tuner is based on a G3WQW design. DIY project by PD7MAA

Mods for Icom 756 Series including eSSB Mid-Fi Mods for Receiver and Transmitter

This article will help the New Ham to be more at home on repeaters and understand the operation and procedures on Ham Radio Repeaters.

PetitTrack is a satellite tracker for the Sharp Zaurus SL-5x00 Linux PDAs. PetitTrack is based on the keplerian propagator algorithm used in kd2bd's Predict software.

Pneumatic Antenna Deployment Systems

The Rolling Home Ham Radio on the Road

The antenna consists of 6 runs of stranded wires spaced by plastic Hula Hoop spacers made of poly tubing

The HF horizontal loop has been around for many years now. This article includes a YouTube video and discusses the reasons for looking at this antenna, its design, and its installation. There are some on-air comparisons against three regular double bazooka (coax) dipoles and the Par SWL End-Fed antenna.

VK3OT audio recorder qsos.

VHF UHF SHF Toplist including DXCC and EME-Initials

Online calculator and a full documented pictorial guide to build a single sided 8 slot waveguide antenna