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An article on origin and usage of the Decibel, that has always been a logarithmically based representation of a power ratio

Rick gryder's ham radio page is the page showing equipment and links to sites in amateur radio, as well as my interest in lighthouses and the sea.

28 Dec 05 - 4 Jan 06 Grand Cayman IOTA: NA 016 GL: EK99, Jamaica IOTA: NA097 GL: FK17

Stanley Grixti - 9H1LO is I.A.R.U. Microwave Manager and Vice-Secretary for M.A.R.L

Operating in the Caribbean, the Jamaica Amateur Radio Association (JARA) provides a central hub for amateur radio enthusiasts on the island. The association details its **repeater network**, including IRLP node 7673 and ECHOLINK access, alongside information on band activity and packet radio operations. Members can access specific documents like the JARA Membership Form and the JARA Disaster Plan, while general visitors can review the full JARA Regulations and learn about the club's history. The site features a photo album and outlines various radio activities, including what constitutes a JARA Field Day. It also provides essential resources such as the Reciprocal License Form and Jamaica Amateur Radio Regulations, crucial for visiting operators. The **WINLINK Project** and Radio Voice Procedure are also covered, offering practical guidance for communications. JARA maintains affiliations with international bodies like **IARU Region II**, ARRL, and RSGB, and lists important organizations such as SATERN 14.265, Jamaica Red Cross, and the National Hurricane Center. The website also includes links to other amateur radio clubs across North America, the Caribbean, and Central and South America, fostering regional and international connections.

Eham user reviews for Radio Shack PRO-94 1000 channel Dual Trunking Scanner

Ham Operator since 1960

Outlines the Club de Radio Amateur de Charlevoix (VE2CCR), a regional amateur radio organization serving the Charlevoix area in Quebec, Canada. The resource details the club's objectives, which include promoting amateur radio, fostering technical knowledge among members, and supporting emergency communications. It lists various club activities such as regular meetings, field day participation, and local repeater maintenance. The site provides contact information for prospective members and details on how to join the club, including membership fees and application procedures. Information on the club's repeaters, including frequencies and access tones, is also presented, facilitating local amateur radio operations. The resource serves as a central hub for VE2CCR members and interested individuals seeking to engage with the amateur radio community in Charlevoix.

Fort Knox Amateur Radio Club Kentucky USA

OL5Z - contest station from JN89AR

The Nechako Radio Club was formed in the summer of '93 to provide a common meeting point for the local area amateur radio operators.

About usage of DTMF Dual Tone Multi Frequency in ham radio applications

Scandinavian Young Ladies Radio Amateurs - YL club

The home page of WSJT-X Improved, an enhanced version of WSJT-X, the popular tool for hams interested in digital modes such as FT8 and JT65. The software provides enhancements and improvements to the original WSJT-X program, making it easier and more efficient for ham operators to communicate digitally. Whether you are a beginner or an experienced operator, this download can help enhance your digital communications capabilities. Free downlaod and full description of improved features.

BARA is an ARRL affiliated club in Barry County, Michigan, which is located in the southwestern part of the Lower Peninsula.

Ham radio page from Brazil with many info on amateur radio in portuguese.

Some images received by PY4BL

CB station AP from Lieksa Finland

North Carolina's Largest 2M Repeater Network

Information about st. paul island,shipwrecks, diving, amateur radio, dx, dxing, dxpedition

Effective operation of amateur radio repeaters, particularly in high-density areas, relies on coordinated frequency assignments to prevent interference. This resource from the _Illinois Repeater Association_ (IRA) serves as the official frequency coordination body for the state of Illinois, providing essential information for repeater owners and users. It details coordination policies, guidelines, and application forms for new and existing repeaters, ensuring fair and consistent spectrum utilization. The site also includes a comprehensive band plan, last revised in 2006, and a selective access policy (PL/Squelch Plan) updated in 2015, which are critical for maintaining orderly operations. The IRA website offers various repeater directories, sortable by frequency, city, and region, including a dedicated section for digital systems. These directories are invaluable for hams traveling through Illinois or setting up new repeater projects, helping them identify available frequencies and coordinated systems. The resource also provides meeting minutes, newsletters, and links to other regional repeater councils, demonstrating its role in fostering inter-state coordination. This structured approach to frequency management helps ensure reliable communications and minimizes QRM across the state, supporting thousands of repeater contacts annually.

Station notes, personal informations and some links

A Dutch website dedicated to weather satellite reception with many documents related to antennas, software and techniques on receiving signals from weather satellites.

Garland, Texas RACES/ARES team web site. We are part of the Dallas County RACES council group. Amateur Radio Resource Typing is an important topic. All are welcome to our resources.

The ICOM IC 7600 transceiver as successor of the IC 756 Pro3, resource page with many links and resources to the Icom top line HF transceiver

HF Ham Radio net

28.222mhz transmitting with 2 watts of power

Angel of the North Amateur Radio Club based in Gateshead, Tyne and Wear - Club callsign - MX0GGP

The RemoteTx ham radio remote control system is an economical way to control your amateur radio station through the Internet with a phone, tablet, Mac or PC. There are 3 main parts to the solution. Conveniently operate your station with a smartphone, tablet or laptop anywhere you have Internet access.

Basically, this antenna is a 23-foot wire fed through a 4:1 un-un transformer. This antenna can be easily used in portable operation, for operating all bands from 40-10 meters.

A web page devoted to the handicapped hams of the world.

Hawaii Emergency Amateur Radio Club

The Stu Rockafellow Amateur Radio Society was founded in 1960 and has been affiliated with the ARRL for 45 years.

Online Wifi shop based in Greece

Bird 4314 RF Power Meter Battery Replacement

Amateur radido station KB1HNZ operator Tim Watson, Gorham, Maine.

Entities First Worked from Hong Kong on 50MHz

LA3ZA Unofficial Guide to Elecraft K2 Modifications

DMR in Helena, Montana. Experiments in Digital Amateur Radio Communications

NARL homepage, the namibian amateur radio league

Operating in a Single Operator Two Radios (SO2R) setup, especially with beverage antennas, often exposes the receiving radio's front-end to significant RF energy from the transmitting radio. This resource details a practical, homebrew receiver protection circuit designed to mitigate this risk. The core of the design involves a non-inductive 2W 22 Ohm carbon composition resistor in series with the RX antenna line, followed by two stacks of four fast-switching diodes (e.g., _1N914_) configured in opposite polarizations. This arrangement effectively clamps the incoming voltage to approximately 2.8 V peak-to-peak, safeguarding sensitive receiver input components. The series resistor plays a crucial role by absorbing excess power, preventing the diodes from exceeding their current ratings and potentially failing open, which would leave the receiver unprotected. The author, _N4KG_, measured up to 50 watts of coupled power between 80M slopers on the same tower, highlighting the necessity of such protection. The design is presented as a cost-effective solution to prevent damage to receiver input transformers, with the author noting successful protection of a receiver even after a resistor showed signs of overheating. This simple circuit can be integrated via a transverter plug, offering a robust defense against high RF input.

Modifications for Retevis RT3 / Tytera MD-380 includes Hardware Modifications, Codeplugs, Software / Firmware Modifications.

General station info and Paddle Museum (online display of keys and paddles)

Polish radio station

Associacao de Radioamadores de Amadora-Sintra Portugal

lighthouses and lightships of ireland and northern ireland with arlhs reference numbers for all irish lights

issued by the members of YO2KJI