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Clicks are most problematic when we try to copy weak signals next to moderately strong signals. How to recognize them, and how to identify clicks problems

New and Used Industrial Generators, specialize in power generation equipment including over 100 new and used engines and generator sets for the industrial, marine, and petroleum industries

APRS related links and resources by KA9VNV

The structure of this dual band VHF UHF antenna is very simple. It consists of two identical square loops, whose sides measure a quarter wave, connected together at the ends. A project by I5NZR

The Pamlico Amateur Radio Club (PARC), founded in 1994 and incorporated as a 501(c)(3) non-profit, provides a community hub for amateur radio operators in the Inner Banks region of North Carolina. Affiliated with the _ARRL_ since 2011, PARC supports local ham radio activities and offers resources for those living or traveling near the Pamlico River. The club maintains an active presence, participating in events like Field Day and offering various operating opportunities. Members engage in diverse aspects of the hobby, from DXing to emergency communications, fostering skill development and camaraderie. The club's focus extends to public service, providing communication support when needed within its operational area. PARC's commitment to the amateur radio community is evident through its long-standing presence and continuous engagement, reflecting over **30 years** of service since its establishment.

DXpedition to Kiritimati (Christmas Island) 28 September to 26 October 2011

How to use the hacked firmware on the MD-380. Tools for working with codeplugs and firmware of the Tytera MD380,

Read all the key details about Vacuum Tubes or Thermionic Valves that provided the foundations for today's electronics technology.

A Primer On Mics For Ham Radio. Difference between dynamic and condenser microphones, microphone plugs and differences in kind of microphones available on the market

Communications solutions for Business, Utility and Industrial applications including data phones wireless RF

A ham radio blog primarily focused on newbies and those interested in the hobby. Covers a wide area of subjects that might be of interest to Amateur Radio operators, and material that can be used to study for the Amateur Radio tests.

PSK Reporter,is a powerful tool for monitoring your FT8, JT65 or PSK signals around the world. But, even if you are not transmitting on any of these modes it can still be a great propagation tool for determining which bands are open and to where in the world signals from your area are being heard.

An attempt to build a 2m antenna. Consist of a 4 element yagi antenna for SOTA activities

A rotary dipole antenna for 30 meters band. Each arm is about 12.5 ft and is constructed from telescoping fibreglass flag/fishing poles and short lengths of aluminium tubing. Two short lengths of glass-fibre rod were used to insulate the arms from the supporting hardware.

A detailed review of the Icom IC-R75 30 kHz -6 0 MHz Receiver first introduced in 1999

Dipole antennas are some of the simplest antennas to build in addition to being very efficient and solid performers. I wanted to make a simple dipole antenna for QRP portable operation that could be used on multiple bands.

Greek Radio Amateur Station from Thessaloniki North Greece

An 20 30 40 meters trapped dipole antenna plan for sota and portable operations.

Almaty Amateur Radio League (ARL) is organizing activation of special amateur radio stations including UN2011G and 8 stations with UP2011 prefix.

A homemade j-pole antenna for six meters band, designed to work on local repeaters, and working on the 52-53 MHz. Includes a list of needed materials and detailed description on assembling the copper tubes used to build this antenna.

Largest range of Electronic Kits and Components for the Radio Experimenter in Australia

Navarro, Freestone, Limestone, Leon Amateur Radio Club aka The Navarro Amateur Radio Club

This article aims to help promote the proper configuration for having a clean signal on the waterfall to avoid interference to other users and also to vastly increase the effectiveness of your signal.

This is a Solid State Amplifier Project. It uses 4 MRF150 MosFet Power Transistors. The Power Supply Voltage is 50 VDC at 21.5 Amp. The max power available is 1,075 Watts. The Efficiency is about 65% +/- and runs Class AB Solid State.

VLF Time Signal Stations, Station List Compiled by William Hepburn, LWCA

JA8BMK will operate from laos as XW8BM in holiday style operation on 160-10m

Maual of the Ameritron ALS-600 power amplifier

This channel is all about radio listening and dxing. I will be covering frequency bands like longwave, AM/MW and shortwave. I'm embarking on my renew interest in this hobby since my childhood.

Electronic components online shop based in Italy

Heil Sound PR-35 vs Heil Sound PR-781 vs Electro Voice Blue Cardinal by K4QKY

DXpedition to the island of Niue (OC-040) 16th May 2009 until 20th June 2009

Antennas for the 1296 MHz based on the construction plans of some Yagis 35 elements by DL6WU, F9FT, DJ9YW. These antennas features a boom of about 3 m and gives a gain of about 17.8 dBd

Anatech Electronics manufactures RF filters for communication systems, Military and commercial, as well as RF filters for Wireless applications. Products include, Band pass filters, Duplexers, Low pass, high pass and bandstop filters. Additional products such as RF cable assembly also available.

The complete software suite to Edit, Analyze, Generate Statistics, View multiple logs simultaneously, Map QSOs, Import and Export to Cabrillo or ADIF files. The Contest Log Analyzer has been developed as a complete database management application, where you can create separate Databases, containing several Logs, a convenient way to save, in one place only, all your log files that accumulate over the years. It runs on Mac and Windows, and it is a commercial product.

A numbers station, also known as a one-way voice link (OWVL), is a special type of unusual radio broadcast, generally on the Short Wave (SW) radio bands

The Metro Detroit area's largest Amateur Radio club presents it's annual Hamfest. Prizes, ARRL reps, DXCC Card checker, VE Exams, Chef Paul's Café, test bench, Vendors galore..

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.

Sri Lanka 4S7 March 2014

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

RF Feedline (Coax and Ladder-Line) Loss and ERP Calculators made with Javascript. This complex feddline loss calculator has already several line types paramenters for most common coaxial cables from Belden, Time LMR, Wireman and other common products. Result will give Matches loss, SWR loss, dB and Watts power loss.

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

Exaustive review of the self-contained, top-performance HF/6m transceiver Icom IC-7700

The J Pole antenna is a good omnidirectional antenna that can be used for portable or fixed station usage. It does not need a ground, and neither complex feed systems. It can be homemade with simple material and in several ways.Article in Italian

Northern Connectors offers over 30 years of experience distributing specialized electro-mechanical connectors and related components, primarily serving industrial environments. The company partners with manufacturers such as _Binder_, _Hummel_, and _Mencom_, providing access to a broad range of connectivity solutions including circular connectors, heavy-duty connectors, and sensor cables. Their product lines are designed to address demanding technical requirements in various sectors, ensuring robust and reliable connections for critical systems. The resource details specific product categories like M5, M8, M12, M16, M23, and M40 connectors, alongside power and data transmission solutions. It emphasizes the availability of custom cable assemblies and overmolded solutions, tailored to unique client specifications. The site also highlights their technical support capabilities, assisting customers in selecting appropriate components for complex applications. Northern Connectors maintains a significant stockholding in the UK, facilitating prompt delivery of essential components. They focus on providing solutions that meet stringent industry standards for performance and durability.

DC filters from radius power are specifically optimized for applications with DC supply like e.g. photovoltaic inverters. Radius Power provides total power solutions, EMI filters solutions from design to manufacturing, Three Phase, Single Phase, Power Line, IEC inlet, Power entry modules Filters.

Offers a range of high-performance RF interconnect solutions, addressing the critical need for reliable signal integrity across diverse radio frequency applications. Their product line includes custom cable assemblies, various **RF connectors** (such as SMA), adapters, and terminators, designed to meet stringent specifications from DC up to 40 GHz. These components are essential for maintaining low insertion loss and excellent VSWR in demanding environments, from test benches to operational communication systems. The company specializes in providing tailored solutions for both commercial and government sectors, emphasizing precision manufacturing in Warner Robins, Georgia. Their offerings are crucial for engineers and operators requiring specific lengths, connector types, and performance characteristics for their radio equipment and test setups. Ensuring robust connections and protection against transient voltage events, their **surge protectors** are integrated into systems to safeguard sensitive electronics from damage, a common concern in outdoor or high-power installations.

Schematic drawing and instructions for the construction of a simple portable dipole for use in low power and portable operations

Adapting a common PC earphone with microphone to connect to a transceiver via a homemade pre-amplifier, using a simple chip with aprox 10 db gain. Includes a schematic diagram

While there are quite a few standalone Morse Code or CW decoders out there, I wanted to tackle the problem myself and end up with both a great Arduino learning project and a decent portable decoder for when I'm out in the field operating QRP

Online antenna calculator for homemade double biquad antenna for UMTS 3G 4G WiMAX WiFi frequencies. Article includes also a simple biquad antenna for 4g