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ALS-600S review, an abbreviated version of this review first appeared in the March 2005 issue of QST. See QST for lab test results. -
Intermittent fluctuations of SWR readings with MFJ 259B antenna analyzer. -
The VersaBeacon is a frequency agile, modulation agile RF source using a DDS chip and minimal support circuitry. It covers a frequency span of 1MHz to 150MHz in 1 Hz steps and provides a variety of modulations -
W3HH wide-band wire antenna Article in French. The W3HH antenna, also known as the Terminated Folded Dipole (T2FD), is a compact, broadband antenna for amateur radio. It operates at an angle of 20 to 40 degrees and covers frequencies from 3 to 30 MHz. The antenna features a total length of one-third of the wavelength at its lowest frequency and is fed using a 1:4 BALUN transformer for impedance matching. A termination resistor around 390 Ω optimizes performance, making it suitable for various amateur radio applications while being easy to construct and install. -
IK2PII describe here a simple direct conversion receiver, thinked for QRSS and DFCW communications, as companion of ARGO or SPECTRAN programs. -
Facilitates logging of amateur radio contacts directly within a web browser, enabling seamless operation across various devices including Windows, macOS, Linux, iOS, and Android. This web-based application stores all log data securely in the cloud, providing accessibility from any internet-connected location. It supports importing existing log data via CSV files, with future plans for _ADIF_ file import, and offers a robust QSL card generation feature, producing print-ready PDF files in standard 148mm x 100mm dimensions. The platform integrates with Japanese government databases to automatically populate callsign-related information such as station location and license issue dates, streamlining data entry. It also assists with JCC/JCG searches for accurate QTH logging. The service leverages SSL encryption for all communications and benefits from security oversight by certified information security professionals. Users can register using email/password or existing Facebook/Google accounts, and the beta version is currently available for free. The system has processed over **5,297,881** logs, with **28,369** logs recorded in the past 24 hours. -
Aggregating real-time contest scores, this online scoreboard serves as a central hub for participants and spectators to monitor live progress during amateur radio competitions. It directly interfaces with widely used contest logging programs, collecting score data as operators make contacts. The platform then processes and displays these scores on dedicated contest pages, offering an immediate overview of standings. Supporting a diverse range of **DX contests**, the system accommodates various operating modes and rulesets. It facilitates score tracking for events like the YB DX RTTY, RSGB Commonwealth (BERU), EA PSK63, and the South America 10 Meter contest, among others. This functionality allows contesters to gauge their performance against competitors instantaneously, fostering dynamic participation. The scoreboard's integration with multiple contest log software applications ensures broad compatibility, making it accessible to a significant portion of the contesting community. It provides a crucial service by centralizing score visibility, enhancing the competitive experience for **amateur radio operators** worldwide. -
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NRAL at Jodrell Bank are a part of the University of Manchester's Department of Physics and Astronomy. The Laboratories are home to the Lovell Telescope and the MERLIN & VLBI National Facility which is operated by the University on behalf of PPARC. -
Comprehensive list of links related to Amateur Radio, Electronics, and other fn stuff. -
L50W-Special callsign for the 50?anniversary of LU1WP-Radio Club Trelew -
DTMF Electronics Manufacturer offers Decoding, Display, Signalling, Data Logging, Remote Monitoring and Control products and design. -
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This RF probe circuit allows RF to be measured in the presence of DC -
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For amateur radio operators focused on **county hunting** awards, WD8LQB CountyLog offers a specialized logging solution for Windows. This software facilitates the logging of contacts specifically by county, a critical feature for those pursuing awards like the USA Counties Award. It includes functionality to export log data in **ADIF** format, ensuring compatibility with other logging programs and award submission systems. The program also provides access to the "Who's on the Air Database," a valuable resource for identifying active stations and planning county-specific operations. WD8LQB CountyLog is available in both a free limited version and a commercial version, allowing operators to choose based on their operational needs and budget. Its design prioritizes ease of use for county-focused logging, streamlining the process of recording contacts and managing the necessary data for award applications. The software's ability to integrate with external databases enhances its utility for real-time operational planning and post-contact verification. -
Yaesu FTDX10 vs. ICOM IC-7300 Comparison Chart and review of reception performances -
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C Beagle Store Military Army RAF Navy Radio Surplus and Collectables. -
D.I.C. Diploma Isole Campane from Italy -
N1HFX project to improve PL tone encoder providing a more stable frequency -
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This application allows Ham Radio Operator to browse and search his LoTW QSL confirmations on his handheld device, and receive notifications when new QSL confirmations appear on Logbook of the World. -
This article is about a 4 element yagi VHF antenna designed to be easy to be assembled and suited for portable operations -
Corona & Norco in Southern California -
Measuring antenna current with and RF Ammeter -
The Belarussian Federation of Radioamateurs and Radiosportsmen (BFRR), the member society of International Amateur Radio Union (IARU). HQ is based in Minsk city, Belarus -
Vasantha VU2VWN VFO controlled 40m Tansmitter schematics -
Also known as 4L9VB DN1MQP DL0TU DB0JT/B DQ2006C -
KC5M frequency measurement with yaesu ft-920 -
iota mapping project - a mapping resource for the IOTA (Islands On The Air) award program -
QJackRcd is a simple stereo recorder for Jack with few features as silence processing for automatic pause, file splitting, background file post-processing. -
A small (FT-817) I.F. radio driving a 100w transverter with a 1db nf front end. -
Listen to Cleveland Police Dispatch and Metro Housing Authority via the Live Audio Feed Web Player -
Since 1956, E-Z-Hook has been manufacturing electronic test accessories used for test and measurement purposes throughout multiple industries. Test probes, multimeters, coax cables, adapters -
SPIDERBEAM.US is the exclusive distributor of Spiderbeam antennas, and online shop for USA & CANADA -
Design for a quarter wave vertical antenna, for the top band in use at V31YN -
A two way morse code practice set by VK3YE -
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A page dedicated to the Morse Code contact procedure -
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Review of the LDG AT600 Pro antenna tuner by AE5X -
The official OT2L contest site, with station and operator info and daily updates! check it out... -
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Search the VP6D on-line log dxpedition to Ducie Island with DXA real time QSO dashboard. -
Fall River Amateur Radio Club -
Design a 50MHz long-yagi antenna by PA3FGA -
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The South Mountain Repeater Association (SMRA) is a 501(c)(3) non-profit group of amateur radio operators dedicated to community service and emergency communications within Cumberland County and the surrounding area in Central Pennsylvania.
