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A detailed guide presents a simple 2-element quad antenna for 2m, offering ease of construction, portability, and efficient performance across the 144-148 MHz band. The design allows quick disassembly for storage and features adjustable polarization, making it ideal for various applications, including transmitter hunting and SSB operations.

The Pikes Peak Radio Amateur Association (PPRAA) serves as an ARRL Special Service Club, providing a calendar of events and activities for its members and the wider amateur radio community. The resource details upcoming events such as the USS Pueblo Memorial Museum Ships Weekend activations, a Cubical Quad Antenna Workshop, LARCFest, and various hamfests including Dayton Hamvention and Duke City Hamfest. It also lists on-air activities like a FreeDV digital voice mode event on 10 meters, a Black Friday Simplex Event on 2M and 70cm, and a 10m event for Technician class operators, emphasizing SSB privileges from 28.300 to 28.500 MHz. The PPRAA's event schedule includes educational opportunities like a Technician Class and a Soldering Workshop, alongside social gatherings such as the PPRAA Picnic and Car Show. Past event summaries highlight successful activities like the 2024 Megafest Raffle, Winter Field Day, and multiple fox hunts utilizing frequencies like 147.420, 147.480, and 147.540 MHz. The club actively supports POTA activations, exemplified by their AF0S park activation at Cheyenne Mountain State Park, and participates in historical commemorations like the USS Pueblo Memorial operations, demonstrating a broad engagement across various amateur radio facets.

Details the construction of a Copper Cactus Dual-Band Super J-Pole Antenna, providing specific measurements for 1/2-inch copper tubing sections, including a 57-1/2-inch long section and a 19-inch short section, along with a 42-inch piece of 3/16-inch or 1/4-inch soft copper tubing for the matching stub. It covers soldering techniques for copper fittings, drilling an SO-239 panel mount coaxial fitting, and securing feed point connections with stainless steel adjustable band clamps. The resource specifies materials such as Schedule M 1/2-inch copper tubing, various copper fittings, a hardwood dowel or Fiberglas rod for insulation, and #14 stranded copper wire for the feed point. The guide simplifies the J-pole feed point by using an SO-239 fitting with an elongated mounting hole and band clamps, noting an optimal feed point distance of approximately 3 inches above the crossbar for proper impedance matching. It recommends a 4-turn coax choke, 5 inches in diameter, placed within 3 to 4 inches of the feed point for 2-meter operation to mitigate RF on the feedline. The project emphasizes weather sealing with silicon or butyl rubber compound and clear lacquer for durability and appearance.

Recently, at the Ballarat Hamfest, the author acquired an old Marine transceiver for just $10, charmed by its sturdy construction and waterproofing. Made by Findlay Communications in Sydney, this crystal-controlled transceiver had been dormant but was reinvigorated with minor fixes. A manual was sourced, and further repairs were made, including an ingenious crystal oscillator replacement using an Si5351a controlled by an Arduino. The refurbished radio, complete with a fresh coat of paint and added customizations, is now operational for 160m AM and 30m SSB. A successful and cost-effective restoration.

Single-sideband (SSB) radio enhances spectral efficiency but poses challenges with audio intelligibility, particularly in noisy conditions. A microphone audio compressor addresses these issues by dynamically managing the audio signal’s dynamic range. It amplifies quiet sounds and attenuates loud ones, ensuring consistent audio levels for improved clarity. Benefits include increased intelligibility, higher average power, and reduced spurious emissions. While essential for optimal SSB performance, careful parameter adjustment is crucial to balance natural sound quality and effective communication across various operating modes.

The UV-K5 HF Fullband receive firmware version 0.3 introduces enhanced SSB capabilities using the SI4732-A10 chip. Released separately from UV-K5 CEC firmware, it offers improved HF reception, mode changes, frequency fine-tuning, and user modifications. New PCB designs and detailed usage instructions are included.

When new to the 2-meter FM transceiver, securing a quiet frequency for chatter seems straightforward, but it's essential to navigate FCC rules and band plans effectively. Even though frequency allocations are consistent above 50 MHz for Technician licenses, adherence to specific segments within the 2m band—ranging from 144 MHz to 148 MHz—is crucial. This includes respecting designations for different modes like CW, SSB, and FM to prevent interference, particularly with satellites and exotic modes like EME. Understanding and following the structured band plans not only ensures legal compliance but also optimizes frequency use and minimizes disruptions in the amateur radio community.

The K5USS 6 Meter Hentenna Project page on Hamuniverse provides detailed instructions on how to build a 6 meter directional antenna with 3.5 dBd gain. The project is presented with permission from K5USS, Charlie of Richardson, Texas. This directional antenna is a full wave loop on 6 meters, horizontally polarized but mounted vertically, with a 50 ohm impedance, ideal for 6 meter SSB operations. The page is useful for hams looking to construct their own directional antenna for improved performance on the 6 meter band.

A dual insert microphone design for the Icom IC-7300 transceiver utilizes a **Besson BZ2400 M4 Rocking Armature** insert for frequencies from 500 Hz to 3 kHz, exhibiting a rising response of approximately 11 dB. A generic Electret Condenser insert, powered by the transceiver's microphone line, covers the low-frequency range from 100 Hz to 500 Hz. A Low Pass Filter is incorporated after the Electret insert to prevent frequency overlap, and a pre-set potentiometer (VR1) adjusts the low-frequency response, balancing the output of both inserts. The design emphasizes a "Close Talking" arrangement and addresses audio "colorization" by housing the Besson insert in a thick rubber holder with a foam boot, separate from the circuitry, with the Electret insert also wrapped in a foam boot. Critical importance is placed on using the correct BZ2400 M4 insert with 12 holes in its face plate. The frequency response table for the BZ2400 M4 insert shows 0 dB at 500 Hz, rising to +11 dB at 3000 Hz, while the Electret insert with the Low Pass Filter provides 0 dB at 100 Hz, rolling off to -9 dB at 500 Hz and -50 dB at 3000 Hz. This combination ensures a broad, balanced audio spectrum for SSB operation. The project includes a circuit diagram, a comprehensive parts list detailing components like a 1 Henry iron-cored inductor (L1) and various capacitors, and a board layout within the metal tube. The completed unit provides a tailored audio profile for the IC-7300, enhancing transmit audio quality.

Improving callsign recognition and copying skills is fundamental for effective amateur radio operation, particularly in high-stress environments like contesting or DXing. The CW4EVER Callsign Training Platform provides a focused environment for operators to hone these abilities. It offers three distinct training modes: a Typing Trainer for visual recognition, an SSB Trainer for voice callsign practice, and a CW Trainer for Morse code proficiency, allowing users to tailor their practice to specific operational needs. Operators can select training durations of 1, 3, 5, or 10 minutes, providing flexibility for quick drills or extended practice sessions. For CW training, the platform allows granular control over parameters such as CW speed, adjustable up to **80 WPM**, pitch in Hz, and weight in percentage, enabling personalized learning curves. The system stores operator preferences locally and includes server-side anti-cheat protection, stricter callsign validation, and automatic score archives, ensuring fair competition and persistent training history. Recent enhancements include separate saved CW preferences per operator and _MY DXCC_ ranking positions. The platform also tracks global statistics, including total attempts worldwide, unique callsigns encountered, and total training hours logged, offering a broad perspective on user engagement and progress. These features collectively support operators in achieving higher accuracy and speed in callsign reception.

This page details the construction project of the 'Stone', a QRP double conversion superhet SSB transceiver for the 40m band. The project is based on a kit from Tim Walford, G3PCJ, and includes step-by-step instructions for building and testing each stage. The author has added enhancements such as a three digit frequency counter and an automatic gain control. The content is aimed at hams interested in DIY transceiver construction and includes technical details of the build process.

This article investigates SSB signal quality during the CQ WW 2015 SSB contest. It highlights the importance of adhering to the ideal SSB signal profile, the impacts of intermodulation distortion, and the consequences of poor-quality signals. The analysis underscores the need for well-tuned equipment to ensure cleaner, more efficient signals and, consequently, a more enjoyable and spacious experience for contest participants and amateur radio operators.

John Lemay’s (G4ZTR) review of the Yaesu FT-847 offers a practical look at this all-mode transceiver, spanning 160m to 70cm, including 4m. While it falls short in dynamic range and sensitivity, its "shack-in-a-box" design shines for VHF DXing and multi-band use. Lemay shares hands-on tweaks, like calibrating 70cm with beacons and integrating footswitches for SSB and CW. The TX Inhibit feature simplifies sequencing with external gear. Despite minor flaws, the FT-847’s versatility and mod-friendly nature make it a solid pick for amateur radio enthusiasts craving flexibility.

Assessing the ICOM IC-R9000 communications receiver, this review details its operational parameters and user experience for radio enthusiasts. Introduced in 1985, the IC-R9000 covers a broad frequency spectrum from 0.1 MHz to 1999.8 MHz, making it suitable for a wide array of listening activities from medium wave (MW) to VHF/UHF. Key performance metrics include a dynamic range of **102 dB** with the narrow SSB filter, crucial for discerning weak signals in crowded bands, and its substantial physical dimensions of 424 x 150 x 365 mm and 20 kg weight. The receiver's architecture supports various modes, though it notably lacks synchronous detection, a feature often desired for improved AM reception under fading conditions. It incorporates 1000 memory channels and robust scanning capabilities, facilitating efficient monitoring across its extensive frequency range. This analysis provides insights into the IC-R9000's capabilities and limitations, offering a historical perspective on a significant piece of amateur radio and shortwave listening hardware.

This paper presents an 80 meter wire 3-element beam antenna in an inverted-V configuration, designed for limited-height towers. Using EZNEC modeling, the antenna features a central parasitic reflector and two switchable driven elements at each end, enabling NE/SW coverage without moving parts or networks. Element lengths are optimized for SSB (3.8 MHz) and CW (3.5 MHz) operation, with a 50 Ω feed and rope-supported boom. The design delivers high gain, effective takeoff angles, and excellent reception, confirmed in real-world DX contest operation. Its simplicity, reliability, and ease of construction make it ideal for operators seeking performance without complex matching systems.

YaesuFT1000MK V stands out with improved close-spaced SSB transmit performance, reversing a trend seen in other modern radios. Featuring a class-A mode, it offers clean HV finals when kept out of ALC. However, two significant flaws persist: the noise blanker causes receiver IM distortion, and the transmitter lacks wave-shaping on CW, resulting in pronounced keyclicks. Preliminary tests reveal strong keyclicks +1kHz and -1kHz, prompting a combined modification to address both issues.

This blog chronicles over a decade of portable HF contesting from rural Ireland (2008–2019) by Olivier, operating under callsigns EI/ON4EI, EI8GQB, EI1A, and EI7T. Using only green energy from a caravan, he achieved top-tier results in major international contests—including 1st World in the 2018 IARU HF Championship (SSB LP) and multiple 1st-place finishes in CQ WW and CQ WPX SSB Europe. Operating in the demanding Single Operator All Band Low Power and SO2R categories, he deployed up to five antennas across five bands, often in remote or emergency-style conditions. The narrative blends technical detail, fieldcraft, and personal reflection, documenting triumphs, setbacks (including carbon monoxide poisoning), and the logistical challenges of sustainable portable operation—culminating in his decision to transition to team-based contesting and future DXpeditions.

This article discusses a high performance, 7MHz, 5 watt SSB rig, the Daylight Radio, an all-analog radio design from the 1980s that includes a full circuit diagram, IMD NR60 calculations, QER crystal filter, bandpass filter, receiver portion, and more. The author explores the design, components, and functionality of this analog radio for hams interested in vintage or homebrew radio projects.

Details the installation and operation of the DX Engineering TFS Series Transmit Four Square System Phasing Units, specifically models like the DXE-TFS4-160B, DXE-TFS4-80B, and DXE-TFS4-40B. It covers system components, required parts, and a discussion of vertical antenna selection, including a table of suitable DX Engineering Monoband Vertical Antennas. Installation procedures are outlined, encompassing site selection, four square layout, topographical considerations, and noise source mitigation. Specific instructions are provided for mounting the phasing unit, antenna feedline connections using 1/4-wave 75-ohm coaxial cables, and control wire routing. The document also includes details on radial system implementation, with a table of radial wire lengths for 160, 80, 75, and 40 meters, and procedures for tuning the vertical antennas for optimal performance. Operational aspects of the Four Square Control Console are described, including front and rear panel functions, control logic (Table 4), and typical transceiver/amplifier interconnections. The system enables directional control with approximately 5 dB gain over a single vertical element in four directions or an omni-directional pattern, achieving typical front-to-back ratios exceeding 20 dB. Lightning protection and initial system testing are also addressed, along with a 5 kW CW and 10 kW PEP SSB power rating and hot switching lockout feature.

SP9FIH as A52P and SP6CIK as A52CI fm Dochula Bhutan ; 40-6m; SSB CW + digital 19th April till 4th May 2024

2023 September DXPedition Chuuk, F.S.M QRV on September 18-21, 2023 from Weno Island, Chuuk, Federated States of Micronesia. On 160-6m, CW/SSB/RTTY/FM (29MHz)/FT8. V6Z, V63Z, V6AAA, V6WW, V6C, V63FM, V63OS,V63VB,V63SX

13th until 27th March 2024, Kiritimati OC 024, CW and SSB and RTTY and FT8 DX Pedition

This resource details **cooling modifications** for Ameritron AL82, AL1200, and AL1500 HF amplifiers, specifically addressing heat issues encountered during high-duty-cycle digital mode operation. The author, WD4NGB, observed excessive heat in the tank area and band switch on an AL82, attributing it to insufficient exhaust over the 3-500 tubes and a complete lack of exhaust over the tank area. The modifications aim to prevent common failures such as damaged band switches and deformed insulating materials by increasing airflow and exhaust area. The page describes adding five holes to the chassis for enhanced cooling to the band switch and tank area, alongside enlarging the exhaust area over the inner 3-500 tube and the tank area on the amplifier cover, utilizing expanded metal for safety and RF shielding. The original cover featured 26.25 square inches of exhaust; the modified version significantly increases this to 48.5 square inches over the tubes and introduces an additional 15 square inches over the band switch. These changes are intended to resolve heating problems encountered during heavy, 100% duty cycle use in modes like RTTY or long SSB contests, which typically generate substantial heat. The article also discusses upgrading to a higher output fan, such as the G2E085-AA05-21, and modifying tube sockets for improved airflow and reduced back pressure, citing Tom Rauch (W8JI) of CTR Engineering as a source for parts.

How to record the full contest audio into .mp3 file(s). t is possible to record the receiver's audio through the USB sound card in the radio (USB Audio CODEC), but only the transmitted SSB audio can be recorded, unfortunately not the CW.

IOTA: OC-003 activation planned for November 01 – November 15, 2024 Operation modes: SSB, CW, RTTY , FT8, FT4, PSK Bands: 160 – 6m, QO-100

Optimizing on-air audio for SSB, DXing, and contesting operations is addressed through a range of specialized audio processing equipment. The offerings include multi-band equalizers, specifically 5-band, 8-band, 10-band, and 12-band units, some integrated with features such as compressors, echo effects, noise gates, and phase rotation capabilities. These devices are engineered to interface with common amateur radio transceivers, with explicit compatibility noted for models like the Yaesu FT-DX10, FT-DX101D, FT-1000MP, FT-DX5000, Collins HF-380, and Flex 6300, alongside analog S/P meters for Icom rigs. The product line focuses on enhancing microphone audio characteristics, supporting XLR dynamic microphones for improved signal clarity and presence. The manufacturer, DB6QW Electronics, emphasizes direct support and a 100% manufacturer's warranty, reflecting confidence in product quality and operational reliability. This resource details specific audio processing tools designed to refine the transmitted audio signal, providing operators with granular control over their voice characteristics for competitive and casual amateur radio communications.

The HD8G DXpedition will take place in the stunning Galapagos Islands from April 18 to April 26, 2025. This operation will involve 26 dedicated amateur radio operators activating the islands, which are designated as IOTA SA-004. The team aims to make a significant number of contacts, providing an exciting opportunity for DXers and enthusiasts to work this unique location. With a rich history and diverse wildlife, the Galapagos Islands offer a picturesque backdrop for this event. Participants can expect to engage in various modes of operation, including SSB and CW, as the team works to log as many QSOs as possible. The DXpedition is anticipated to generate a high volume of activity, with operators from multiple countries contributing to the effort. This is a prime opportunity for those looking to add a rare entity to their DXCC list or simply enjoy the thrill of working a special event from a remote location.

Presents the S21WD DXpedition to Bangladesh (IOTA **AS-140**) scheduled for 2026, organized by the Next Generation DX Club e.V. It outlines the project's progress, including final hardware and systems testing, and the team's successful arrival and activation from the target location. The resource provides a concise summary of Bangladesh, covering its geography, cultural aspects, and economic landscape. The page includes the Clublog Most Wanted ranking for Bangladesh, categorized by continent and mode, as of January 2026. The DXpedition aims to achieve over 70,000 QSOs across CW, SSB, RTTY, and FT8 modes, with a specific focus on RTTY (targeting over 2,000 QSOs) and **lowband** operations. The team plans a Multi-Single entry in the ARRL CW 2026 contest. QSO data will be uploaded to Clublog and LoTW, with Clublog livestream and daily free LoTW uploads anticipated, contingent on stable internet connectivity. The S21WD callsign corresponds to CQ Zone 22 and ITU Zone 41. Further details include a preliminary bandplan, FT8 operating guidelines using MSHV software, a VOACAP DX Prediction link, and an azimuthal map centered on Bangladesh. QSL services are managed by DJ4MX via Clublog OQRS, offering direct, bureau, and LoTW options, with daily LoTW uploads expected.

Presents detailed expedition charts and statistics for the **XX9W** DXpedition, covering operating time, total QSOs, unique calls, and duplicate QSOs. The resource provides comprehensive band and mode breakdowns, including FT8, SSB, CW, and FM, across 80m, 40m, 30m, 20m, 17m, 15m, 12m, 10m, 6m, 2m, and 70cm. Users can access DXCC statistics by band and mode, daily QSO totals, and multiband QSO statistics. Continent-by-mode and continent-by-band breakdowns are also available, detailing activity from Africa, Asia, Europe, North America, Oceania, and South America. The platform also tracks the expedition's impact on user totals, showing new band, new mode, new band + new mode, new slot, and new DXCC contacts.

Examines the Sangean ATS-505 portable receiver, a unit introduced in March 2000, providing an in-depth analysis of its capabilities. The review details critical specifications such as its 6 Volt DC power requirement, utilizing 4 AA batteries, and its physical dimensions of 128 x 214 x 39 mm, weighing 840 g without power cells. Frequency coverage spans **LW** from 153-279 kHz, **MW** from 520-1710 kHz, **SW** from 1711-29999 kHz, and FM from 87.5-108 MHz, making it a versatile listener for various broadcast types. Key features highlighted include a backlit display for low-light operation, 45 memory presets for quick access to favorite stations, and the inclusion of Single Sideband (SSB) mode, which is crucial for serious shortwave listening and utility monitoring. The review also draws technical comparisons with other Sangean models, specifically the ATS-404 and ATS-909, pointing out differences in band coverage and operational features. This independent assessment offers practical insights into the ATS-505's performance, helping enthusiasts understand its place within the portable receiver market.

V73WW - Marshall Islands (2025) 160-6m CW SSB RTTY FT8 4 stations, QSL via DJ4MX

TX5EU 2026 DXpedition to Raivavae Island, **OC-114**, within the Austral Islands, providing a detailed account of the German/Dutch team's operations. The resource outlines the participation of operators such as DL2AWG Guenter, PA2KW Evert, and DK2AMM Ernoe, who engaged in CW, SSB, RTTY, and various digital modes. It documents the real-world challenges encountered, including significant equipment failures and antenna damage to 80/60m, 30m, and 10m verticals due to adverse storm conditions. The page offers timely news updates on the expedition's progress, noting repairs to a power amplifier's 10/12m bandpass filter, which enabled three stations to utilize amplification. Earlier reports highlighted power failures and the loss of multiple power amplifiers, necessitating one station to operate barefoot FT-8 with 100W. The team's persistent efforts to repair antennas as weather permits are also detailed, reflecting the dynamic nature of remote island operations.

Over 44,000 square kilometers of Scotland's natural beauty provide a unique backdrop for the _GMFF_ award program. Designed for amateur radio operators who thrive on portable operations, this program encourages activators to set up stations in designated flora and fauna areas. Participants engage in _SSB_ and _CW_ modes, making contacts from these scenic locations, which are part of the _WorldWide Flora and Fauna_ network. Activators and chasers alike benefit from the program's structure, which awards points for successful contacts. The _GMFF_ program is part of a larger global initiative, allowing operators to contribute to conservation awareness while enjoying their hobby. With a focus on environmental preservation, the program aligns amateur radio activities with ecological interests, promoting responsible and sustainable operating practices. The program's website provides resources for participants, including maps of designated areas and guidelines for operation. By participating, operators not only enjoy the challenge of portable operation but also support the conservation of natural habitats. The _GMFF_ program thus combines the thrill of amateur radio with a commitment to environmental stewardship.

Presents the RI8KR RRA Island Hoppers DXpedition, detailing its schedule from August 21 to 28, 2026, and its objective to activate four new island groups in the Ob Bay of the Kara Sea. The expedition targets specific Russian River Club (RRC) references: RR-06-66 (Ob River Delta Islands West), RR-06-67 (Ob River Delta Islands North-West), RR-06-68 (Ob River Delta Islands North), and RR-06-69 (Ob River Delta Islands Center/North). Operators Vladimir, RK8A, and Igor, UA3EDQ, will operate on 40, 30, 20, 17, 15, 12, and 10-meter bands using CW, SSB, and potentially Digital modes. Three of these activations contribute to IOTA AS-109, an entity not activated since 2013. The page provides QSL information via RZ3EC (Eugene Shelkanovtsev, P.O. Box 70, Orel 302028) and online platforms including RRAWARD.RU, LoTW, RDAWARD.RU, and CFMRDA.RU. It lists supporters of the expedition, acknowledging contributions from various amateur radio operators. Recent updates confirm the purchase of airplane and boat tickets for the team's travel to Salekhard and Salemal/Panayevsk, indicating active preparation for the August 2026 operation.