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Friends News - The DXZone.com
 The DXZone.com Amateur Radio Internet Guide
Latest articles, reviews and links posted to The DXZone.com, an amateur radio, cb radio, scanning and shortwave radio, reference site
Top Amateur Radio Websites - Issue 2344 
Build a W3DZZ Antenna, Field Strength Meter, 6 Meter Beacons - Worldwide, aLog365, E51D North Cook Islands, E51D Log Online, Yaesu FT-818 Review, WRTC 2026 UK,
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2343
Aluminium Push Up Mast , Yaesu FT-710 QST Review, FT-710 Yaesu official web site, Short introduction to D-STAR, ICOM IC-7100 Review , Troubleshooting Data Mode Problems, Fix FT-757GXII blank display
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2342
Three-Element Hex Beam Project, 40m Wire Antennas Comparison, 9:1 Balun and Unun, Building a new lithium battery, Dx-peditions365 App, Tripod Platform and Bi-Quad Antenna Mount, Band Decoder Arduino,
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2341
Performance of 49:1 Ferrite Core Transformers, Variations on a Dipole, Yaesu FTDX101D QST Review, GP Antenna for 1296 MHz, Repair of an FT-1000 MP Mark V , Cloverleaf Antenna, CWvox
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2340
End Fed Antenna for WARC Bands, Open-Folded W8JK Antenna for HF, 8010 Enfed Antenna, Repeaters a guide for Beginners, Yaesu FT-710 Brochure, Yaesu FT-818 Details, 23cm Yagi antenna,
(01/01/1970 @ 01:00)
ICOM IC-R20
IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Arduino QRP Transceiver: DIY Success on HF Bands
Technical Reference/ArduinoThis article introduces an Arduino-based QRP CW Transceiver designed for lower HF bands. The journey begins with the Wotduino, evolving from a keyer to a multi-mode beacon. The development includes a QRP transmitter and culminates in a receiver inspired by Roy Lewallen design. The transceiver, controlled through a control bus features a signal path, modulation, filtering, and adjustable frequency settings. Despite initial testing intentions, successful QSOs on 80 and 40 meters showcase its functional capabilities. ... / ... 
Arduino QRP Transceiver: DIY Success on HF Bands
Technical Reference/ArduinoThis article introduces an Arduino-based QRP CW Transceiver designed for lower HF bands. The journey begins with the Wotduino, evolving from a keyer to a multi-mode beacon. The development includes a QRP transmitter and culminates in a receiver inspired by Roy Lewallen design. The transceiver, controlled through a control bus features a signal path, modulation, filtering, and adjustable frequency settings. Despite initial testing intentions, successful QSOs on 80 and 40 meters showcase its functional capabilities. 
(01/01/1970 @ 01:00)
RF-Quiet Solar PV for Ham Radio
Technical Reference/Radio Frequency InterferenceThis article discusses the potential for solar power systems to coexist harmoniously with amateur radio, challenging the notion that they are inherently incompatible. Drawing from personal experience, the author emphasizes the importance of selecting RF-quiet components, focusing on series-string Sunny Boy grid-tie inverters. The article also highlights considerations for system design and limitations based on roof orientation, shading, and array size. Overall, it presents a valuable perspective on creating a radio-friendly solar PV setup. ... / ...
RF-Quiet Solar PV for Ham Radio
Technical Reference/Radio Frequency InterferenceThis article discusses the potential for solar power systems to coexist harmoniously with amateur radio, challenging the notion that they are inherently incompatible. Drawing from personal experience, the author emphasizes the importance of selecting RF-quiet components, focusing on series-string Sunny Boy grid-tie inverters. The article also highlights considerations for system design and limitations based on roof orientation, shading, and array size. Overall, it presents a valuable perspective on creating a radio-friendly solar PV setup.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
IC705 GoBox: A Portable Windows-Based Solution for All-Digital Modes
Technical Reference/Ham Radio Go KitsThis project details the creation of a portable GoBox housing an IC705, Windows 11 PC, and Bluetooth microphone. The robust setup, enclosed in a weatherproof Hofbauer Explorer Case, ensures stability and functionality for QRP and emergency radio activities. The aluminum-mounted devices minimize RF interference, and a built-in LifePO4 battery powers the 10.1 TFT touch LED monitor, providing approximately 12 hours of use in receive mode. With a focus on grab-and-go versatility, this GoBox stands as an efficient solution for outdoor ham radio operations. ... / ...
IC705 GoBox: A Portable Windows-Based Solution for All-Digital Modes
Technical Reference/Ham Radio Go KitsThis project details the creation of a portable GoBox housing an IC705, Windows 11 PC, and Bluetooth microphone. The robust setup, enclosed in a weatherproof Hofbauer Explorer Case, ensures stability and functionality for QRP and emergency radio activities. The aluminum-mounted devices minimize RF interference, and a built-in LifePO4 battery powers the 10.1 TFT touch LED monitor, providing approximately 12 hours of use in receive mode. With a focus on grab-and-go versatility, this GoBox stands as an efficient solution for outdoor ham radio operations.
(01/01/1970 @ 01:00)
Understanding Impacts of 75-ohm Devices in 50-ohm Systems
Technical Reference/Coax Cables and ConnectorsThis article explores the implications of using 75-ohm devices, common in TV setups, within 50-ohm systems. While mismatched cables and connectors may lead to minimal consequences in receive-only setups, potential losses and reduced isolation in splitters and taps are examined. The article concludes that, for general applications, inexpensive TV-type components can offer reasonable performance with some trade-offs ... / ...
Understanding Impacts of 75-ohm Devices in 50-ohm Systems
Technical Reference/Coax Cables and ConnectorsThis article explores the implications of using 75-ohm devices, common in TV setups, within 50-ohm systems. While mismatched cables and connectors may lead to minimal consequences in receive-only setups, potential losses and reduced isolation in splitters and taps are examined. The article concludes that, for general applications, inexpensive TV-type components can offer reasonable performance with some trade-offs
(01/01/1970 @ 01:00)
Enhancing Frontend Performance with Optimized Band Pass Filters
Technical Reference/FiltersThis article explores the nuanced design challenges of Band Pass Filters (BPF) in radio receivers, balancing low insertion loss, high stop band rejection, and narrow bandwidth. The focus is on the "Series-Trap, Shunt-C" topology, resonator count impact, and meticulous layout design for superior stop band performance across various frequency bands
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Enhancing Icom IC-7300 RX Antenna
Radio Equipment/HF Transceivers/Icom IC-7300Despite the model limitations, such as a single TXRX antenna connector, the author shares a reversible modification involving a coax relay for enhanced functionality, demonstrating the transceiver's adaptability and customization potential.
(01/01/1970 @ 01:00)
Last import : 04/12/2023 @ 01:00
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