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 2411
Portable Half-Square Antenna, The Squid Pole Wire Antenna Re-visited, 50 MHz 300W Power Amplifier, TX5S Clipperton 2024, TX5S Log Online, Efficient 2-Element Quad Antenna for 2m, Propagation on 630 Meters and 2200 Meters, N1FD Nashua Area Radio Society
(01/01/1970 @ 01:00)
WSJT-X 2.7.0 Release Candidate 4 available
WSJT-X 2.7.0 Release Candidate 4 has been officially made available to the public. This RC version brings improvements primarily aimed at Fox-mode operators and enhancements to the QMAP companion program.
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2410
Field-Tested VP2E Antenna, 3 Band Mono Loop Portable Quad, VHF Repeater with a Raspberry Pi, DIY Tree Antenna Launching: Cheap and Effective, OpenRTX, Wire on the Ground: Portable Radio Success with Grasswire Antenna, LoRa APRS Tracker or Igate on 433Mhz, IARU Region 2 BandPlan,
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2409
Mini Satellite-Antenna Rotator Mk1, Receiving NOAA Weather Satellite Images, Online LInked Dipole Designer, How to use AI to identify Radio signals , LoRa in Amateur Radio, Moxon Mania - Building the Ultimate 4-Band Moxon Antenna, Python Telegram bot for QRZ.com lookups
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2408
Ribbit digital text messaging mode for HF/VHF/UHF , Building a Raspberry Pi Satellite Tracker Interface, Raspberry Pi Pirate Radio, Arduino Digital Transceiver Project, M17 digital radio protocol for data and voice, HamXposition,
(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)
Measured Data For HF Ferrite Chokes
Technical Reference/Components/ToroidsFT-240 toroids measurements. The data was measured using well-calibrated HP instrumentation. All plots have been adjusted to a frequency range of 1-100 MHz on the horizontal axis and a resistance/impedance range of 10-1,000 ohms on the vertical axis. This adjustment facilitates comparison among different materials and aids in determining their suitability for use on the HF ham bands.
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Measured Data For HF Ferrite Chokes
Technical Reference/Components/ToroidsFT-240 toroids measurements. The data was measured using well-calibrated HP instrumentation. All plots have been adjusted to a frequency range of 1-100 MHz on the horizontal axis and a resistance/impedance range of 10-1,000 ohms on the vertical axis. This adjustment facilitates comparison among different materials and aids in determining their suitability for use on the HF ham bands.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Vertical bazooka antenna for the 40m
Antennas/40M/40 meter Vertical AntennasA quarter wave vertical omni-directional antenna for 7 MHz. Formulas for dimensions in feet and meters are provided. Ideal radial angle is between 35° and 45°. Velocity factor (Vf) varies based on coax type.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
A Simple Morse Code Project: The Tiny Keyer
Technical Reference/Arduino/Morse CodeIn his journey to improve Morse code skills, the author developed a straightforward device named the Tiny Keyer using Arduino. Tailored for Morse code enthusiasts and ham radio operators, this project utilized the budget-friendly Arduino ATTiny 85 Kickstarter board. With straightforward setup procedures in the Arduino IDE, the Tiny Keyer's small size and low cost make it accessible for beginners and hobbyist clubs interested in Morse code exploration.
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A Simple Morse Code Project: The Tiny Keyer
Technical Reference/Arduino/Morse CodeIn his journey to improve Morse code skills, the author developed a straightforward device named the Tiny Keyer using Arduino. Tailored for Morse code enthusiasts and ham radio operators, this project utilized the budget-friendly Arduino ATTiny 85 Kickstarter board. With straightforward setup procedures in the Arduino IDE, the Tiny Keyer's small size and low cost make it accessible for beginners and hobbyist clubs interested in Morse code exploration.
(01/01/1970 @ 01:00)
Ham Radio Frequencies
Ham Radio/Band PlansThis guide explores different radio bands that hobbyists use to talk to each other worldwide. It explains how these bands work and what they're used for. From low-frequency to high-frequency bands, each has its own unique features for people who enjoy communicating through radios
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Ham Radio Frequencies
Ham Radio/Band PlansThis guide explores different radio bands that hobbyists use to talk to each other worldwide. It explains how these bands work and what they're used for. From low-frequency to high-frequency bands, each has its own unique features for people who enjoy communicating through radios
(01/01/1970 @ 01:00)
Spectrogram
Software/Spectrum analyzersSpectrogram, a PC-based audio frequency spectrum analyzer available from Visualization Software, aids ham radio enthusiasts in aligning receivers like Elecraft K2. Versions are downloadable, with an intuitive interface and customizable parameters. Tutorials by experts like Tom Hammond and John Grebenkemper offer additional guidance.
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Spectrogram
Software/Spectrum analyzersSpectrogram, a PC-based audio frequency spectrum analyzer available from Visualization Software, aids ham radio enthusiasts in aligning receivers like Elecraft K2. Versions are downloadable, with an intuitive interface and customizable parameters. Tutorials by experts like Tom Hammond and John Grebenkemper offer additional guidance.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Hamstick Experimentation: A Day of Surprising Results
Operating Modes/Portable OperationsIn his POTA activation, WK4DS experimented with radials for hamstick antennas. Despite sun and RF noise challenges, successful connections were made. Surprisingly, tuned radials proved unnecessary, simplifying setup. Hamsticks demonstrated versatility across frequencies. Increased power improved signal quality, sparking his curiosity for further exploration in radio technology.
... / ...
Hamstick Experimentation: A Day of Surprising Results
Operating Modes/Portable OperationsIn his POTA activation, WK4DS experimented with radials for hamstick antennas. Despite sun and RF noise challenges, successful connections were made. Surprisingly, tuned radials proved unnecessary, simplifying setup. Hamsticks demonstrated versatility across frequencies. Increased power improved signal quality, sparking his curiosity for further exploration in radio technology.
(01/01/1970 @ 01:00)
Laatst import : 19/03/2024 @ 08:48