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News
The K7RA Solar Update
Both average daily sunspot numbers and solar flux increased this week. Average daily sunspot numbers rose from 118.6 to 133.4, while…
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CW
QCX CW Transceiver Firmware Upgrade Guide with USBAsp for Windows
QCX is a feature-packed, high performance, single-band 5W CW transceiver kit, with WSPR beacon and built-in alignment/test equipment. Available for…
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CW
QCX CW Transceiver Firmware Upgrade Guide with USBAsp for Windows
QCX is a feature-packed, high performance, single-band 5W CW transceiver kit, with WSPR beacon and built-in alignment/test equipment. Available for…
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Frequencies
Shortwave Radio Bands and Frequencies
Understanding the concept of bands If you are new to shortwave radio, then the first thing you need to understand…
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Freq Tables
New Articles
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Antenna Design Calculators
BiQuad / Bowtie (UMTS / 3G / HSUPA / HSDPA / HSPA+…
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High-Voltage DIY Butterfly Capacitor For Magnetic Loop Antennas
A magnetic loop antenna is a compact, efficient antenna that is ideal…
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Shortwave Radio Bands and Frequencies
Understanding the concept of bands If you are new to shortwave radio,…
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QCX CW Transceiver Firmware Upgrade Guide with USBAsp for MacOS
QCX is a feature-packed, high performance, single-band 5W CW transceiver kit, with…
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Communication With Amateur Satellites & ISS
Theoretically, there are hundreds of satellites orbiting the sky with an orbit…
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FM/AM/LW/SW SSB/USB Radio Project with SI4735
It’s possible to make digital radios very easily with SI47xx and SI48xx…
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CW
QCX CW Transceiver Firmware Upgrade Guide with USBAsp for Windows
QCX is a feature-packed, high performance, single-band 5W CW transceiver kit, with WSPR beacon and built-in alignment/test equipment. Available for…
Read More » -
Howto Guide
Understanding the CHIRP Parameters for Baofeng Programming
CHIRP software can add multiple repeater memories (and naming them) much easier and leaves the VFO Mode free for normal…
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News
The K7RA Solar Update
Both average daily sunspot numbers and solar flux increased this week. Average daily sunspot numbers rose from 118.6 to 133.4, while…
Read More » -
News
NASA Call: Ham Radio Operators, We Need Your Help During Solar Eclipses!
Ham Radio operators, we’re calling you! Members of the Ham Radio Science Citizen Investigation (HamSCI) will be making radio contacts during the…
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News
QMX Multi-band Multi-mode Transceiver
QMX: a feature-packed, high performance, 5-BAND 5W, CW and Digi-modes transceiver kit, including embedded SDR, 24-bit 48 ksps USB sound…
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