GEOMAGNETIC STORM WARNING: NOAA forecasters say there is a 75% chance of geomagnetic storms on March 23rd when a coronal mass ejection (CME) is expected to sideswipe Earth’s magnetic field. Storm levels could reach category G2, which is moderately strong. During G2-class storms, auroras may be seen in northern-tier US states as far south as New York and Idaho.
BIG CRACKLING SUNSPOT: A few days ago, sunspot AR2736 didn’t exist. Now, the rapidly-growing active region (movie) stretches across more than 100,000 km of the solar surface and contains multiple dark cores larger than Earth. Moreover, it has a complicated magnetic field that is crackling with C-classsolar flares. The sunspot is inset in this magnetic map of the sun from NASA’s Solar Dynamics Observatory.
Source:http://spaceweather.com/
Image Source : http://www.solarham.net/
Antenna
XR4: Compact 8 Element 20m/15m/10m/6m Multi-Mono Yagi
XR4 is what you get when you add 6 meter coverage to the great XR3 antenna (see above) with the same single feedline and a scarcely longer 11.5... Read more
Momobeam MB17 10/15/20/40 m – Yagi Antenna
MB17 10/15/20/40 is every contester’s dream quad-band trap-less yagi with compact design, – high power handling, – large bandwidth thanks... Read more
Comet HFJ-350M Portable HF antenna -9 Bands
The Comet FHJ-350M, Portable 9-Band, 1/4 wave base loading telescopic antenna for HF through 6M. Frequency can be changed by means of shorting plug. C... Read more
Corner reflector antenna
A corner reflector antenna is a type of directional antenna used at VHF and UHF frequencies.It was invented by John D. Kraus in 1938.[3][4] It consist... Read more
Review
Langstone Project – SDR Transceiver using an Adalm PlutoSDR
https://www.youtube.com/watch?v=TgAkcmd7ixA Read more
5-MHz Interoperability Channels Designated for Wildfires and Hurricane Sally Response
The Federal Emergency Management Agency (FEMA) has announced that two 60-meter channels have been made available, as necessary, for interoperabil... Read more
ICOM IC 705 Raspberry Pi Setup WITH GPS
ICOM IC 705 Raspberry Pi Setup WITH GPS Read more
Equipment
RGO ONE HF transceiver – PREORDER
This is third production lot.Please fill in your data so we can arrange shipping of your brand new RGO ONE shortwave transceiver right after it is bui... Read more
Northern Florida ARES Requests Clear Frequencies for HF Nets
Northern Florida Section Emergency Coordinator Karl Martin, K4HBN, is requesting that stations not directly involved in the Amateur Radio Emergency Se... Read more
21st Century Transceiver Design: The K4 High Performance Direct Sampling SDR
The Elecraft K4 High Performance Direct Sampling SDR Read more
Manufacturer Showcase with bhi Noise Cancellation Products
https://www.youtube.com/watch?v=nRHnP51IzCE Read more
News
100 Inexpensive Paper Clips – Will It Antenna?
The highly requested paper clip installment of Will It Antenna. Where I try and make ham radio antennas out of common household items. Today, the wors... Read more
FCC Grants ARRL Rules Waiver Request for Fire Emergencies, Hurricanes
The FCC has granted ARRL’s request for a temporary waiver to permit amateur data transmissions at a higher symbol rate than currently permitted by sec... Read more
Hurricane Watch Net Wraps Up Marathon Activation for Two Storms
The Hurricane Watch Net (HWN) just stood down from another extended session — 71 hours of continuous operation — for Hurricane Paulette and Hurricane... Read more
FIRST CUBESAT SATELLITE DEVELOPED BY BRAZILIAN COMPANY FINISHES ENVIRONMENTAL TESTS
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