The sun is blank–no sunspots. This means solar activity is very low. Credit: SDO/HMI
NO FIREWORKS ON THE 4TH OF JULY: Sunspots vanished almost two weeks ago and, as a result, solar activity is very low. NOAA forecasters say there is no more than a 1% chance of strong flares on the 4th of July. Solar flare alerts: text orvoice
AURORAS AND NOCTILUCENT CLOUDS: Who needs sunspots? Despite a sudden lull in solar activity, July began with a beautiful display of color over Calgary, Alberta. Harlan Thomas photographed the sudden apparition of green auroras and silver noctilucent clouds
Via : http://spaceweather.com/
Antennas
Amazing How to Build a 4:1 Balun – Start to Finish
Fantastic “must-see” entertaining and practical buildathon with Mike M0MSN & Callum showing the complete build of a 4:1 Balun. Read more
DX Commander Part 2 – HF Vertical
Some slight mishaps have been fixed, some radials have been re-established, and it is time to double check this bad boy, with an SWR meter. Will the D... Read more
Does 5 x Copper Rods Help my Antenna Field and Inverted L?
So I grounded the fence to the ground to help my Inverted L on 80m. WIll it make any difference? HUGE project this time – but only 8 minutes for... Read more
What’s Inside a 49:1 Unun?
Terence, 2E0IPK, asks “What makes a 49:1 unun and what does 49:1 actually mean? Read more
Chamleon Antenna’s MPAS Antenna, is it as good as a Dipole?
“Not long ago I purchased the Cha Hybrid-Mini from Chameleon Antennas. This is the 500 watt SSB and 250w for CW version and just a bit larger th... Read more
Hi-Z Antennas – Manufacturers Showcase
K7TJR with Hi-Z Antennas! Read more
Visits Chameleon Antennas Factory
I recently visited the Chameleon Factory in California. I took many photos and will show them in this video to share the experience. Read more
How to make a 2 meter Yagi and get 7 Db for 7 Bucks
In this video I show a article from QST magazine that is from April 1993 on how to build a 2 meter Yagi for 7 bucks. QST ARTICLE Read more
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