NOAA weather stations usually have ham radio operators and equipment on board at you local weather station to monitor the "spotter ham radio frequencies" so they can get the severe weather reports out to the public much faster. Many "eyes" on the ground are much better than radar in many c...
I knew I had to do this alone. At one point I called my son and told him that we might have to use plan B, me driving my son’s new Subaru. He was OK with that but I could tell from his voice that he was disappointed. When my son later...
near real-time sounding readings (in MHz) from Boulder CO USA, Athens Greece, Hermanus South Africa, Sondrestrom Greenland, King Salmon Alaska USA, Niue Island, Darwin Australia, Tromso Norway, Ascension Island, Mawson Antarctica, and Jicamarca Peru all plotted on a near real-time sunlit map....
Since my build, I I made a mod in order to give me not two, but three selectable frequencies. I added an octal tube socket to the left side of the cigar box and installed another DPDT toggle switch. The octal socket will accommodate two FT243 crystals so by wiring per my diagram belo...
This amazing little unit can do all amateur HF frequencies, as well as VHF/UHF. So tiny! Antennas: for FM UHF/VHF, a Diamond SRH320A whip, or alternately, a 6′ roll-up 2m J-pole from MFJ; for indoor HF, a WonderWand whip; for outdoor HF, a PAR Endfedz 40/20/10m dipole (...
That part remained true until about ten years ago – but especially five years ago when we moved from our beachfront condo on Sand Key Island near Clearwater Beach, Florida where we had lived for eight years before moving to our current home inPotomac, Maryland– 15 miles from theWhite Hous...
This thing is just outstanding. One of the largest problems with upconversion is good filtering; and this unit has it. The unit injects an almost undetectable amount of noise and has very low insertion loss. The 125MHZ LO is a blessing; pushing the frequencies in to a band that's usually...
On September 11th, the A index jumped to 21 and the next day it went to 35 as a result of a geomagnetic storm caused byCoronal Hole High Speed Streams (CH HSS). Frequencies 20 meters and higher were affected so everyone was crammed on the low bands. ...