If you were listening to HF radio on September 10, 2014, you would have discovered that the bands dropped out completely for several minutes. At 1:45 p.m. EDT (1745 GMT) on Wednesday, a major solar flare disrupted radio communications. Aurora watchers in the northern U.S. should be looking for possible activity both Thursday and Friday […]
Director 975/F Full Wave Driven Element 1005/F Reflector 1030/F Spreaders A2 + B2 = C2 Polarization Fed on the side = Vertical polarization (VHF) Fed on the bottom = Horizontal polarization (HF) Matching Stub (75 Ohms) 984/F x Velocity Factor divided by 4 Calculator Cubical Quad Antenna Calculator (Will include spacing) Note A cubical quad […]
The YAESU FT-991 transceiver is displayed at the Ham Fair Tokyo in 2014.
The Extended Double Zepp (EDZ) Antenna 20 Meters Leg: 44 feet Leg: 44 feet [————————————] [————————————] | | | | | | | | Stub: 9 feet 6 inches (450 Ohm Ladder Line) | | | | | | Coax to transmitter (50 Ohm any length) It’s Time To Install The 20 Meter EDZ […]
Solar cycle 24 began on January 4, 2008 and so far has been the smallest sunspot cycle since 1904. Solar cycle 24 “is on track to be the Solar Cycle with the lowest recorded sunspot activity since accurate records began in 1750.” Solar cycles supposedly have a duration of about 11 years. “In radio communication, […]
Relax. You can run Windows XP forever, even if you have upgraded your OS software, and that includes the Linux crowd. Believe it or not, some programs still run on Windows XP. No problem. You can run Windows XP applications on Windows 7 or Windows 8 PCs or even Linux machines. Is there software that […]
16 Apr
Posted by RD Bentley as Amateur Radio, Geeky Tips, Scanner Listening
If the poorly designed lamp goes bad, all it not lost my friend. Unplug the lamp first. The lampshade has plastic material that will easily peel off if you try. Try using a pair of hand pruners and maybe a pair of needle-nosed pliars. You’ll find some wire in there. Believe it or not, you […]
17 Jan
Posted by RD Bentley as Amateur Radio, Geeky Tips
Microphone Shootout: Electro-Voice RE27 VS Transcontinental Studios Pro The name of this new microphone is what? The Transcontinental Studios Pro Vocal Microphone is sold at Amazon.com and the price is very affordable. Maybe I’m missing something, but I believe this is a dynamic microphone. There is plenty of discussion about this new mic and I […]
10 Jan
Posted by RD Bentley as Amateur Radio, Technology
Remote Transceiver Controlled By Cell Phone If a remote control station is desired and one has the financial resources available, the technology is there to choose from. With a typical handheld device such as the HT, cell phone, laptop, or tablet, a station can be routinely accessed with a touch of a button. A PC […]
Will amateur radio operators in the U.S. get to use the newest frequency band allocated, which is the 600-meter band, also known as the 630 meters? This is a new arena for hams, being in that the band is in the Medium Frequency (MF) region. So how do I make the 600 meter dipole? Ham […]