TWO-BAND DESIGNS TWO-BAND DESIGNS Bands Radiator Ladder Line Lower Resonance Upper Resonance Length (ft) Length (ft) Freq (MHz) SWR Freq (MHz) SWR VF = 0.975/40 144.83 89.50 3.87 1.8 7.25 1.6 30/17 54.75 36.17 10.12 1.8 18.12 1.3 20/17 77.67 76.17 14.13 1.7 18.11 1.6 20/15 51.00 50.67 14.17 1.1 21.27 1.2 20/12 68.00 46.67 14.15 1.7 24.92 1.5 17/12 28.58 46.67 18.11 1.6 24.95 1.5 17/10 …
ARRL Feed
- The Latest Episode of ARRL Audio News is Now Available May 22, 2020Listen to the new episode of ARRL Audio News on your iOS or Android podcast app, or online at http://www.blubrry.com/arrlaudionews/. Audio News is also retransmitted on a number of FM repeaters. Click here and then scroll down to see the list.
- Director, Vice Director Nominations Invited in Five ARRL Divisions May 22, 2020Nominations are being invited in five ARRL Divisions for the volunteer positions of Director and Vice Director, for 3-year terms that start January 1, 2021. Affected Divisions are Atlantic, Dakota, Delta, Great Lakes, and Midwest. A nominee must be at least 21 years old, hold a valid amateur radio licensee, and have been a full […]
- Venerable AO-7 Satellite Continues to Deliver May 22, 2020The nearly 46-year-old AO-7 amateur satellite made a remarkable contact possible on May 4 between Diego Feil, LW2DAF, in Buenos Aires, Argentina (GF05rk), and Tom Ambrose, ZS1TA, in Cape Town, South Africa (JF95fx). The contact spanned 4,329 miles across the South Atlantic, with both stations aiming at only 2 or 3 degrees above the horizon.Both […]
- Federal Judge Okays Retrieval of Titanic Marconi Wireless Equipment May 22, 2020A US federal judge in Virginia has given permission to retrieve the ill-fated RMS Titanic’s Marconi wireless gear, which transmitted distress calls from the sinking ocean liner during its maiden voyage. Judge Rebecca Beach Smith of the US District Court in Norfolk ruled that the radio gear is historically and culturally important and could soon […]
- The K7RA Solar Update May 22, 2020Still no sunspots to report. Spaceweather.com reported on May 20 that the current stretch of days with no sunspots has now reached 18. And with that the 2020 percentage of days with no sunspots has risen to 77%, equal to 2019. Until May 15 that statistic stood at 76%.Average daily solar flux for the week […]
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