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 …
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- COVID-19 Affects Space Station Crew Transition March 30, 2020International Space Station (ISS) Expedition 62 crew is readying its Soyuz MS-15 vehicle for an April 17 departure back to Earth. Expedition 62 members are NASA Flight Engineer Jessica Meir; Flight Engineer Andrew Morgan, KI5AAA, and Commander Oleg Skripochka, RA0LDJ. The Expedition 63 crew members who are to replace them are nearing an April 9 […]
- FCC Grants Temporary Emergency Authority to WISPs Operating in 5.8 GHz Band March 30, 2020
- HamSCI 2020 Workshop Successfully Reworked as a Virtual Event March 27, 2020
- Field Day 2020 — A Time to Adapt March 27, 2020Many individuals and groups organizing events for Field Day 2020 have been contacting ARRL for guidance on how to adapt their planned activities in this unprecedented time of social distancing and uncertainty. “Due to the unique situation presented this year, this can be an opportunity for you, your club, and/or group to try something new,” […]
- The Latest Episode of ARRL Audio News is Now Available March 27, 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.
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