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Hantavirus
by WILLIAM TALANIAN 08 Mar '25

08 Mar '25

Hantaviirus can kill This week the news of Hollywood actor Gene Hackman and his wife Betsy Arakawa were found deceased in their Santa Fe, New Mexico home. Toxicology and medical examiners reports that Betsy died of the Hantavirus several days before while Hackman died of heart disease. Both deceased persons were found by workers. Those who frequent our repeater sites are cautioned that the Hantavirus exists and may be fatal. The three sites most pronounced are Santa Ynez Peak, La Cumbre Cox Site, and Diablo Peak. The former SBARC La Vigia site was kept clean and all holes sealed. We have been careful not to overly stir up dust as the mentioned sites are the worse. Anyone with pulmonary issues should remain clear of the worst offending sites. Bill Talanian From Wiki Orthohantavirus is a genus of viruses that includes all hantaviruses (family Hantaviridae) that cause disease in humans. Orthohantaviruses, hereafter referred to as hantaviruses, are naturally found primarily in rodents. In general, each hantavirus is carried by one rodent species and each rodent that carries a hantavirus carries one hantavirus species. Hantaviruses in their natural reservoirs usually cause an asymptomatic, persistent infection. In humans, however, hantaviruses cause two diseases: hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS). HFRS is mainly caused by hantaviruses in Africa, Asia, and Europe, called Old World hantaviruses, and HPS is usually caused by hantaviruses in the Americas, called New World hantaviruses. Hantaviruses are transmitted mainly through aerosols and droplets that contain rodent excretions, as well as through contaminated food, bites, and scratches. Environmental factors such as rainfall, temperature, and humidity influence transmission. Human-to-human transmission does not occur. HFRS is marked by kidney disease with kidney swelling, excess protein in urine, and blood in urine. The case fatality rate of HFRS varies from less than 1% to 15% depending on the virus. A mild form of HFRS often called nephropathia epidemica is often caused by Puumala virus and Dobrava-Belgrade virus. For HPS, initial symptoms are flu-like, with fever, headache, and muscle pain, followed by sudden respiratory failure. HPS has a much higher case fatality rate than HFRS, at 30–60%. For both HFRS and HPS, illness is the result of increased vascular permeability, decreased platelet count, and overreaction of the immune system. Individual hantavirus particles (virions) are usually spherical and vary at 70–350 nanometers in diameter. They consist of the viral RNA, which is segmented into three parts and encased in helical nucleocapsids to form three ribonucleoprotein (RNP) complexes. Attached to each RNP is a viral RNA-dependent RNA polymerase (RdRp). RNPs are surrounded by a lipid envelope that has spike proteins emanating from its surface. Each part of the viral genome is single-stranded negative-sense RNA. The segments encode one protein each: RdRp, which performs transcription and replication of the genome, a glycoprotein precursor, which is formed into surface spikes on the envelope, and the N protein, which binds to and protects viral RNA. Some hantaviruses encode on the same segment as the N protein a non-structural protein that inhibits host interferon production. Hantavirus replication begins by attaching to the surface of cells, usually vascular endothelial cells and macrophages. They then enter the cell and form vesicles to be transferred to endosomes and lysosomes. The viral envelope fuses with the membranes of endosomes and lysosomes, which empties the viral RNPs into the host cell's cytoplasm. RdRp then transcribes the viral genome to produce messenger RNA (mRNA) for translation by host ribosomes to produce viral proteins. RdRp also produces copies of the viral genome for progeny viruses. Old World hantavirus virions are constructed in the Golgi apparatus and obtain their envelope from the Golgi apparatus, before being transported to the cell membrane to leave the cell via exocytosis. New World hantavirus virions are constructed near the cell membrane, obtain their envelope from the cell membrane, and leave the cell by budding from its surface. Hantaviruses were first discovered following the Korean War. During the war, HFRS was a common ailment in soldiers stationed near the Hantan river. In 1978 in South Korea, the first hantavirus was isolated, Hantaan virus, and was shown to be responsible for the outbreak during the war. Within a few years, other hantaviruses that cause HFRS were discovered throughout Eurasia. In 1982, the World Health Organization gave HFRS its name, and in 1987, hantaviruses were classified for the first time, and they collectively bear the name of Hantaan virus and the Hantan river. In 1993, an outbreak of HPS occurred in the Four Corners region in the United States, which led to the discovery of pathogenic New World hantaviruses and the second disease caused by hantaviruses. Since then, hantaviruses have been found not just in rodents but also shrews and bats.

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D44ZZI Cape Verde DXpedition
by WARREN MYERS 03 Mar '25

03 Mar '25

Hello Friends, I will be traveling to Cape Verde in May for a Holiday Style DXpedition. I will be partnering with Harald - D44TWO, an experienced DXpeditioner. My call sign for the activity is D44ZZI. And, we hope to be active on most if not all HAM bands and modes. My objective is to practice and learn how to conduct a DXpedition, and of course to enjoy the West African archipelago of Cape Verde. Hope to see you on the air. Warren KN6ZZI D44ZZI

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Dave Matthews Band sound crew - ham radio operators
by Ken Alker 27 Feb '25

27 Feb '25

<https://www.facebook.com/ARRL.org/photos/now-thats-a-mobile-antenna-there-a…>

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Field Day 2025 Email List Invitation
by WARREN MYERS 20 Feb '25

20 Feb '25

Dear SBARC Members and Friends: We have begun planning and communications regarding SBARC’s 2025 Field Day. If you would like to receive Field Day 2025 related email simply click the link below. You will then be prompted to respond to a second email, (to confirm that the email address being added to the distribution is reaching you). The process is fast and simple. The Field Day eMail list will be the primary way that SBARC communicates with those interested in the event (whether or not participating). So please take a minute or two to complete the process today. You may unsubscribe at any time. Best wishes, The SBARC Field Day 2025 Team mailto:fieldday24+subscribe@sbarc.org

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VCF SoCal: Video RETROspective 🎬💾
by Levi C. Maaia 20 Feb '25

20 Feb '25

I spent last weekend at Vintage Computer Festival SoCal—a gathering of retro tech enthusiasts who keep old computers and forgotten technology alive. There were plenty of hams there and it was a great chance to explore rare machines, connect with fellow tinkerers, and dive into the stories behind early computing. I made a short retrospective video capturing some highlights from the event. If you’re curious about the world of vintage computing (or just want to see what I get up to!), check out the video below! https://youtu.be/y2E8ZW3iH9Y?si=WFp54MVjwODr8uW_ LCM Levi C. Maaia, K6LCM www.levimaaia.com

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Unfortunate News About RigExpert
by WARREN MYERS 15 Feb '25

15 Feb '25

RigExpert Office in Kyiv, Ukraine Destroyed ___________________________________________________________________ From W3UR Bernie McClenney, today: I received the following report about the destruction of the Kyiv administrative office. "Today, our administrative office was completely destroyed by a Russian ballistic missile. Despite the severe damage, we are relieved to report the most important - all our team members are safe. Even though this difficult situation, the RigExpert team is committed to restoring operations as soon as possible to continue providing our great products to you. We are working tirelessly to minimize delays and fulfill our commitments. Besides, we are maintaining our usual customer support operations. Please, don't hesitate to get in touch. Our team appreciates your understanding during this challenging time. We will let you know about our progress. Stay strong, and thank you for being with us!"

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Re: [Digital] DMR RadioID update - if your DMR RadioID starts with a 1 then read this
by Dave Schmidt 14 Feb '25

14 Feb '25

Thanks Ken, I just converted mine. Dave On Friday, February 14, 2025, Ken Alker <ka6ken(a)alker.net> wrote: > I've been chasing my tail for a couple of days trying to figure out why I > can key up DMR repeaters but my QSO is not broadcast to other repeaters; it > only stays local. It appears that Brandmeister is no longer routing QSO's > from 7-digital personal radio ID's starting with a "1" (and eventually > 6-digit repeater Radios ID's starting with a "1", so be ware if you run a > repeater)! They say it'll work until 1/1/26, but mine was NOT and changing > my RadioID solved the problem. > > Note that this requires reprogramming of all your radios (and repeaters). > > Read following if you have a RadioID that starts with a "1" (note the Jan > 28th update near bottom): > > <https://news.brandmeister.network/important-message-for-bra > ndmeister-usa-hams-using-a-radio-id-starting-with-1/> > > Ken > ------------------------------ > This email came from the SBARC Digital mailing list. To unsubscribe, send > an email to: digital+unsubscribe(a)sbarc.org > > New members can subscribe by sending an email to: > digital+subscribe(a)sbarc.org > >

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DMR RadioID update - if your DMR RadioID starts with a 1 then read this
by Ken Alker 14 Feb '25

14 Feb '25

I've been chasing my tail for a couple of days trying to figure out why I can key up DMR repeaters but my QSO is not broadcast to other repeaters; it only stays local. It appears that Brandmeister is no longer routing QSO's from 7-digital personal radio ID's starting with a "1" (and eventually 6-digit repeater Radios ID's starting with a "1", so be ware if you run a repeater)! They say it'll work until 1/1/26, but mine was NOT and changing my RadioID solved the problem. Note that this requires reprogramming of all your radios (and repeaters). Read following if you have a RadioID that starts with a "1" (note the Jan 28th update near bottom): <https://news.brandmeister.network/important-message-for-brandmeister-usa-ha…> Ken

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Senators Wicker, Blumenthal Reintroduce Legislation to Protect Amateur Radio Ope...
by WARREN MYERS 10 Feb '25

10 Feb '25

Some promising news. https://www.wicker.senate.gov/2025/2/senators-wicker-blumenthal-reintroduce…

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UAV photos
by WILLIAM TALANIAN 10 Feb '25

10 Feb '25

Needed: Operator with UAV to take Hi-Res photos of roof mounted PV panels atop second story house. House is located on the Left Base approach to runway 15 left north of Cathedral Oaks. UAV 50 ft maximums above ground are approved without notification. Contact Bill Talanian, 805-964-7432 (H)

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