Unfortunately, the pandemic is not completely behind us and CQ has heard reports from multiple sources of many attendees returning home and testing positive for Covid. We wish them all a full and speedy recovery.
Tuesday, June 21, 2022
|A nasty thunderstorm was not kind to the YOTA
Camp special event station antennas. But they
reported on Twitter that they used their ham
skills to quickly get back on the air. (YOTA
Camp Twitter Feed)
The Commission didn’t buy Frawley’s argument, noting that this was the largest fine it had ever imposed for this type of interference. The case even drew the attention of FCC Chairwoman Jessica Rosenworcel, who said the transmissions “put fire suppression and public safety itself at risk,” noting, “You can’t interfere with public safety communications. Full stop.”
AMSAT, the Radio Amateur Satellite Corporation, introduced a new youth initiative program rudin its Hamvention® forum in May. According to the AMSAT News Service, the program has been in the planning stage for two years and “takes a radically different approach to introducing youth to amateur radio and satellites.”
AMSAT Development VP Frank Karnauskas, N1UW, noted that satellite use is pervasive in virtually everything we do today, from tracking climate change and forecasting the weather to broadcasting and military operations. “Our message to youth,” says Karnauskas, “is ‘Satellites in Space Help Us Live Better Lives Here on Earth,’ ” adding that once young people’s interest is engaged, the program can involve them in “experiences and exercises that then use amateur satellites and amateur radio as their ‘laboratory’ or ‘classroom.’ ”
The initiative is community-based and will work directly with young people, their parents and youth organizations, relying on two websites – KidzSat.com for kids in grades 5-7 and BuzzSat.com for teens in grades 8-12 – which will provide age-appropriate activities and exercises. Participants will also have access to a network of online software-defined radios (SDRs) that will let them receive images and telemetry from active satellites as they pass overhead.
The Quarter Century Wireless Association (QCWA) is supporting the program through a $4,000 grant to help pay the costs of developing the online lessons and network of SDR ground stations.
Astronauts participating in the Amateur Radio on
the International Space Station program (ARISS) will soon have a second interoperable
amateur station available for making contacts with schools and other groups.
According to the AMSAT News Service, a new Kenwood TM-D710GA transceiver – delivered to the space station back in February – was installed in the station’s Russian segment in late May by Cosmonaut Oleg Artemyev, providing a second platform from which crew members may conduct ARISS contacts.
|(Photo by Mariordo/Wikimedia Commons)
RW reports that interference to analog AM signals is so bad in some vehicles that the manufacturers are not including AM radios with their cars, opting only for FM and digital, both of which are more resistant to electrical noise. Such noise would likely be broadbanded enough to seriously degrade analog SSB and CW signals on the HF bands as well. VHF/UHF FM is less likely to be affected.
Apparently, not all EVs are created equal in this regard. One of the AES forum speakers on the subject was Xperi Corp. communications system engineer Pooja Nair, who wrote in a previous RW commentary (<https://tinyurl.com/yckay4fk>) that “EMI can be suppressed in EVs using well-known mitigation techniques such as shielding cables and electric motors, installing filters and carefully locating electrical components within the vehicle. Within receivers, EMI can be limited by isolating and shielding antenna and RF sections, filtering connections and carefully grounding and placing receiver components.” Some manufacturers, Nair writes, do work hard to mitigate EMI while others take the easier path of leaving out the AM radio.
Takeaway for hams who operate HF mobile and are considering an EV purchase: Do your homework. Find out the steps taken by the manufacturer of each vehicle you’re considering to control EMI within the vehicle. Step 1: Does the car include an AM radio?