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  1. QCWA Ch 91 Members & Friends of Ch 91....

     Hopefully we’ll see you at our Saturday, Dec 9th holiday party at 1130 at PJ Skidoos* in Fairfax.  We’ll have some cheer, and a grand time socializing.  There is no technical program planned for the meeting. 

     In January, we’ll return to our traditional 3rd Saturday of the month meeting, and the program will discuss the ability of the aging power grid, the largest manmade machine in the world  to absorb more and more renewable energy generation projects.  Our meeting will be at Glory Days, in Fairfax at 1130  (Microcenter Shopping Center). 

     For your info, at our November meeting the membership in attendance forming a quorum for voting purposes reaffirmed the current leadership team for Calendar Year 2024.  We also voted to send a $100 donation to the QCWA Scholarship Fund on behalf of former Ch 91 President, Ray Johnson, K5RJ (SK). 

     Further, the Club Secretary made a motion to send a $100 donation to the Northern Virginia FM Association, for the use of their 146.790 MHz repeater to support our Sunday morning QCWA Ch 91 net.  BTW, all are welcome to join our net on Sundays. 

     Hope to see you on December 9th. 

     Mike, WA8AHZ

    QCWA, Ch 91 President

     *The address for PJ Skidoos is:

    9908 Fairfax Blvd

    Fairfax, VA 22030

  2. Join the Club’s Regular General Meeting starting at 7:00 pm, via Zoom Meeting.  The Zoom link is:    https://us02web.zoom.us/j/83906871573?pwd=V3l1UkZmSGZObGI5YkhLbGFYRzRUZz09   

     Forum – “Amateur Radio RF Exposure” Join the ARRL Learning Network pre-recorded presentation on Amateur Radio RF Exposure, by Dan Brown, W1DAN. Dan is the Eastern Massachusetts ARRL Section Technical Coordinator, and President of the Wellesley Amateur Radio Society.  In May, the FCC issued a new Rule and Order eliminating the decades-long “categorical exclusion” for mandated RF exposure calculations for most Amateur Radio stations.  Effective May, 2021 Amateurs must conduct detailed calculations of RF exposure for both controlled and uncontrolled environments, and have the calculations on file in the shack. After Dan’s presentation, there will be a short discussion.  Time: 7:00-7:30 pm

    Main Program -- “Mitigating Residential Heating, Ventilation and Air Conditioning (HVAC) RFI (Radio Frequency Interference)”  The mandated use of high-efficiency DC motors in HVAC systems poses new challenges for RFI mitigation in the Amateur Radio bands.  In this presentation, VWS member Roger, KM4LHZ along with Steven, W9SAN of the Fort Wayne (IN) Radio Club will explain the physical basis for these phenomena, present brief case studies in RFI mitigation, and discuss some common myths regarding HVAC RFI. Considerations for purchasing a new HVAC system will be given.  Roger experienced this issue first-hand when he recently updated his home HVAC system, and Steve is an electrical engineer at the Regal Beloit Corporation, specializing in RFI issues.  Time: 7:30 – 9:00  pm

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