• 2 The ARRL Letter for August 17, 2017

    From mark lewis@1:3634/12.73 to all on Fri Aug 18 05:41:02 2017
    First Bulgarian Amateur Radio CubeSat to Launch in 2018: The Bulgarian Federation of Radio Amateurs (BFRA) is collaborating with the Space Challenges program and EnduroSat to launch the first Bulgarian Amateur Radio CubeSat -- EnduroSat One. The CubeSat will transmit a CW beacon and 9.6 k AX.25 telemetry on Amateur Radio frequencies. The 1U CubeSat will be launched to the International Space Station (ISS) for later deployment and will serve as an educational activity for the Space Challenges Program and hundreds of students from various universities in Bulgaria, teaching practical satellite communication and promoting the Amateur Radio hobby to young people. EnduroSat One will be manifested on a SpaceX CRS-14 cargo resupply mission to the ISS in February 2018 for later deployment into orbit.

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    The K7RA Solar Update

    Tad Cook, K7RA, Seattle, reports: Several readers pointed out that averages for
    the various indicators we track were not correct last week. The average daily sunspot number was 12.1 instead of 5, average daily solar flux was 73.2 instead
    of 71, the average daily planetary A index was 11.3 instead of 5, and the mid-latitude A index was 6.9, instead of 6.

    The August 10-16 week showed average sunspot numbers at 15.3 and average solar flux at 72. Predicted solar flux is 78 on August 17-24; 68 on August 25-28; 70 on August 29; 72 on August 30-September 8; 70 on September 9; 68 on September 10-24; 70 on September 25, and 72 on September 26-30.

    Predicted planetary A index is 26, 20, 16, and 14 on August 17-20; 12 on August
    21-22; 8 on August 23; 5 on August 24-29; 12, 24, 18, and 14 on August 30-September 2; 5 on September 3-7; 10 on September 8; 8 on September 9-10; 5, 10, 20, 25, 15, 12, 10, 8, and 6 on September 11-19; 5 on September 20-25, and 12, 24, 18, 14, and 5 on September 26-30.

    Sunspot numbers for August 10-16, 2017 were 11, 11, 11, 11, 12, 21, and 30, with a mean of 15.3. The 10.7-centimeter flux was 71, 69.8, 70.3, 68.2, 73, 74.2, and 77.3, with a mean of 72. Estimated planetary A indices were 5, 7, 11,
    7, 5, 4, and 6, with a mean of 6.4. Estimated mid-latitude A indices were 7, 7,
    12, 9, 5, 3, and 5, with a mean of 6.9.

    Monthly propagation charts are available between four US regions and 12 locations around the globe. An archive of past weekly Solar Update bulletins is
    available.

    Send me your reports and observations.

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    Just Ahead in Radiosport

    * August 19 -- Feld Hell Sprint
    * August 19-20 -- SARTG WW RTTY Contest
    * August 19-20 -- ARRL 10 GHz and Up Contest (CW, phone, digital)
    * August 19-20 -- Russian District Award Contest (CW, phone)
    * August 19-20 -- Keyman's Club of Japan Contest (CW)
    * August 19-20 -- North American QSO Party (SSB)
    * August 19-20 -- CVA DX Contest (CW)
    * August 20 -- SARL HF Digital Contest
    * August 20 -- ARRL Rookie Roundup (RTTY)
    * August 21 -- Run for the Bacon QRP Contest (CW)
    * August 21 -- Solar Eclipse QSO Party (CW, phone, digital)
    * August 23 -- SKCC Sprint (CW)

    See the ARRL Contest Calendar for more information. For in-depth reporting on Amateur Radio contesting, subscribe to The ARRL Contest Update via your ARRL member profile e-mail preferences.

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    Upcoming ARRL Section, State, and Division Conventions

    * August 18-20 -- West Virginia State Convention, Weston, West Virginia
    * August 19-20 -- Alabama State Convention, Huntsville, Alabama
    * August 20 -- Kansas State Convention, Salina, Kansas
    * September 1-3 -- North Carolina State Convention, Shelby, North Carolina
    * September 8-10 -- New England Division Convention, Boxboro,
    Massachusetts
    * September 9 -- Virginia Section Convention, Virginia Beach, Virginia
    * September 10 -- New Jersey State Convention, Mullica Hill, New Jersey
    * September 15-16 -- W9DXCC Convention, Schaumburg, Illinois
    * September 15-17 -- Southwestern Division Convention, Torrance,
    California
    * September 15-17 -- ARRL/TAPR Digital Communications Conference, St.
    Louis, Missouri
    * September 22-23 -- W4DXCC/SEDCO Convention, Pigeon Forge, Tennessee
    * September 23 -- Iowa State Convention, Sergeant Bluff, Iowa
    * September 23 -- Washington State Convention, Spokane Valley, Washington
    * September 29-30 - Wisconsin State Convention, Milwaukee, Wisconsin
    * September 30 -- North Dakota State Convention, West Fargo, North Dakota
    * October 6-8 -- Mid-Atlantic States VHF Conference, Bensalem,
    Pennsylvania
    * October 7 -- South Carolina Section Convention, Rock Hill, South
    Carolina
    * October 7-8 -- Great Lakes Division Convention, Brooklyn, Michigan
    * October 13-14 -- Florida State Convention, Melbourne, Florida
    * October 14 -- Pacific Northwest VHF Society Conference, Moses Lake,
    Washington
    * October 20-22 -- Pacific Division Convention, San Ramon, California
    * October 21 -- Wisconsin ARES/RACES Conference, Wisconsin Rapids,
    Wisconsin
    * October 22 -- Connecticut State Convention, Meriden, Connecticut
    * October 28 -- Arizona State Convention, Maricopa, Arizona

    Find conventions and hamfests in your area.

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    ---
    * Origin: (1:3634/12.73)