1. Forum
  2. FSXNet
  3. FSX_PKT

  • ARLP030 Propagation de K7RA

    From CX2SA@21:5/101 to PROP on Fri Jul 26 16:40:17 2019
    R:190726/1938Z 6972@VA3TOK.#SCON.ON.CAN.NOAM LinBPQ6.0.18
    R:190726/1925Z 28406@VE3UIL.#EON.ON.CAN.NA LinBPQ6.0.18
    R:190726/1905Z @:CX2SA.SAL.URY.SOAM #:10737 [Salto] FBB7.00e $:ARLP030

    From: CX2SA@CX2SA.SAL.URY.SOAM
    To : PROP@ARL


    ZCZC AP30
    QST de W1AW
    Propagation Forecast Bulletin 30 ARLP030
    From Tad Cook, K7RA
    Seattle, WA July 26, 2019
    To all radio amateurs

    SB PROP ARL ARLP030
    ARLP030 Propagation de K7RA

    On Monday July 22 a new sunspot appeared, but just for one day. The
    magnetic signature showed it was from the current cycle 24.

    Average daily solar flux increased insignificantly from 67 to 67.3
    this week.

    Predicted solar flux is 68 for July 26 through August 1, then 67 on
    August 2 through September 8.

    Predicted planetary A index is 8 on July 26 and 27, 5 on July 28
    through August 3, then 8, 15, 15 and 8 on August 4 to 7, 5 on August
    8 to 18, 8 on August 19 and 20, 5 on August 21, 8 on August 22 to
    24, 5 on August 25 to 30, then 8, 15, 15 and 8 on August 31 through
    September 3, and 5 on September 4 to 8.

    Geomagnetic activity forecast for the period July 26 through August
    21, 2019 from F. K. Janda, OK1HH.

    "Geomagnetic field will be:
    Quiet on August 2 and 3, 8, 13 and 14, 21
    Quiet to unsettled on July 26 and 27, 29 to 31, August 1, 9, 15 to 18
    Quiet to active on (July 28,) August 4, 7, (10 to 12,) 19 and 20
    Unsettled to active on August 5 and 6
    Active to disturbed - none

    Solar wind will intensify on August (2 and 3) 7 and 8, (9 to 14)

    Parenthesis means lower probability of activity enhancement."

    End of the current cycle, and beginning of the new one:

    https://www.eurekalert.org/pub_releases/2019-07/ncfa-ot072319.php

    Max White, M0VNG sent this, about the Solar Wind Composition
    Experiment during the Apollo 11 mission:

    https://bit.ly/2y849cJ

    The latest video from Dr. Tamitha Skov, WX6SWW.

    https://youtu.be/Qbqku2_NgDg

    If you would like to make a comment or have a tip for our readers,
    email the author at, k7ra@arrl.net.

    For more information concerning radio propagation, see the ARRL
    Technical Information Service at
    http://arrl.org/propagation-of-rf-signals. For an explanation of
    numbers used in this bulletin, see http://arrl.org/the-sun-the-earth-the-ionosphere.

    An archive of past propagation bulletins is at http://arrl.org/w1aw-bulletins-archive-propagation. More good
    information and tutorials on propagation are at http://k9la.us/.

    Monthly propagation charts between four USA regions and twelve
    overseas locations are at http://arrl.org/propagation.

    Instructions for starting or ending email distribution of ARRL
    bulletins are at http://arrl.org/bulletins.

    Sunspot numbers for July 18 through 24, 2019 were 0, 0, 0, 0, 11, 0,
    and 0, with a mean of 1.6. 10.7 cm flux was 67, 66.7, 67, 67.7,
    67.3, 67.4, and 67.8, with a mean of 67.3. Estimated planetary A
    indices were 3, 4, 3, 8, 8, 6, and 5, with a mean of 5.3. Middle
    latitude A index was 4, 3, 5, 9, 11, 7, and 5, with a mean of 6.3.
    NNNN


    --- Mystic BBS v1.12 A43 (Linux/32)
    * Origin: HAMRADIO telnet lu9dce.dynu.com (21:5/101)