ARLP027 Propagation de K7RA

Accessed on 08 July 2018, 2215 UTC, Post #615.

Source:

http://www.arrl.org

Propagation Report.

Please scroll down to read the complete article.

Author:  Tad Cook (K7RA).

Here’s the current propagation forecast from Tad Cook (K7RA) and his volunteer observer staff:

SB PROP @ ARL $ARLP027
ARLP027 Propagation de K7RA

ZCZC AP27
QST de W1AW
Propagation Forecast Bulletin 27  ARLP027
From Tad Cook, K7RA
Seattle, WA  July 6, 2018
To all radio amateurs

SB PROP ARL ARLP027
ARLP027 Propagation de K7RA

No sunspots have appeared since June 26. If we use predicted solar
flux as a proxy, flux is expected to be less than 70 until July 8,
this Sunday, so I would not expect sunspot activity to resume
perhaps until July 13 to 23 when solar flux is expected to rise
above 70.

Predicted solar flux is 68 on July 6 and 7, 70 on July 8 to 12, 72
on July 13, 75 on July 14 and 15, 77 on July 16, 80 on July 17 to
19, 77 on July 20 and 21, 73 and 71 on July 22 and 23, 70 on July 24
and 25, 69 on July 26 and 27, 68 on July 28 to August 5, 69 on
August 6, 72 on August 7 to 9, 75 on August 10 and 11, 77 on August
12, 80 on August 13 to 15, 77 on August 16 and 17, then 73 and 71 on
August 18 and 19.

Predicted planetary A index is 10 on July 6, 5 on July 7 to 14, then
15 on July 15, 5 on July 16 to 19, then 15, 8, 10, 18 and 7 on July
20 to 24, 5 on July 25 to 28, 8 on July 29, 5 on July 30 through
August 10, 15 on August 11, 5 on August 12 to 15, then 15, 8, 10 and
18 on August 16 to 19.

Chip Margelli, K7JA had a comment on the coverage of Field Day
conditions last week:

“Hi Tad.

Saw your propagation report re Field Day. Still trying to figure out
which planet that represented.

Conditions on FD were generally awful. The K index rising to 4
Saturday morning really tore up the bands, and blew out the E layer
out west. Neither six nor 10 opened up at all on Saturday, and there
were only a few pop-up paths that emerged on Sunday on ten. On six,
while much of the eastern part of the country had a big band, in
southern California we worked five whole stations in South Dakota.
That was it.

Twenty was “fair,” but it closed early Saturday night. Fifteen was a
huge bust, and 40 was very disturbed, with heavy QSB and east coast
signals generally huddling right at the edge of being audible.
Forty never really took off to the east, causing us to be at least
30% off of our anticipated numbers.

Not a good weekend for prop at all. And very disappointing, because
six had been wide open all week before FD, and here a week after FD
it is again open across the country. Just not the Saturday and
Sunday of FD.

Sigh.

73 de Chip K7JA”

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 June 28 to July 4, 2018 were 0, 0, 0, 0, 0, 0,
and 0, with a mean of 0. 10.7 cm flux was 69.5, 68.6, 68.8, 68.1,
66.6, 68.2, and 67.9, with a mean of 68.2. Estimated planetary A
indices were 5, 4, 4, 3, 3, 4, and 5, with a mean of 4. Estimated
mid-latitude A indices were 5, 3, 3, 4, 4, 5, and 4, with a mean of
4.
NNNN
/EX


Hawaii Island Amateur/Ham Radio Notes:

The 2018 Hawaiian Grid Madness is coming on Sunday, 16 September 2018, from 1300 to 1700 HST.  The Aulani Hui Amateur Repeater Club sponsors this annual “FUN” VHF/UHF Simplex Event “to test your equipment, coverage and operating skills using simplex Fm on 2 meters and 70 cm.”  For details, visit https://gridmadness.blogspot.com.

The final round of free Amateur Radio Technician Class License prep classes begins on 01 November 2018 at the Keaau Community Center.  The VE-administered test will be given on 06 December 2018.  A test fee of $15.00 in exact cash will be collected at the time of the test.  For details, contact Doug Wilson (KH7DQ) at douscelle@aol.com.

Jim Sugg (AH6AE) needs some radio amateurs “to demo how ham radio works at (the ) upcoming emergency preparedness fair in Waimea (Hawaii Island)…on Saturday, August 25, 2018 from 8am-12pm…”  The free, community event will be held at the Mana Christian Ohana Hall near the Kahilu Theatre.  For more information, please call Jim at (808) 747-4500 (mobile).

For the latest Amateur/Ham Radio news and information, please check the blog sidebars and links.  These news feeds are updated daily and weekly.  Thanks for joining us today.

Aloha es 73 de

Russell Roberts (KH6JRM)

Public Information Coordinator

Hawaii County, ARRL Pacific Section

Retired News director of Pacific Radio Group Radio Stations on Hawaii-the Big Island. I have more than 40 years of broadcast experience, including positons at KTUH-FM (UH-Manoa), KPOI-FM (Honolulu). KHLO-AM (Hilo), KKBG-FM (KBIG-FM)(Hilo/Kona), KAPA-FM (Hilo-Kona). Native-FM (Hilo-Kona), and ESPN Hawaii (Hilo-Kona). Former University of Hawaii-Hilo librarian. Retired Air Force Officer. Amateur (Ham) Radio operator since 1977 (currently holds the Amateur Extra Class License from the FCC-KH6JRM).... Can read, write, and speak Russian. Retired on 30 September 2011, but still maintains a Hawaii Island News Blog.

Tagged with: , , ,
Posted in Amateur/Ham Radio, ARRL, Big Island ARRL News, Big Island of Hawaii ARRL info, Club Activities, Hawaii Island Amateur Radio Clubs
Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 157 other subscribers

  • Amateur Radio Newsline Report 2272 for Friday May 14, 2021 May 14, 2021
    - INDIAN HAMS ASSIST WITH SUPPLIES TO COVID PATIENTS - BRAZILIAN AMATEURS SEEK EQUIPMENT TAX EXEMPTION - DEBRIS FROM CHINESE ROCKET SCATTERS IN INDIAN OCEAN - PARKER PROBE EXPLORES SUN'S IMPACT ON VENUS' IONOSPHERE - NEW ZEALAND AMATEURS APPROVED FOR 60M OPERATION - RSGB ADDS RESOURCES FOR RADIATION MEASUREMENTS, OPERATOR EXAMS - 100 WATTS AND […]
    Kevin Trotman
  • Amateur Radio Newsline Report 2271 for Friday May 7, 2021 May 7, 2021
    - FRIEDRICHSHAFEN TRADE SHOW TO BE VIRTUAL - MICROWAVE ATTACKS REPORTED IN WASHINGTON, D.C. - SPECIAL EVENT RECALLS DOOMED US SUBMARINE - WIA PRESSES ACMA for GREATER SPECTRUM ACCESS - 'FENCE-TENNA' PROJECT GETS GOOD RECEPTION - NEW FORMAT UNVEILED FOR YOTA ONLINE - 'RADIO WATCH' STIRS INTEREST AT EARTH DAY EVENT - 'SHORTWAVE RADIOGRAM' MARKS […]
    Kevin Trotman
  • Amateur Radio Newsline Report 2270 for Friday April 30, 2021 April 30, 2021
    - WRTC POSTPONED UNTIL 2023 - SPECIAL RECOGNITION FOR YOUNGEST CONTESTERS - LAUNCH PLANNED FOR SATELLITE MADE OF WOOD - YOUNG RADIO FRIENDS SHARE EVERYTHING, INCLUDING AN HONOR - SMARTPHONES ANSWER THE CALL OF SOLAR STORMS - NETS OF NOTE: HAMS CHECK IN TO SHARE SOME 'CABIN FEVER' - NEWSLINE IN SEARCH OF 2021 YOUNG […]
    Kevin Trotman
  • Radio Frequency Interference Seminar Set for May 19 via Zoom May 14, 2021
    ARRL Laboratory Manager Ed Hare, W1RFI, hold a Radio Frequency Interference (RFI) seminar via Zoom on Wednesday, May 19, at 2000 UTC. His 30-minute slide presentation offers an overview of politics, personalities, and technical issues involved in electromagnetic interference (EMI) control as well as causes and cures. A question-and-answer session will follow the slide presentation. […]
  • Wooden Satellite to Launch by Year’s End May 14, 2021
    The WISA Woodsat project, being sponsored by plywood supplier WISA in an unconventional PR initiative, is poised to place a wooden satellite into orbit by the end of the year. The idea is to test the suitability of treated wood as a low-cost and widely available material for space applications. The IARU posting for Woodsat […]
  • The K7RA Solar Update May 14, 2021
    Tad Cook, K7RA, Seattle, reports: Sunspot activity returned last Friday, May 7, and has held steady since. Average daily sunspot numbers rose from 11.9 to 21.1, and average daily solar flux was up 2.1 points to 74.3 for the reporting week ending May 12.Geomagnetic activity was quiet until Wednesday, May 12, when the planetary A […]
Latest Amateur Radio Posts
Blog Stats
  • 21,312 hits
Post Archives
%%footer%%