SB PROP @ ARL $ARLP021
ARLP021 Propagation de K7RA
ZCZC AP21
QST de W1AW
Propagation Forecast Bulletin 21 ARLP021
From Tad Cook, K7RA
Seattle, WA May 25, 2018
To all radio amateurs
SB PROP ARL ARLP021
ARLP021 Propagation de K7RA
Sunspot activity resumed this week, after no sunspots for seven
consecutive days. Average daily sunspot number was 7.7, rising from
6.4 in the previous reporting week. Average daily solar flux was
70.1, changed little from 70.2 last week.
According to Spaceweather.com, in 2018 56% of days so far have been
spotless.
Currently sunspot group 2710 and 2711 are active (2711 is growing),
and 2712 is about to emerge beyond the horizon. On May 23 50
one-millionths of the visible solar surface was covered by sunspots.
April 24 and 25 was the last time this level of activity was seen.
On April 21 and 22 the sunspot area numbers were 120 and 130.
Ave
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SB DX @ ARL $ARLD022
ARLD022 DX news
ZCZC AE22
QST de W1AW
DX Bulletin 22 ARLD022
From ARRL Headquarters
Newington CT May 24, 2018
To all radio amateurs
SB DX ARL ARLD022
ARLD022 DX news
This week's bulletin was made possible with information provided by
HA0HW, CS5CRE, SV2CLJ, The Daily DX, the OPDX Bulletin, 425 DX News,
DXNL, Contest Corral from QST and the ARRL Contest Calendar and
WA7BNM web sites. Thanks to all.
TUNISIA, 3V. Ash, KF5EYY will be QRV as 3V8SS in the CQ World Wide
WPX CW contest as a Single Op entry. QSL via LX1NO.
AZERBAIJAN, 4K. Alim, 4K6FO will be a Single Op/All Band/Low Power
entry in the CQ World Wide WPX CW contest. QSL via DC9RI.
GEORGIA, 4L. Mamuka, 4L2M will be QRV in the CQ World Wide WPX CW
contest as a Single Op/Single Band entry on 160 meters. QSL via
EA7FTR.
MALTA, 9H. Thomas, SV2CLJ is QRV as 9H3SV until May 27. Activity
is
... Читать дальше »
To realize this Bullettin Sixitalia use news (except when clearly indicate) extract by (in alphabetic order): 425dxn, 50 MHz DX News by OZ6OM, ARRL DX bullettin, Dxcoffe, DXNL, www.dx-world.net, ICPO, MMMonVHF, OPDX, www.rudius.net & 70mhz.org.
Геомагнитные бури и суббури - это природные явления, такие же как ураганы, наводнения и пр. Сильные бури вызывают перебои в радиокоммуникациях, вызывают торможение космических аппаратов на низких орбитах и т.д. Сильные суббури могут наводить помехи на радиосистемы и электрические сети в полярных районах. Постараемся определить критерий того, насколько полезна имеющаяся информация для любительской радиосвязи, сильно не вдаваясь в термины и формулы. Т.е. куда посмотреть и как оценить степень влияния на прохождение в КВ диапазонах.
Обычно геомагнитная активность оценивается по данным солнечного ветра с применением различных моделей геомагнитных индексов Kp, Dst, AE.
===========================
*** 4 2 5 D X N E W S ***
**** DX INFORMATION ****
===========================
Edited by I1JQJ & IK1ADH
Direttore Responsabile I2VGW
6O - Baldur, DJ6SI is now active as 6O0X (reissued callsign) from
Hargeisa, Somalia until 6 June. QSL direct to Baldur Drobnica,
Zedernweg 6, 50127 Bergheim, Germany. [TNX The Daily DX]
6Y - Armin, DK9PY will be active again as 6Y6N from Jamaica (NA-097)
from 23 May to 2 June. He will operate CW only on 160-10 metres,
and will participate in the CQ WW WPX CW Contest.
... Читать дальше »
Понедельник, 06.05.2024, 06:46
SB PROP @ ARL $ARLP021
ARLP021 Propagation de K7RA
ZCZC AP21
QST de W1AW
Propagation Forecast Bulletin 21 ARLP021
From Tad Cook, K7RA
Seattle, WA May 25, 2018
To all radio amateurs
SB PROP ARL ARLP021
ARLP021 Propagation de K7RA
Sunspot activity resumed this week, after no sunspots for seven
consecutive days. Average daily sunspot number was 7.7, rising from
6.4 in the previous reporting week. Average daily solar flux was
70.1, changed little from 70.2 last week.
According to Spaceweather.com, in 2018 56% of days so far have been
spotless.
Currently sunspot group 2710 and 2711 are active (2711 is growing),
and 2712 is about to emerge beyond the horizon. On May 23 50
one-millionths of the visible solar surface was covered by sunspots.
April 24 and 25 was the last time this level of activity was seen.
On April 21 and 22 the sunspot area numbers were 120 and 130.
Ave
