Областной радиоклуб Одесса Четверг, 21.01.2021, 03:44
Приветствую Вас Гость | RSS
Перевести

Текущее время в Одессе
Меню сайта

Категории раздела
Радиолюбительские новости [1337]
Радиолюбительские новости
Клубные новости [89]
Клубные новости
Технические новости [22]
Технические новости
Громадська спілка "Всеукраїнська радіоаматорська ліга" [10]
Громадська спілка "Всеукраїнська радіоаматорська ліга"
В помощь радиолюбителю [3]
Раздел для радиолюбителей начинающих и опытных
H A M -D M R [9]
новости H A M -D M R

Наш опрос
любитель чая или кофе ?

Всего ответов: 38

Статистика

Онлайн всего: 2
Гостей: 2
Пользователей: 0

www.dxzone.com
dxzone.com ham radio guide
VHF Aurora :Status
144 MHz Es in EU :Status
70 MHz Es in EU :Status
50 MHz Es in EU :Status
144 MHz Es in NA :Status
From The DXrobot
Today's MUF & Es :Status
From MMMonVHF
Главная » 2021 » Январь » 9 » ARLP002 Propagation de K7RA
12:22
ARLP002 Propagation de K7RA

SB PROP @ ARL $ARLP002
ARLP002 Propagation de K7RA

ZCZC AP02
QST de W1AW 
Propagation Forecast Bulletin 2 ARLP002
From Tad Cook, K7RA
Seattle, WA January 8, 2021
To all radio amateurs 

SB PROP ARL ARLP002
ARLP002 Propagation de K7RA

Sunspots disappeared after January 2, so the average daily sunspot
number dropped from 27.1 last week to 10 for this reporting week,
December 31 through January 6.

As a result, average daily solar flux declined as well, from 86.4 to
78.6.

Geomagnetic indicators remain quiet, with planetary A index changing
from 6.9 to 5.1, and middle latitude numbers from 5 to 4.

This decline was unexpected, and of course we would rather see more
and more sunspots as Solar Cycle 25 progresses, but this is normal. We
expect much variability in any sunspot cycle.

Predicted solar flux for the next 30 days looks depressed, far
different from the high 80s we saw around Christmas. Solar flux is
expected at 74 on January 8-15, 80 on January 16, 82 on January
17-27, 80 on January 28-31, and 78 on February 1-6. Flux values may
rise to 82 around mid-February.

Planetary A index is predicted at 5 on January 8-9, 8 on January
10-11, 5 on January 12-16, 10 on January 17-20, 5 on January 21-24,
8 on January 25-26, 5 on January 27-31, then 10, 10 and 8 on
February 1-3, and 5 on February 4-5. A index may rise to 10 by
mid-February.

This prediction, prepared by the US Air Force, is updated daily,
usually after 2120 UTC, and can be found at,
ftp://ftp.swpc.noaa.gov/pub/forecasts/45DF/ .

Geomagnetic activity forecast for the period January 8 to February
3, 2021 from OK1HH.

"Geomagnetic field will be,

quiet on: January 10, 12-14, 22, 30-31

quiet to unsettled on: January 11, 23, 27-29, February 1

quiet to active on: January 8, 15-16, 21, 24-26

unsettled to active: January 9, 17, 19-20, February 3

active to disturbed: January 18, February 2

Solar wind will intensify on: (January 8-9, 15-17, 19-20,) 21 (- 22,
(23, 25-26,) February 2-3.

"Parenthesis means lower probability of activity enhancement. The
predictability of changes is lower again, as there are ambiguous and
changing indications. Including rapidly emerging and disappearing
narrow bands of solar coronal holes."

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

For more information concerning radio propagation, see
http://www.arrl.org/propagation and the ARRL Technical Information
Service web page 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/.

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

Sunspot numbers for December 31, 2020 through January 6, 2021 were
25, 23, 22, 0, 0, 0, and 0, with a mean of 10. 10.7 cm flux was
81.2, 80.4, 81.5, 80.4, 77.6, 75.1, and 74.1, with a mean of 78.6.
Estimated planetary A indices were 3, 4, 2, 2, 3, 11, and 11, with a
mean of 5.1. Middle latitude A index was 2, 3, 1, 1, 3, 9, and 9,
with a mean of 4. 
NNNN
/EX
Просмотров: 29 | Добавил: ut2fwf | Рейтинг: 0.0/0
Всего комментариев: 0
avatar
Вход на сайт

Текущее время в Лондоне
Поиск

ВП ГС"ВРЛ" в Одеській Області
  • ВІДОКРЕМЛЕНИЙ ПІДРОЗДІЛ ГРОМАДСЬКОЇ СПІЛКИ "ВСЕУКРАЇНСЬКА РАДІОАМАТОРСЬКА ЛІГА"В ОДЕСЬКІЙ ОБЛАСТІ
  • УКВ ретранслятор ОДЕССА
    Одесса 439,000/431,400 (-7,600) субтон 67.0

    УКВ ретранслятор Сергеевка
    Одесса 439,200/431,600 (-7,600) DMR, D-Star, Fusion, P-25

    Поиск позывных
    QRZCQ.com:
     

    Поиск в RU Callbook'e:  
     

    Поиск в QRZ Callbook'e:
     

    Поиск в базе IK3QAR:
     

    Enter your callsign to see if you have an eQSL waiting!

    Календарь
    «  Январь 2021  »
    ПнВтСрЧтПтСбВс
        123
    45678910
    11121314151617
    18192021222324
    25262728293031

    Архив записей

    Интересные сслки
  • U T 2 F W F
  • Контест-клуб ОДЕССА
  • РАДІОАМАТОРСЬКА АВАРІЙНО-РЯТУВАЛЬНА СЛУЖБА
  • Всеукраїнська радіоаматорська ліга
  • Радиоклуб Одесса В FACEBOOK
  • QRP Клуб Украины
  • Группа Радиоклуб Одесса в FACEBOOK
  • УКРАЇНСЬКИЙ ДЕРЖАВНИЙ ЦЕНТР РАДІОЧАСТОТ
  • Календарь соревнований
  • QRZ.RU Contest Calendar
  • PG7V contestcalendar
  • sk3bg
  • Kenwood TS-590
  • Kenwood TS-480
  • DX Summit
  • DXSCAPE
  • Simon's DX
  • DXWATCH
  • DX FAN
  • DX ZONE
  • Reverse Beacon Network
  • DX ZONE
  • 425 DX Calendar
  • Грозы в реальном времени
  • ADXO by NG3K
  • 432 and Above EME Newsletters by K2UYH
  • DX News
  • Southgate Amateur Radio News
  • DX ZONE
  • DXcoffee
  • DX World
  • OPDX Bulletin
  • The Daily DX
  • Weekly DX Report
  • W1AW Bulletins Archive Propagation
  • SixItalya
  • W1AW Bulletins Archive (DX)
  • QRZ NEWS
  • DARC DX Bulletins
  • SWARL

  • Украина онлайн Site-ok.ua — продвижение сайтов Белый каталог сайтов PopCat.ru Каталог русскоязычных сайтов AddsSites, бесплатная регистрация сайтов. Каталог сайтов Одессы Flag Counter
    Copyright MyCorp © 2021