D2TI Tigres Island. From DXNews.com

Radio Amateurs International Team will be active from Tigres Island, IOTA AF - 108, early 2018 as D2TI.

from dxnews http://ift.tt/2rA8Uaq
via IFTTT

Today’s Sun, seen through a filter of...

Today’s Sun, seen through a filter of ‘visible’ light (remember: NEVER look directly at the Sun!), as viewed by the Solar Dynamics Observatory (SDO), by the Helioseismic Magnetic Imager (HMI). This image is known as a 'continuum’ image; a continuum image is formed by filtering portions of the visible light part of the spectrum. The SDO HMI is designed to study oscillations and the magnetic field at the solar surface, or photosphere.

The continuum images allow us to track the evolution of sunspots. These images are important as they allow us to better understand the dynamic nature of the solar atmosphere.

View live data and images at http://SunSpotWatch.com

We’re on Facebook: http://NW7US.us/swhfr

Twitter feeds:
http://ift.tt/1iWH4ta and http://ift.tt/1wJXm19

from dxnews http://ift.tt/2r11RKT
via IFTTT

Amateur Radio Hall of Fame Announcement 2017. From DXNews.com

This year CQ is releasing three separate announcements for its Halls of Fame, with release time embargoes. The CQ DX Hall of Fame and CQ Contest Hall of Fame announcements will be released early Saturday and Sunday UTC.

from dxnews http://ift.tt/2rAq7zP
via IFTTT

5Z4/OZ1AA – Kenya

UPDATE – During May 25-29, Thomas will be active from Lamu Island AF-040 Thomas, OZ1AA is now active from Kenya, staying there until June 15th. QRV when time permits as 5Z4/OZ1AA. QSL via OZ1ACB, Club Log OQRS or LoTW.

from dxnews http://ift.tt/2qnRjEq
via IFTTT

5Z4/OZ1AA Kenya. From DXNews.com

Thomas, OZ1AA will be active from Kenya until 15 June 2017 as 5Z4/OZ1AA.

from dxnews http://ift.tt/2qpOEu9
via IFTTT

Today’s graph, plotting the SESC sunspot number, the...

Today’s graph, plotting the SESC sunspot number, the 10.7cm Radio Flux, and the Estimated Planetary A Index, for the last 30 days.

The numbers are:

   Date    | Sunspots | 10.7-cm Flux |  Ap 
==========================================
2017/05/18 |     24   |     72       |  11
2017/05/17 |     13   |     71       |   8
2017/05/16 |     11   |     72       |   9
2017/05/15 |      0   |     71       |  14
2017/05/14 |      0   |     71       |  10
2017/05/13 |      0   |     70       |   4
2017/05/12 |      0   |     69       |   7
2017/05/11 |      0   |     69       |   6
2017/05/10 |      0   |     69       |   6
2017/05/09 |      0   |     69       |   6
2017/05/08 |     11   |     71       |   6
2017/05/07 |     23   |     72       |   8
2017/05/06 |     26   |     73       |   5
2017/05/05 |     31   |     74       |   6
2017/05/04 |     29   |     74       |   7
2017/05/03 |     15   |     75       |   4
2017/05/02 |     25   |     77       |   5
2017/05/01 |     11   |     75       |   5
2017/04/30 |     33   |     77       |   6
2017/04/29 |     34   |     77       |   6
2017/04/28 |     35   |     78       |   6
2017/04/27 |     23   |     78       |   7
2017/04/26 |     36   |     80       |   9
2017/04/25 |     36   |     81       |  12
2017/04/24 |     41   |     80       |  20
2017/04/23 |     43   |     83       |  41
2017/04/22 |     29   |     84       |  54
2017/04/21 |     39   |     82       |  19
2017/04/20 |     26   |     81       |  30

For complete live data and images visit http://SunSpotWatch.com

Be sure to share this post, to spread the love!

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO): https://www.youtube.com/watch?v=zXN-MdoGM9g

We’re on Facebook: http://NW7US.us/swhfr

Get your copy of the self-study space weather and radio propagation course: http://nw7us.us/swc

from dxnews http://ift.tt/2rAhu8u
via IFTTT

At the Lincoln:Code() event in #Lincoln, #Nebraska. Attending an...

At the Lincoln:Code() event in #Lincoln, #Nebraska. Attending an #Agile session.

#programming #progress #engineering #learning #learn (at Lincoln, Nebraska)

from dxnews http://ift.tt/2rAjmhr
via IFTTT

Did you know? Here’s a space weather and radio...

Did you know? Here’s a space weather and radio propagation educational tidbit – from http://SunSpotWatch.com – at 14:00 UTC on 2017-05-19:

A geomagnetic storm is defined by changes in the “Dst” (or, “DST”), which stands for the “Disturbance, storm time” index. A geomagnetic storm has three phases: an initial phase, a main phase and a recovery phase.

The main phase of a geomagnetic storm is defined by Dst decreasing to less than -50 nT. The minimum value during a geomagnetic storm will be between -50 and approximately -600 nT. The duration of the main phase of geomagnetic storms is typically between 2 and 8 hours.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com

See the live aurora mapping is at http://ift.tt/2lYUS2h

If you are on Twitter, please follow these two users:

• http://ift.tt/1iWH4ta

• http://ift.tt/1wJXm19

from dxnews http://ift.tt/2rAb217
via IFTTT

ZS9V Robben Island. From DXNews.com

Group of Radio Amateurs will be active from Robben Island, IOTA AF-064, 9 - 13 August 2017 as ZS9V.

from dxnews http://ift.tt/2r05hNY
via IFTTT

ZS9V – Robben Island, AF-064

NEWS UPDATE – ZS9V will again be active from Robben Island, IOTA AF-064 during August 9-13, 2017. QSL via M0OXO. JULY 23, 2016 — During the International Lighthouse Lightship Weekend (August 19-21), look for ZS9V to be active from Robben Island, AF-064. Two stations with Inverted V and TH3 antennas and 500W amplifier. QSL via […]

from dxnews http://ift.tt/2rz9GEF
via IFTTT

Today’s Sun (artificially-colored in yellow) seen at the...

Today’s Sun (artificially-colored in yellow) seen at the 171-angstrom wavelength (Extreme Ultraviolet, or EUV), as viewed by the Solar Dynamics Observatory (SDO), by the Atmospheric Imaging Assembly (AIA).

At this wavelength, at a wavelength not seen by the un-aided eye, we observe the Sun with the 17.1 nm (171 A) filter. This Extreme Ultraviolet (EUV) waveband is used to monitor the corona and upper transition region. With this filter, we can see the myrid of massive magnetic field lines, from simple to complex, that weave and twist throughout the Sun.

The image is a ‘false color image’, meaning that observed data are in a range outside of what human eyes can see, so the data are digitally recast into colors that emphasize physically important features. This view is created from data gathered by the Solar Dynamics Observatory (SDO) satellite that flies above Earth’s atmosphere in an inclined geosynchronous orbit.

Emissions captured in this image come from iron (Fe), a trace element in the solar atmosphere that emits Extreme Ultraviolet (EUV) light when heated to temperatures in excess of one million deg K. In the solar corona the temperatures are so high that most chemical elements have lost many of their electrons. Some of the remaining electrons still attached to the atom emit EUV radiation in narrow wavebands or lines.

The 17.1 nm filter, or channel, is dominated by emissions from highly ionized iron: 8 times ionized (missing 8 electrons) iron–Fe IX. The roman numeral descriptors are consistent with spectral notation: the level of ionization for a given roman numeral is one unit larger that the actual number of missing electrons. The temperatures associated with this level of ionization is about 6 x 10^5 K.

The bright regions in this image correspond to regions of closed magnetic field loops that trap the hot, emitting plasma. Large bright regions are often called active regions. The dark regions correspond to cooler temperatures and possibly to locations where magnetic field lines open into the heliosphere, and thus, do not trap hot plasma.

View live data and images at http://SunSpotWatch.com

We’re on Facebook: http://NW7US.us/swhfr

from dxnews http://ift.tt/2r0fhqn
via IFTTT

V51/TA1HZ Namibia. From DXNews.com

Tevfik, TA1HZ will be active again from Namibia 28 - 29 October 2017 in CQ WW DX SSB Contest as V51/TA1HZ.

from dxnews http://ift.tt/2n8w3z8
via IFTTT

Latest TEC map from NASA. What is TEC? Total Electron Content...

Latest TEC map from NASA. What is TEC? Total Electron Content (or TEC) is an important descriptive quantity for the ionosphere of the Earth. TEC is the total number of free electrons integrated between two points, along a tube of one meter squared cross section, i.e., the electron columnar number density. Affected by solar activity, Total Electron Content (TEC) describes the total number of free electrons present within one square meter between two points (i.e. between the receiver and satellite involved in measuring TEC).

These maps are also used to monitor ionospheric weather, and to nowcast ionospheric storms that often occur responding to activities in solar wind and Earth’s magnetosphere as well as thermosphere.

View live data and images at http://SunSpotWatch.com

Follow: http://ift.tt/1iWH4ta and http://ift.tt/1wJXm19

Facebook: http://NW7US.us/swhfr

And: Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO): https://www.youtube.com/watch?v=zXN-MdoGM9g

We’re on Facebook: http://NW7US.us/swhfr

from dxnews http://ift.tt/2r0BSDg
via IFTTT

V51/ TA1HZ – Namibia

Tevfik, TA1HZ will again be active from Swakopmund Beach Hotel, Namibia as V51/TA1HZ during the CQ WW DX SSB contst (October 28-29, 2017). Expect activity before/after contest. QSL via LZ3HI.

from dxnews http://ift.tt/2r0ssrJ
via IFTTT

CT9/R7KW & CT9/YL3JM Madeira Island AF-014

Serge R7KW and Oleg YL3JM will be active from Madeira Island, IOTA AF-014, 25 to 28 May 2017 as CT9/R7KW and CT9/YL3JM.
Working on HF Bands including activity in CQWW WPX CW Contest.
QSL via K2PF, OQRS ClubLog.

from dxnews http://ift.tt/2qZ1qRj
via IFTTT

Z25DX Zimbabwe

Tom KC0W will be active from Zimbabwe 23 May to 18 June 2017 as Z25DX.
Working on 80 – 6m in CW.
QSL via KC0W direct.

 

from dxnews http://ift.tt/2qA9jM7
via IFTTT

TK/F4GHS Corsica Island EU-014

Alexandre F4GHS Announcement:

“Hello, 

I will be active from the west coast of Corsica, IOTA EU-014, on HF bands between 23 to 28 May 2017.

Qsl via bureau or direct via home call.”

source: qrz.com

from dxnews http://ift.tt/2qAchju
via IFTTT

21/05/2017 – F4DVX/P from Castle of Castelneau (new one WCA: F-06451) during French Castles Day

Hello all,

The 21 May, National Day of Castles in France (equivalent of WCA weekend)

http://ift.tt/2qL4Ln2 in French sorry

I will be on WCA F-06451 (DFCF 33197 castle French reference) as F4DVX/P 6h00 to 16h00 utc.

and Chateau de Castelneau, WCA: F-06453.

Welcome to the internet website of the Château de Castelneau

Longitude : -0.28149 W (0° 16′ 53” W)

Latitude : 44.77708 N (44° 46′ 37” N)

QTH locator : IN94US

QRV on 80,40,20,15,10m SSB only.

See you on the air

73 QRO de F4DVX David

from dxnews http://ift.tt/2rofJei
via IFTTT

21/05/2017 – French Castles Day – 2017!

– A traditional activity day of French castles will take place on the 21^st of May from 6 till 16 UTC. Great activity of French hams is expected.

Detailed information at DFCF Home Page (in French)

Good chance to fulfil conditions of DFCF Award

from dxnews http://ift.tt/2rkgdTH
via IFTTT

20-21/05/2017 – SV-00042 Mytilene Castle, Lesvos Island Greece

The members of Lesvos Island Amateur Club (SZ8LES) will activate the Castle of Mytilene, WCA: SV-00042 from May 20^th 10:00 UTC until May 21^st 10:00UTC.

Hope to meet you on the air!!

73 and 44 de SZ8LES.

from dxnews http://ift.tt/2qgz1EK
via IFTTT