Kjell, SM7GVF (ex SM4GVF)
Propagation openings worked
from JO77GA.
All maps, unless otherwise noted, show my own QSOs.
You also find some sound files, either recorded by myself or
received from others.
QTH is at 200 masl, antenna is at 23 magl.
These are just examples.
2018-11-22 Tropo
A very good tropo to south east, reaching to UA6 on 432 and 1296
MHz.
2018-07-12 Meteor scatter Perseids
I worked R6CS on 432 MHz, FSK441, a distance of 2033 km, and
some 2 m QSOs.
2017-12-14 Meteor scatter, the Geminids shower
I did some tries on 432 MHz, and worked YO6OBK as a new DXCC.
Another QSO was with F6KBF, waiting long for reflexions, and then
suddenly I get two strong
close together.
2017-05-30 Sporadic E on 144 MHz.
Five Italian stations worked.
2016-12-28-30 Tropo
Not so wide spread tropo, but fun any how.
144 MHz. F6DBI longest distance, 1533 km.
432 MHz. G4RRA longest distance, 1390 km.
1296 MHz. F6DKW longest distance, 1234 km.
2016-08-24--25 Tropo on VHF and UHF
The tropo continues on August 26.
144 MHz map of QSO, longest distance worked is YU1EV, 1441 km.
YU1EV was also worked on the morning of August 26.
432 MHz map, again YU1EV is longest.
9A2SB and YU1EV for new DXCC. YU1EV
sound.
1296 MHz map, longest distance worked is 9A2SB, 1309 km.
9A2SB and HA2ML for new DXCC.
2016-06-30 Iono on 144 MHz
I worked I3MEK, JN55SJ, at 11:30 UTC with good signals with
ionospheric scatter, a distance of 1310 km, on CW, recording here.
2015-12-20 Aurora
This is an update of the fine aurora we had that day, I worked
between 12:39 and 23:52, see the maps below.
144 MHz Aurora contacts.
432 MHz Aurora contacts.
2015-03-17 Aurora
A very good Aurora appeared, the best one in this solar cycle,
worked stations on 144 MHz below. Longest distance was RN3QR in
LO00BK, 1827 km. I also worked many stations on 432 MHz.
2014-05-13 ES
Es on 2m, I worked RZ6MB in the afternoon.
2013-07-24 ES
I only worked EI3KD on a brief opening.
An IONO/FAI attempt at 1200 Z with G4LOH was made, recoding here. Its spectra looks
like this:
2013-07-21 Tropo
Warmest day of the year, this far, +28 C.
A tropo opening in the morning. EI3KD was the furthest away with
1570 km on 144 MHz. Mark has a recording here.
On 432 MHZ GD0EMG with 1246 km, and on 1296 MHz GM4CXM over a 1168
km path.
The map shows 144, 432 and 1296 MHz QSOs.
In the afternoon GI4SNA was worked, not on map.
2012-07-15 Best aurora since long!
Already when arriving home at 12:35 the aurora was strong, it lasted
till around 19:45, till later south-west of me, it was worked in
Italy. First time I experience being north of the aurora!
I worked a new personal and Swedish ODX on 432 MHz, UR5LX, KO70WK –
1578 km.
432 MHz aurora above
On 144 MHz, I reached down to JN27, 57, 67 and JN87.
This is the magnetometer of SM4IVE;
2012-07-09 A good aurora.
Worked a new ODX for me, UA4UK.
2012-07-01 First Es on 144 MHz here this year.
I worked a number of UA6, LZ, YO, and 4Z5LY, 3117 km! First
SM-4X on 2m terrestrial propagation!
Below is DX-Cluster spots (144 MHz) between 13:30 and 14:30, our QSO
was at 14:03. Also worked at 13:56 and heard 15:03.
2012-06-06 Es and vulcanoes
Updated the graph with CT1HZE last Dubus number of Es:es.
2012-06-02 First JA on 50 MHz.
At around 08:30 I worked 30 JA stations on 50 MHz, some with
very good signals.
2012-05-26 What about Es this year?
Future will tell, but the number of active volcanoes is lower
than what it has been during the last few years. Possibly lower Es
activity this year?
2012-03-15 Aurora!
2012-03-09 Aurora!
Aurora down to HA/OK and I worked F6DWG as well, on 2m, see
the map below. DL6NAA worked on 432 MHz.
2011-11-10
Tropo, map shows 144 MHz. I was in the middle of popagation, many
QSO:s were performed between stations in England and Finland,
Estonia.
While sleeping, this is the signal level from OK0EP on 432.886 MHz
on 2011-11-11, time is UTC+1.
2011-07-27
Es to Japan on 50 MHz in the morning.
2011-07-13
Es on 2m.
2011-07-06
Es on 2m.
2011-07-01
An Es-opening on 144 MHz. The whole June passed without any opening
(here, that I have catched).
2011-06-14 Sporadic E (144 MHz)
correlation with Earth Volcano Activity - Follow Up
I wrote an article in DUBUS 3/2010 about my observed correlation
between Earth Volcano activity and Mid Latitude Sporadic E on 144
MHz.
The graph below show my findings, updated
with data through 2010.
The correlation between DUBUS Es (which is the number of mid
latitude 144 MHz sporadic E days that CT1HZE has presented in DUBUS)
is such;
- Correlation with Sum VEI is 0.65
- Correlation with Number of volcanoes is 0.54
- Correlation with VEI >=4 is 0.63
for the period 1974 through 2010.
It looks that the volcano activity has decreased since a peak in 2007-2009, so Es activity
could decrease this year?
Thanks goes to CT1HZE and DUBUS, and The Smithsonian Institution for
making data public, making studies like this possible.
2011-05-26 Es on 144 MHz
Heard EA7AJ (IM87CS) at 14:16, 2531 km
Worked TK5JJ (JN41IN) at 14:35, 1769 km.
Worked CT1HZE (IM57NH) at 16:14,
2791 km. New ODX. Listen here.
10 minute Es data.
2011-05-24 Sporadic E on 144
MHz.
At 16:12 I worked the first Es on 144 MHz this, year, IK5RWP
(JN52US, 1598 km), audible for a couple of minutes.
2011-04-09 Sporadic E
distances on 50 MHz.
In several papers, it is suggested that long distance Es could be
multiple hop Es.
It is hard to evaluate, there are oceans between Europe and USA, and
no activity in UA.
It is about 5400 km to Canada from here, and 7800 km to Japan.
Below is a graph over distances worked from here in 2005-2010,
distances truncated to 100 km bins.
Multiple QSO:s with the same station occurs in these data. About 300
QSO:s over 4000 km.
The map below shows worked squares, with 2000 km circles.
Aurora 2010-10-11
World wide number of QSOs via
Aurora on 1296 MHz: 2
1. SM3AKW and SM5QA on 2001-04-11
and
2. SM7GVF and SM4IVE on 2010-10-11 at 1621 UTC.
JO77GA (QTF=39) to JO79SD (QTF=44,
elevation=4) Mp3 file here.
We made the QSO just to prove it can be done more than once on
such a high frequency.
SM7GVF 67 el yagi and 150 W, SM4IVE 13 m dish 1kW.
Doppler shift was about +3 kHz.
Some more reading here.
2010-08-13 Meteor scatter on
432 MHz
I worked many QSOs on 144 MHz, using FSK441, during the Perseids
shower.
I made also two attempts on 432 MHz. On 432 MHz, the signal strength
is mostly much lower, and the burst length is much shorter than on
144 MHz.
I made QSOs with G4YTL and S50C in JN76JG (1196 km). This distance
is a bit short even for 144 MHz, but never the less.
Below is one period with two very good bursts, I was very surprised
over the length of these. But they are very rare.
2010-07-04 Es on 50 MHz to Japan
Es on 50 MHz is so common during the summer, not much writing
about.
This morning, however, I had a good opening to Japan.
From 06:49 to 08:18 I worked 50 QSO:s, see map below.
2010-06-22 Es on 50 MHz to Japan
In the night from 22:02 to 22:29, this was an unusual time.
2010-06-20 Es 50 + 144 MHz
What a day! This is what I worked on 50 MHz;
On 144 MHz, two QSO;s were made, UR6EC at 10:45 and CT1DIZ/P
(IM69HH, 2533 km) at 13:56.
2010-06-13 144 MHz Es
EA7 on 144 MHz!
There were two Es clouds in the direction to the EA7 stations from
my QTH.
The map shows 144 MHz spots for 1700-1735, including my two QSO:s.
17:23 EB7COL IM77AG
2668 km mp3 recording
17:24 EA7TL
IM66VO 2744 km mp3 recording
Nothing else worked (on 2m).
2010-06-11
15 QSO:s with USA on 50 MHz.
2010-06-08 50 MHz
to Florida
At around 23 UTC there was an opening to Florida, click on the
picture for a larger view.
2010-06-07 144 MHz Es
I have the impression this is the best Es season since many
years, so far it looks very good.
| 2010/06/07 |
09:58 |
SV3BSF |
KM08UF |
SSB |
2154 |
| 2010/06/07 |
09:58 |
SV2RM |
KN00PK |
SSB |
1906 |
| 2010/06/07 |
10:02 |
SW6KRV |
KM09KO |
FM |
1990 |
| 2010/06/07 |
10:19 |
SV8CS |
KM07JS |
SSB |
2189 |
| 2010/06/07 |
10:29 |
SW6IED/M |
KM09 |
FM |
2002+- |
| 2010/06/07 |
11:11 |
YU2DX |
KN04GS |
SSB |
1424 |
| 2010/06/07 |
11:11 |
YU2KO |
KN04ET |
SSB |
1416 |
| 2010/06/07 |
11:18 |
YU1IO |
KN04IQ |
SSB |
1436 |
| 2010/06/07 |
11:24 |
YU1EV |
KN04CN |
SSB |
1440 |
| 2010/06/07 |
11:24 |
YT3N |
KN04LP |
SSB |
1446 |
| 2010/06/07 |
11:34 |
SW2HXX |
KN10LN |
SSB |
1927 |
| 2010/06/07 |
11:37 |
SW2HXX |
KN10LN |
SSB |
1927 |
| 2010/06/07 |
11:39 |
SV2CXW |
KN10LP |
SSB |
1918 |
| 2010/06/07 |
11:44 |
LZ3RX |
KN12TQ |
CW |
1718 |
| 2010/06/07 |
11:50 |
LZ2CM |
KN13OJ |
CW |
1632 |
| 2010/06/07 |
11:54 |
LZ1BB |
KN12PQ |
CW |
1709 |
| 2010/06/07 |
11:56 |
LZ5UV |
KN12PR |
CW |
1705 |
| 2010/06/07 |
11:57 |
YT1VP |
JN94WG |
CW |
1465 |
| 2010/06/07 |
11:59 |
YU1EV |
KN04CN |
CW |
1440 |
| 2010/06/07 |
11:59 |
YU1IO |
KN04IQ |
CW |
1436 |
| 2010/06/07 |
12:08 |
LZ1RK |
KN22EF |
CW |
1786 |
A second wave;
| 2010/06/07 |
15:07 |
YO4FYQ |
KN44FD |
SSB |
1729 |
| 2010/06/07 |
15:15 |
US7VF |
KN58SH |
FM |
1493 |
| 2010/06/07 |
15:16 |
UT1EA |
KN68RA |
FM |
1615 |
| 2010/06/07 |
15:18 |
UT5VAP |
|
FM |
| 2010/06/07 |
15:19 |
UR5UI |
KN59BS |
FM |
1305 |
| 2010/06/07 |
15:21 |
UY5UZ |
KN59 |
FM |
1372+- |
| 2010/06/07 |
15:25 |
UR5VFJ |
KN69OA |
SSB |
1524 |
| 2010/06/07 |
15:26 |
US7VF |
KN58SH |
SSB |
1493 |
| 2010/06/07 |
15:27 |
UY1HY |
KO60MA |
CW |
1442 |
| 2010/06/07 |
15:28 |
US0GB |
KN67UA |
CW |
1708 |
| 2010/06/07 |
15:32 |
UT1EI |
KN68SE |
SSB |
1606 |
| 2010/06/07 |
15:35 |
UR3CFC |
KN58CR |
FM |
1392 |
| 2010/06/07 |
15:36 |
UY5UZ |
KN59 |
FM |
1372+- |
2010-06-02 144 MHz Es
Yet another day with Es on 2 m.
| 2010/06/02 |
07:45 |
UA3RN |
LO03VK |
CW |
1760 |
| 2010/06/02 |
07:50 |
RA3RF |
LO03WK |
CW |
1765 |
| 2010/06/02 |
07:51 |
UA3RBO |
LO03NG |
CW |
1727 |
| 2010/06/02 |
07:52 |
UA3RN |
LO03VK |
SSB |
1760 |
| 2010/06/02 |
08:04 |
UA3PTW |
KO93BS |
CW |
1524 |
| 2010/06/02 |
08:06 |
RN3RBP |
LO03VK |
SSB |
1760 |
| 2010/06/02 |
08:07 |
UA4FHQ |
LO13UG |
SSB |
1884 |
| 2010/06/02 |
08:08 |
RU3GX |
KO92SO |
SSB |
1664 |
| 2010/06/02 |
08:13 |
UA3SBO |
KO93ST |
FM |
1607 |
| 2010/06/02 |
08:15 |
RA3POV |
KO93CX |
FM |
1520 |
| 2010/06/02 |
08:21 |
RA3LX |
KO65SE |
CW |
1191 |
| 2010/06/02 |
08:22 |
RV3RA |
LO02QP |
CW |
1772 |
| 2010/06/02 |
08:23 |
UA3XEH |
KO73FU |
SSB |
1299 |
| 2010/06/02 |
08:23 |
RA3GES |
KO92SO |
SSB |
1664 |
| 2010/06/02 |
08:26 |
UA4API |
LO20QC |
CW |
2154 |
| 2010/06/02 |
08:30 |
RU4AN |
LO20QG |
CW |
2144 |
| 2010/06/02 |
08:32 |
RV3RA |
KO92UQ |
SSB |
1670 |
| 2010/06/02 |
08:33 |
RA3GL |
KO92FO |
SSB |
1599 |
| 2010/06/02 |
08:48 |
RN3QR |
LO00BK |
CW |
1821 |
| 2010/06/02 |
08:49 |
UA3WM |
KO72QI |
CW |
1429 |
| 2010/06/02 |
08:55 |
RA3WDK |
KO81BR |
CW |
1508 |
| 2010/06/02 |
08:57 |
RD3WAR |
KO71IM |
CW |
1438 |
| 2010/06/02 |
09:00 |
RA3WDK |
KO81BR |
SSB |
1508 |
2010-06-01 144 MHz Es
| 2010/06/01 |
12:13 |
G4RRA |
IO80BS |
SSB |
1386 |
| 2010/06/01 |
12:51 |
EI9GQ |
IO51TV |
SSB |
1577 |
| 2010/06/01 |
17:05 |
RV6YY |
LN04AO |
SSB |
2239 |
| 2010/06/01 |
17:13 |
LY2WR |
KO24FO |
SSB |
674 |
| 2010/06/01 |
17:20 |
UT8AL |
KO61WP |
SSB |
1382 |
| 2010/06/01 |
17:25 |
UT8AL |
KO61WP |
CW |
1382 |
| 2010/06/01 |
17:27 |
RA6HHT |
LN04WX |
CW |
2309 |
| 2010/06/01 |
17:28 |
UR4LQ |
KO80BC |
CW |
1609 |
| 2010/06/01 |
17:32 |
RA3WDK |
KO81BR |
SSB |
1508 |
| 2010/06/01 |
17:47 |
UA3WM |
KO72QI |
SSB |
1429 |
| 2010/06/01 |
17:52 |
UR5LLW |
KN89EQ |
SSB |
1652 |
| 2010/06/01 |
17:53 |
UR5LX |
KO70WK |
SSB |
1573 |
| 2010/06/01 |
17:54 |
RZ6BU |
KN84PV |
SSB |
2069 |
| 2010/06/01 |
17:56 |
UY7QN |
KN77MJ |
CW |
1748 |
| 2010/06/01 |
17:58 |
RA6AS |
KN93VN |
CW |
2312 |
| 2010/06/01 |
18:05 |
UR6EC |
KN78XM |
SSB |
1711 |
| 2010/06/01 |
18:07 |
UR4LQ |
KO80BC |
SSB |
1609 |
| 2010/06/01 |
18:08 |
RW3WR |
KO71IM |
SSB |
1438 |
| 2010/06/01 |
19:01 |
RW3WR |
KO71IM |
CW |
1438 |
| 2010/06/01 |
19:47 |
UT7QF |
KN77MV |
CW |
1709 |
| 2010/06/01 |
19:48 |
UT3EW |
KN78IL |
CW |
1646 |
| 2010/06/01 |
19:49 |
UA6AGK |
KN96DQ |
CW |
1978 |
| 2010/06/01 |
19:50 |
UT2QA |
KN86KS |
CW |
1895 |
| 2010/06/01 |
20:16 |
US0GB |
KN67UA |
CW |
1708 |
| 2010/06/01 |
20:21 |
RA6AS |
KN93VN |
CW |
2312 |
| 2010/06/01 |
20:34 |
UY2QQ |
KN77OT |
SSB |
1724 |
| 2010/06/01 |
20:42 |
UT1EA |
KN68RA |
CW |
1615 |
The QRB is rounded in VQLog.
New ODX RA6AS is
2317 km with WGS 84.
2010-05-26
On 49.750+- I have heard the signals below among the usual TV
carrirers, any one know what it is?
It arrives from about 45 degrees, at 1000 UTC.
49747.7-am.mp3
49747.7-ssb.mp3
No one knows?
2010-05-23 144 MHz Sporadic E
This day there was a sporadic E for several hours on 144 MHz,
but out of reach for me.
14:46 SW8NAC KM07JS 2189 km SSB
2010-05-02 Aurora
Following two solar eruptions on May 1, we had some aurora
again. It started in the early afternoon (I was not at home then)
and lasted till about 1930 UTC. We had some in the night also, but
no activity.
I worked the following squares on 144 MHz, with DF1CF in JN57 as ths
southernmost station.
2010-04-05 Aurora
Between about 14:50 and 17:20 I worked 40 QSO:s on 144 MHz Aurora.
Are we at last seing an increase in aurora activity?
Worked QSO:s below.
2008-2009 openings
Openings 2007 and older here
See also my best DX worked list
Back to sm7gvf
