Posts Tagged ‘Es’
LB9YE and I have been exchanging WSPR spots since 0458z this morning. In both directions there is considerable Doppler. On another signal (not currently decoding) there are clear signs of meteor reflections as the signals are strong but in short bursts. I wonder if MS was playing a part in LB9YE’s decodes?
Earier in the night PB0AIC (288km) was decoded STRONGLY at -8dB S/N . At this range I assumes this was early morning tropo or again possibly MS? At the very same time 0404z, G8VDQ (93km) , was decoded strongly at -12dB S/N.
Otherwise all quiet on the Es front.
I do wonder sometimes about Es (SPORADIC E-layer) reflections. Many signals do come into this category with fleeting, often quite localised, strong openings, but many others are anything but sporadic. Are these really Es as we know it or some other propagation?
At 1936z G8VDQ (93km) in IO91um was spotted here at -26dB S/N. When there are GDX stations they seem to be copied. G8VDQ’s signal had -3Hz Doppler, suggesting aircraft reflection was involved.
UPDATE 1950z: Es is still in evidence with DK6UG spotting me 4 times (so far) now at around -22/-23dB S/N.
UPDATE 2120z: Es again; this time IK1WVQ (1084km) spotted at -20dB S/N.
CX2ABP (11127km) and FR1GZ (9724km) have both been spotted here today on 10m WSPR, so there was/is N-S F2-layer propagation on 10m, as expected. So far only EA1KV (1304km) has spotted my 2W 10m signal, but it is early days.
I will stick on 10m at least this afternoon but may go back to 6m later chasing transatlantic Es DX.
It is possible that this 10m N-S DX propagation is a mix of F2-layer and Es. EA1KV is spotting me consistently via Es and it could be only F2-layer from further south where the F2 MUF will be higher?
UPDATE 1530z: More Es about now on 10m. Spots from Norway, Sweden and Denmark. As I recall from previous Es seasons, openings to Scandinavia seem to become more frequent later in the Es season. Is this to do with thunderstorm activity or some more obscure Es connection? PA0O (440km) is also being spotted by me. This could be short skip Es, or even tropo. I notice G4IKZ regularly spots him by tropo on 6m.
|10m unique WSPR spots so far today (now 1545z)|
I have now closed down on 6m for the night, but not before spotting G8JNJ/A (184km) at -25dB S/N at 2032z. A little earlier he spotted me. Otherwise the band is quiet apart from local G4IKZ (18km).
Around teatime I had a couple of Es spots from German stations on 6m.
6m has been good with lots of spots both ways of CN8LI (2113km) during the day. So far, he has spotted me ten times (see below) and I have spotted him 5 times by 1435z. The common wisdom is this is Es but he is the ONLY DX spot so far and this is long distance for single hop. There is no sign of stations half way if this is double hop Es. Could it be F2-layer 1 hop? He has spotted me twice since (by 1525z).
|Spots of my 1W ERP 6m WSPR signal by CN8LI (2113km)|
|6m so far on WSPR|
Just semi-locals on 6m today so far. Maybe there will be Es about later? My locals G4IKZ and G4KPX don’t appear to be on 6m today.
UPDATE 1746z: Just the semi-locals still all afternoon, with no sign of 6m Es here today, well not yet! Will 61km be my best DX today?
UPDATE 1754z: Just a few minutes later on 6m WSPR and OZ7IT (853km) in JO65df square was booming in at -8dB S/N by Es.
UPDATE 2105z: No further Es seen here this evening on 6m.
|10m unique WSPR spots yesterday|
Quite a productive day on 10m yesterday with both Es and F-layer DX about. Best DX spot of my 2W was from FR1GZ on Reunion Is. and my best spot was of CX2ABP (11127km) in Montevideo, S.America who uses 5W.
This morning I have returned to 6m but G4IKZ, my faithful local reporter is not on!