Propagation
Information and Report
Predictions were based on the W6EL Propagation Program
With a flux level of initially 85 (Estimated in March 2004 for Dec 2004).
These
levels were modified to 100 (Estimated in Nov 2004 for Dec 2004)
Realtime levels fluctuated from day to day.
The
actual WWV info was as below
28 Nov I=110, A= 10, K= 2, R= 64
Min,G1=) Min,G1
29 Nov I=111, A=
17, K= 3, R= 66 No storms=) No storms
30 Nov
I=111, A= 19, K= 2, R= 40 No storms=) No storms
01 Dec I=111, A= 15,
K= 2, R= 42 Min,G1,R1=) No storms
02 Dec I=111, A= 11,
K= 0, R= 52 No storms=) No storms
03 Dec I=106, A= 4, K=
0, R= 62 Min,R1=) No storms
04 Dec I=101, A= 3, K=
0, R= 58 No storms=) Mod,G2
05 Dec I= 97, A= 0, K=
2, R= 43 No storms=) Mod,G2
06 Dec I= 96, A= 7, K=
4, R= 46 No storms=) No storms
07 Dec I= 93, A= 18,
K= 3, R= 47 Min,G1=) No storms
08 Dec I= 90, A= 14,
K= 2, R= 26 No storms=) No storms
09 Dec I= 81, A= 11,
K= 4, R= 40 No storms=) No storms
10 Dec I= 87, A= 9, K=
3, R= 39 No storms=) No storms
11 Dec I= 90, A= 18,
K= 4, R= 39 No storms=) No storms
12 Dec I= 90, A= 17,
K= 4, R= 16 Min,G1=) No storms
13 Dec I= 91, A= 27,
K= 2, R= 26 Min,G1=) No storms
14 Dec I= 90, A= 12,
K= 2, R= 22 No storms=) No storms
15 Dec I= 89, A= 7, K=
2, R= 18 No storms=) No storms
16 Dec I= 89, A= 5, K=
3, R= 28 No storms=) No storms
17 Dec I= 90, A= 11,
K= 3, R= 14 No storms=) Min,G1
18 Dec I= 90, A= 17,
K= 3, R= 40 No storms=) No storms
Tnx to the OH2AQ Database for
information
Useful
Information - 20m propagation from 3D2
If you live in
Southern EU countries, your path to the Pacific is better than hams who live in
Northern EU
Countries who faired very well with cdx (long & short path) were
Italy, Greece, Croatia, Israel and suprisingly - Austria.
Countries also within
central Europe such as Russia, Latvia, Estonia, Switzerland, Hungary,
Yugoslavia, Slovenia also did well.
Countries
who cdx were very difficult (long & short path) UK, Holland, Belgium,
although the Scandinavian countries seemed to do ok.
The path
opens at nearly the same time every day. Before 05.00z the cdx are very quiet
around the Pacific area on HF. You could hear the odd station on one of the
other pacific islands, but generally it's very quiet.
Around 05.00z for some reason a few
French stations appeared, then from 05.00-06.00z I was working
USA/South
America/Central America, plus the cdx from other VK states, ZL and JA were
improving all the time.
At around
06.00 saw some of the EU long path signals building mainly from southern EU
countries.
The cdx would build and below is an extract from the OC-121 log at
06.00z, showing the diverse range of countries.
7/12/2004
06.00 14.260 SV1CER 5/9
7/12/2004 06.00 14.260 FK1TK 5/9
7/12/2004 06.01
14.260 UA6MF 5/9
7/12/2004
06.01 14.260 FO5QS 5/9
7/12/2004
06.02 14.260 KJ6OW 5/9
7/12/2004
06.03 14.260 4X1FQ 5/9
7/12/2004
06.04 14.260 RN6BW 5/9
7/12/2004
06.05 14.260 K6IRD 5/9
7/12/2004
06.05 14.260 4Z5PT 5/9
7/12/2004
06.05 14.260 YO8OK/P 5/9
7/12/2004
06.05 14.260 UR5LCV 5/9
7/12/2004
06.06 14.260 RN3DK 5/9
7/12/2004
06.06 14.260 RK3DH 5/9
7/12/2004
06.06 14.260 OM5FM 5/9
7/12/2004
06.06 14.260 US0GA 5/9
7/12/2004
06.06 14.260 IZ8EJB 5/9
7/12/2004
06.07 14.260 UA3DR 5/9
7/12/2004
06.07 14.260 IV3YIB 5/9
7/12/2004
06.07 14.260 VK4UA 5/9
7/12/2004
06.07 14.260 SP5EWY 5/9
7/12/2004
06.07 14.260 OM5RW 5/9
From around 07.00z you could clearly hear the "Multipathing" echo effect in full swing with both long and short paths open together. Stations from DL,F,ON,LA,SM,OH and the occassional G would appear from 08.00 onwards. As time progressed stations further north and west and especially from EA and CT would show at around 08.30z and some good signals from EA8 at around 09.30z. Generally the long path would open only for about 1 hour max, the short path would continue to open until approx 10.30z - then over a period of only a few minutes the band would close and stations would drop out very quickly. Noise levels were variable - no man made stuff, only "Sun" noise as you could hear the increase in the period leading up to the openings. From S zero at 03.00 to S3/4 at 06.00, although this level varied from day to day. I remember 1 day at S9 background noise during a long path opening, down to S1 the next day.
On 2 days on OC-156 we had very poor/no long path cdx. On OC-137 we had a superb short path opening to G for 3 hours+ on 14/12. At sunrise time in the Pacific 20m goes quiet - there's a few US stations around, but not very strong - also 15 and 10 are dead.
Check out
the 3D2FI Dx Spots here
Check out the VK2IAY/4 Dx Spots here
The links below were the original propagation predictions
3D2
to England (Short Path) 3D2
to England (Long Path)
3D2 to USA W6
(Short Path) 3D2
to USA W6 (Long Path)
3D2 to USA W4
(Short Path) 3D2
to USA W4 (Long Path)
3D2 to Asia 9M2
(Short Path) 3D2
to Asia 9M2 (Long Path)
3D2 to Asia UA9
(Short Path) 3D2
to Asia UA9 (Long Path)
3D2 to Asia JA
(Short Path) 3D2
to Asia JA (Long Path)
3D2 to Italy (Short
Path) 3D2
to Italy (Long Path)
3D2 to Sth America
PY (Short Path) 3D2
to Sth America PY (Long Path)
3D2 to Sth Africa
ZS (Short Path) 3D2
to Sth Africa ZS (Long Path)
3D2 to Carribean
6Y (Short Path) 3D2
to Carribean 6Y (Long Path)
3D2 to Middle
East 9K2 (Short Path) 3D2
to Middle East 9K2 (Long Path)
3D2 to Australia
VK (Short Path)
