HF Propagation on QRZCQ - The database for radio hams

Sun data and propagation

Current HF propagation

TODAYS SUN DATA AND HF PROPAGATION

Todays sun data		Latest EIT-304 image // Sun images from NASA
Flux index:	178
Spot number:	185
X-Ray index:	75.2
A index:	10
Kp index:	2.67

Conditions 00-10MHz:	Fair
Conditions 10-20MHz:	Good
Conditions 20-30MHz:	Excellent
We are working on the algorithm, conditions shown here may not correlate with real conditions. The best check is always to power up your HF rig and listen on every band to be sure!

GRAPHICAL SUN DATA HISTORY

PROPAGATION BASED ON WSPRNET* (ALPHA)

Probability of QSO on 13cm between EU and EU is 69%
Probability of QSO on 23cm between NA and NA is 10%
Probability of QSO on 23cm between OC and OC is 21%
Probability of QSO on 23cm between AS and AS is 27%
Probability of QSO on 70cm between AS and AS is 79%
Probability of QSO on 2m between NA and NA is 100%
Probability of QSO on 2m between AS and AS is 75%
Probability of QSO on 6m between NA and NA is 6%
Probability of QSO on 6m between OC and OC is 7%
Probability of QSO on 10m between EU and AF is 71%
Probability of QSO on 10m between NA and EU is 27%
Probability of QSO on 10m between AS and OC is 9%
Probability of QSO on 10m between OC and SA is 1%
Probability of QSO on 10m between AS and EU is 3%
Probability of QSO on 10m between NA and SA is 26%
Probability of QSO on 10m between OC and EU is 24%
Probability of QSO on 10m between SA and NA is 20%
Probability of QSO on 10m between NA and AF is 59%
Probability of QSO on 12m between SA and NA is 10%
Probability of QSO on 12m between NA and EU is 8%
Probability of QSO on 12m between OC and AF is 52%
Probability of QSO on 12m between OC and NA is 25%
Probability of QSO on 12m between EU and AF is 51%
Probability of QSO on 12m between AF and EU is 36%
Probability of QSO on 12m between AF and NA is 21%
Probability of QSO on 12m between SA and EU is 6%
Probability of QSO on 12m between NA and AF is 27%
Probability of QSO on 15m between OC and EU is 35%
Probability of QSO on 15m between SA and EU is 1%
Probability of QSO on 15m between SA and AF is 52%
Probability of QSO on 15m between AS and NA is 23%
Probability of QSO on 15m between OC and AF is 13%
Probability of QSO on 15m between OC and NA is 31%
Probability of QSO on 15m between EU and AF is 46%
Probability of QSO on 15m between EU and AS is 20%
Probability of QSO on 15m between AS and OC is 34%
Probability of QSO on 15m between EU and NA is 20%
Probability of QSO on 15m between NA and AF is 44%
Probability of QSO on 15m between NA and EU is 15%
Probability of QSO on 15m between OC and AS is 24%
Probability of QSO on 17m between NA and EU is 10%
Probability of QSO on 17m between AF and EU is 25%
Probability of QSO on 17m between AS and NA is 16%
Probability of QSO on 17m between AS and OC is 40%
Probability of QSO on 17m between NA and AF is 51%
Probability of QSO on 17m between OC and AF is 93%
Probability of QSO on 17m between OC and EU is 45%
Probability of QSO on 17m between OC and NA is 47%
Probability of QSO on 17m between EU and AS is 4%
Probability of QSO on 17m between SA and AF is 15%
Probability of QSO on 17m between SA and EU is 10%
Probability of QSO on 17m between AF and OC is 47%
Probability of QSO on 17m between EU and AF is 41%
Probability of QSO on 17m between AF and NA is 20%
Probability of QSO on 20m between AF and EU is 19%
Probability of QSO on 20m between NA and SA is 1%
Probability of QSO on 20m between OC and AS is 0%
Probability of QSO on 20m between AS and NA is 8%
Probability of QSO on 20m between OC and AF is 8%
Probability of QSO on 20m between OC and EU is 31%
Probability of QSO on 20m between NA and EU is 18%
Probability of QSO on 20m between EU and NA is 20%
Probability of QSO on 20m between SA and NA is 20%
Probability of QSO on 20m between SA and AF is 47%
Probability of QSO on 20m between SA and EU is 26%
Probability of QSO on 20m between EU and AS is 8%
Probability of QSO on 20m between OC and NA is 83%
Probability of QSO on 20m between AS and EU is 19%
Probability of QSO on 20m between EU and SA is 12%
Probability of QSO on 20m between EU and AF is 55%
Probability of QSO on 20m between NA and AF is 51%
Probability of QSO on 30m between AF and SA is 10%
Probability of QSO on 30m between EU and AF is 41%
Probability of QSO on 30m between EU and AS is 16%
Probability of QSO on 30m between AS and AF is 24%
Probability of QSO on 30m between NA and AF is 27%
Probability of QSO on 30m between OC and AF is 6%
Probability of QSO on 30m between EU and NA is 19%
Probability of QSO on 30m between NA and EU is 2%
Probability of QSO on 30m between AS and EU is 31%
Probability of QSO on 30m between OC and NA is 66%
Probability of QSO on 40m between AS and AF is 17%
Probability of QSO on 40m between SA and EU is 100%
Probability of QSO on 40m between EU and AS is 18%
Probability of QSO on 40m between OC and NA is 21%
Probability of QSO on 40m between AS and EU is 24%
Probability of QSO on 40m between EU and AF is 46%
Probability of QSO on 40m between NA and AF is 25%
Probability of QSO on 60m between EU and AF is 29%
Probability of QSO on 80m between AS and EU is 6%
Probability of QSO on 80m between EU and AF is 17%
Probability of QSO on 160m between EU and NA is 1%
Probability of QSO on 160m between SA and EU is 52%

* Propagation probability based on data from WSPRnet (Weak Signal Propagation Reporter Network) Spot Database

PROPAGATION BASED ON DX-CLUSTER

Conditions at 00-10MHz (30%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	1%	1%	1%	0%	0%	0%
AS	0%	0%	1%	0%	0%	0%
EU	1%	2%	37%	3%	0%	0%
NA	0%	0%	7%	44%	0%	2%
OC	0%	0%	0%	0%	0%	0%
SA	0%	1%	1%	0%	0%	2%

Conditions at 10-20MHz (39%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	0%	0%	1%	1%	0%	0%
AS	1%	2%	1%	2%	1%	0%
EU	3%	7%	6%	17%	1%	3%
NA	2%	10%	13%	30%	0%	1%
OC	0%	0%	1%	0%	1%	0%
SA	1%	2%	4%	2%	0%	1%

Conditions at 20-30MHz (29%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	0%	2%	0%	4%	0%	1%
AS	1%	1%	0%	6%	1%	3%
EU	0%	1%	1%	6%	1%	2%
NA	1%	11%	7%	22%	5%	14%
OC	0%	0%	1%	2%	1%	0%
SA	1%	4%	4%	5%	1%	4%

Conditions at 50-54MHz (4%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	0%	0%	0%	0%	0%	0%
AS	0%	0%	0%	0%	0%	3%
EU	3%	0%	0%	0%	0%	11%
NA	0%	0%	0%	14%	22%	22%
OC	0%	0%	0%	0%	0%	0%
SA	3%	0%	3%	5%	9%	9%

HISTORICAL PROPAGATION DATA

Last 30 days of HF propagation

2025-03-17 00:00:00	178	185	75.2	0	12	2.33	Fair	Good	Excellent
2025-03-16 12:00:00				0			Fair	Normal	Excellent
2025-03-16 00:00:00	180	147	75.2	0	18	1.33	Fair	Good	Good
2025-03-15 12:00:00	180	147	75.2	0	24	3.67	Fair	Good	Good
2025-03-15 00:00:00	175	160	75.2	0	24	3.67	Fair	Good	Good
2025-03-14 12:00:00	175	160	75.2	0	42	3.00	Fair	Good	Good
2025-03-14 00:00:00	160	160	75.2	0	40	5.00	Fair	Normal	Normal
2025-03-13 12:00:00	160	160	75.2	0	32	4.67	Fair	Normal	Normal
2025-03-13 00:00:00	161	128	75.2	0	32	5.00	Fair	Normal	Normal
2025-03-12 12:00:00	161	128	75.2	0	10	4.00	Fair	Good	Good
2025-03-12 00:00:00				0			Good	Good	Good
2025-03-11 12:00:00	149	74	75.2	0	10	2.67	Good	Good	Good
2025-03-11 00:00:00	148	73	75.2	0	10	2.33	Good	Good	Good
2025-03-10 12:00:00	148	73	75.2	0	35	2.67	Normal	Normal	Normal
2025-03-10 00:00:00	148	90	75.2	0	35	3.33	Fair	Good	Good
2025-03-09 12:00:00	148	90	75.2	0	21	5.67	Fair	Good	Good
2025-03-09 00:00:00	147	109	75.2	0	21	4.67	Fair	Normal	Normal
2025-03-08 12:00:00	147	109	75.2	0	10	3.33	Normal	Excellent	Excellent
2025-03-08 00:00:00	150	139	75.2	0	10	1.33	Normal	Excellent	Excellent
2025-03-07 12:00:00	150	139	75.2	0	7	3.33	Normal	Excellent	Excellent
2025-03-07 00:00:00	157	147	75.2	0	7	1.67	Normal	Excellent	Excellent
2025-03-06 12:00:00	157	147	75.2	0	13	2.00	Fair	Good	Good
2025-03-06 00:00:00	160	134	75.2	0	13	2.33	Fair	Good	Good
2025-03-05 12:00:00	160	134	75.2	0	11	2.67	Normal	Excellent	Excellent
2025-03-05 00:00:00				0			Fair	Good	Good
2025-03-04 12:00:00				0			Normal	Excellent	Excellent
2025-03-04 00:00:00	140	139	75.2	0	5	1.33	Normal	Excellent	Excellent
2025-03-03 12:00:00	140	139	75.2	0	6	1.67	Normal	Excellent	Excellent
2025-03-03 00:00:00	145	105	75.2	0	6	0.67	Good	Excellent	Excellent
2025-03-02 12:00:00	145	105	75.2	0	19	1.67	Fair	Good	Good
2025-03-02 00:00:00	155	104	75.2	0	19	3.00	Fair	Good	Good
2025-03-01 12:00:00	155	104	75.2	0	32	4.00	Fair	Normal	Normal
2025-03-01 00:00:00	170	129	75.2	0	32	3.00	Fair	Good	Good
2025-02-28 12:00:00	170	129	75.2	0	32	3.67	Fair	Good	Good
2025-02-28 00:00:00	180	123	75.2	0	32	4.33	Fair	Normal	Normal
2025-02-27 12:00:00				0			Fair	Good	Good
2025-02-27 00:00:00	190	155	75.2	0	16	2.33	Normal	Excellent	Excellent
2025-02-26 12:00:00	190	155	75.2	0	8	2.67	Good	Excellent	Excellent
2025-02-26 00:00:00	203	182	75.2	0	8	3.33	Normal	Excellent	Excellent
2025-02-25 12:00:00	203	182	75.2	0	14	1.67	Fair	Good	Excellent
2025-02-25 00:00:00	210	186	75.2	0	14	2.67	Fair	Good	Excellent
2025-02-24 12:00:00	210	186	75.2	0	7	3.00	Normal	Excellent	Excellent
2025-02-24 00:00:00	199	215	75.2	0	7	3.00	Normal	Excellent	Excellent
2025-02-23 12:00:00	199	215	75.2	0	6	1.00	Good	Excellent	Excellent
2025-02-23 00:00:00	197	138	75.2	0	6	2.33	Good	Excellent	Excellent
2025-02-22 12:00:00	197	138	75.2	0	6	1.33	Good	Excellent	Excellent
2025-02-22 00:00:00	184	123	75.2	0	6	2.00	Good	Excellent	Excellent
2025-02-21 12:00:00	184	123	75.2	0	7	1.33	Good	Excellent	Excellent
2025-02-21 00:00:00	178	119	75.2	0	7	0.67	Good	Excellent	Excellent
2025-02-20 12:00:00	178	119	75.2	0	20	0.67	Normal	Excellent	Excellent
2025-02-20 00:00:00	178	187	75.2	0	20	3.33	Fair	Normal	Excellent
2025-02-19 12:00:00	178	187	75.2	0	14	1.67	Fair	Normal	Excellent
2025-02-19 00:00:00	185	218	A0.0	0	14	4.67	Fair	Normal	Excellent
2025-02-18 12:00:00	185	218	75.2	0	15	1.00	Normal	Excellent	Excellent
2025-02-18 00:00:00				0			Fair	Good	Excellent
2025-02-17 12:00:00				0			Fair	Good	Excellent
2025-02-17 00:00:00	184	153	75.2	0	18	4.00	Fair	Good	Good
2025-02-16 12:00:00	184	153	75.2	0	28	3.33	Normal	Excellent	Excellent
2025-02-16 00:00:00	179	111	75.2	0	28	4.33	Fair	Normal	Normal
2025-02-15 12:00:00				0			Fair	Normal	Normal
Date and Time▲	Flux idx.▲	Spot num.▲	X-Ray idx.▲	X-Ray num▲	A-Index▲	K-Index▲	00-10MHz▲	10-20MHz▲	20-30MHz▲