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:	110
Spot number:	102
X-Ray index:	104.7
A index:	29
Kp index:	2.67

Conditions 00-10MHz:	Closed
Conditions 10-20MHz:	Poor
Conditions 20-30MHz:	Closed
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 23cm between AS and AS is 100%
Probability of QSO on 70cm between AS and AS is 53%
Probability of QSO on 2m between AS and AS is 79%
Probability of QSO on 2m between OC and OC is 0%
Probability of QSO on 6m between EU and EU is 19%
Probability of QSO on 6m between NA and NA is 67%
Probability of QSO on 10m between AF and NA is 93%
Probability of QSO on 10m between EU and SA is 12%
Probability of QSO on 10m between AS and SA is 8%
Probability of QSO on 10m between EU and AF is 20%
Probability of QSO on 12m between EU and AF is 28%
Probability of QSO on 12m between SA and NA is 17%
Probability of QSO on 12m between AS and AF is 6%
Probability of QSO on 15m between EU and AS is 12%
Probability of QSO on 15m between NA and AF is 5%
Probability of QSO on 15m between SA and NA is 5%
Probability of QSO on 15m between AS and OC is 15%
Probability of QSO on 15m between EU and NA is 4%
Probability of QSO on 15m between EU and AF is 48%
Probability of QSO on 15m between OC and NA is 19%
Probability of QSO on 15m between OC and EU is 1%
Probability of QSO on 15m between NA and OC is 33%
Probability of QSO on 15m between AS and AF is 25%
Probability of QSO on 17m between AS and OC is 8%
Probability of QSO on 17m between EU and AS is 8%
Probability of QSO on 17m between AS and AF is 23%
Probability of QSO on 17m between NA and AS is 15%
Probability of QSO on 17m between OC and NA is 4%
Probability of QSO on 17m between EU and AF is 25%
Probability of QSO on 20m between SA and AF is 55%
Probability of QSO on 20m between OC and AS is 1%
Probability of QSO on 20m between AS and EU is 26%
Probability of QSO on 20m between AF and OC is 29%
Probability of QSO on 20m between NA and AS is 75%
Probability of QSO on 20m between AS and AF is 46%
Probability of QSO on 20m between EU and AS is 7%
Probability of QSO on 20m between NA and SA is 100%
Probability of QSO on 20m between SA and NA is 17%
Probability of QSO on 20m between EU and AF is 41%
Probability of QSO on 20m between NA and OC is 15%
Probability of QSO on 20m between EU and NA is 11%
Probability of QSO on 20m between NA and AF is 15%
Probability of QSO on 20m between AF and EU is 4%
Probability of QSO on 30m between EU and OC is 4%
Probability of QSO on 30m between EU and AF is 29%
Probability of QSO on 30m between AS and EU is 8%
Probability of QSO on 30m between OC and NA is 53%
Probability of QSO on 40m between EU and AF is 4%
Probability of QSO on 40m between AF and OC is 19%
Probability of QSO on 40m between AF and AS is 15%
Probability of QSO on 40m between OC and NA is 31%
Probability of QSO on 80m between OC and AF is 1%
Probability of QSO on 80m between NA and EU is 38%
Probability of QSO on 80m between EU and NA is 100%
Probability of QSO on 80m between AS and EU is 1%
Probability of QSO on 80m between OC and NA is 10%

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

PROPAGATION BASED ON DX-CLUSTER

Conditions at 00-10MHz (34%) 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%	1%	2%	0%	1%	0%
EU	0%	4%	78%	0%	2%	0%
NA	0%	0%	0%	9%	0%	0%
OC	0%	0%	0%	0%	0%	0%
SA	0%	0%	0%	0%	0%	0%

Conditions at 10-20MHz (42%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	2%	0%	1%	0%	0%	0%
AS	1%	5%	2%	0%	0%	0%
EU	3%	13%	36%	9%	2%	0%
NA	1%	1%	8%	19%	1%	0%
OC	0%	0%	0%	0%	0%	0%
SA	0%	1%	0%	0%	0%	0%

Conditions at 20-30MHz (25%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	1%	0%	0%	0%	0%	0%
AS	0%	1%	2%	0%	0%	0%
EU	15%	5%	14%	8%	2%	20%
NA	3%	1%	8%	6%	0%	2%
OC	0%	0%	2%	0%	0%	0%
SA	1%	0%	8%	1%	0%	5%

Conditions at 50-54MHz (1%) 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%	0%
EU	0%	0%	100%	0%	0%	0%
NA	0%	0%	0%	0%	0%	0%
OC	0%	0%	0%	0%	0%	0%
SA	0%	0%	0%	0%	0%	0%

HISTORICAL PROPAGATION DATA

Last 30 days of HF propagation

Date and Time	Flux idx.	Spot num.	X-Ray idx.	X-Ray num	A-Index	K-Index	00-10MHz	10-20MHz	20-30MHz
2026-09-09 12:00:00	110	102	104.7	0	29	2.67	Closed	Poor	Closed
2026-09-09 00:00:00	110	103	104.7	0	29	3.00	Closed	Poor	Closed
2026-09-08 12:00:00	110	103	104.7	0	19	4.33	Closed	Closed	Closed
2026-09-08 00:00:00	110	83	104.7	0	19	4.33	Closed	Closed	Closed
2026-09-07 12:00:00	110	83	104.7	0	5	4.00	Closed	Poor	Closed
2026-09-07 00:00:00	111	70	104.7	0	5	1.67	Fair	Poor	Closed
2026-09-06 12:00:00	111	70	104.7	0	6	1.33	Fair	Poor	Closed
2026-09-06 00:00:00	110	72	104.7	0	6	1.00	Fair	Fair	Fair
2026-09-05 12:00:00	110	72	104.7	0	4	2.00	Fair	Poor	Closed
2026-09-05 00:00:00	108	37	104.7	0	4	0.33	Fair	Fair	Fair
2026-09-04 12:00:00	108	37	104.7	0	6	1.67	Fair	Poor	Closed
2026-09-04 00:00:00	102	73	104.7	0	6	1.33	Fair	Poor	Closed
2026-09-03 12:00:00	102	73	104.7	0	6	1.00	Fair	Fair	Fair
2026-09-03 00:00:00	101	55	104.7	0	6	1.67	Fair	Poor	Closed
2026-09-02 12:00:00	101	55	104.7	0	7	2.00	Fair	Poor	Closed
2026-09-02 00:00:00	107	81	104.7	0	7	1.67	Poor	Fair	Fair
2026-09-01 12:00:00	107	81	104.7	0	12	2.67	Poor	Fair	Fair
2026-09-01 00:00:00	107	74	104.7	0	12	1.00	Fair	Fair	Fair
2026-08-31 12:00:00	107	74	104.7	0	15	3.33	Poor	Closed	Closed
2026-08-31 00:00:00	111	73	104.7	0	15	2.00	Poor	Closed	Closed
2026-08-30 12:00:00	111	73	104.7	0	17	3.67	Poor	Closed	Closed
2026-08-30 00:00:00	116	92	104.7	0	17	2.00	Closed	Poor	Closed
2026-08-29 12:00:00	116	92	104.7	0	15	3.00	Closed	Poor	Closed
2026-08-29 00:00:00	122	76	104.7	0	15	4.33	Fair	Fair	Fair
2026-08-28 12:00:00	122	76	104.7	0	4	1.67	Good	Good	Good
2026-08-28 00:00:00	131	99	104.7	0	4	1.33	Normal	Excellent	Excellent
2026-08-27 12:00:00	131	99	104.7	0	3	0.67	Good	Excellent	Excellent
2026-08-27 00:00:00	132	83	104.7	0	3	0.67	Good	Excellent	Excellent
2026-08-26 12:00:00	132	83	104.7	0	4	1.00	Good	Excellent	Excellent
2026-08-26 00:00:00	143	84	104.7	0	4	0.33	Good	Excellent	Excellent
2026-08-25 12:00:00	143	84	104.7	0	6	1.00	Good	Excellent	Excellent
2026-08-25 00:00:00	128	73	104.7	0	6	3.00	Good	Good	Good
2026-08-24 12:00:00	128	73	104.7	0	6	0.67	Excellent	Excellent	Excellent
2026-08-24 00:00:00	124	87	104.7	0	6	1.67	Normal	Excellent	Excellent
2026-08-23 12:00:00	124	87	104.7	0	4	2.00	Normal	Excellent	Excellent
2026-08-23 00:00:00	126	59	104.7	0	4	0.67	Excellent	Excellent	Excellent
2026-08-22 12:00:00	126	59	104.7	0	8	1.33	Good	Good	Good
2026-08-22 00:00:00	125	72	104.7	0	8	1.67	Good	Good	Good
2026-08-21 12:00:00	125	72	104.7	0	11	1.67	Good	Good	Good
2026-08-21 00:00:00	126	78	104.7	0	11	2.67	Good	Good	Good
2026-08-20 12:00:00	126	78	104.7	0	20	2.00	Normal	Normal	Normal
2026-08-20 00:00:00	125	71	104.7	0	20	3.00	Normal	Normal	Normal
2026-08-19 12:00:00	125	71	104.7	0	25	4.33	Fair	Fair	Fair
2026-08-19 00:00:00	124	76	104.7	0	25	4.00	Fair	Fair	Fair
2026-08-18 12:00:00	124	76	104.7	0	11	2.33	Good	Good	Good
2026-08-18 00:00:00	129	83	104.7	0	11	3.67	Normal	Excellent	Excellent
2026-08-17 12:00:00	129	83	104.7	0	4	1.33	Normal	Excellent	Excellent
2026-08-17 00:00:00	117	111	104.7	0	4	1.00	Fair	Normal	Normal
2026-08-16 12:00:00	117	111	104.7	0	6	1.67	Poor	Fair	Fair
2026-08-16 00:00:00	114	106	104.7	0	6	1.67	Poor	Fair	Fair
2026-08-15 12:00:00	114	106	104.7	0	9	1.33	Poor	Fair	Fair
2026-08-15 00:00:00	108	101	104.7	0	9	1.33	Poor	Fair	Fair
2026-08-14 12:00:00	108	101	104.7	0	7	2.67	Poor	Fair	Fair
2026-08-14 00:00:00	100	82	104.7	0	7	3.00	Poor	Fair	Fair
2026-08-13 12:00:00	100	82	104.7	0	8	1.33	Poor	Fair	Fair
2026-08-13 00:00:00	96	62	104.7	0	8	1.00	Fair	Fair	Fair
2026-08-12 12:00:00	96	62	104.7	0	7	2.00	Fair	Poor	Closed
2026-08-12 00:00:00	95	55	104.7	0	7	1.33	Fair	Poor	Closed
2026-08-11 12:00:00	95	55	104.7	0	5	2.00	Fair	Poor	Closed
2026-08-11 00:00:00	94	41	104.7	0	5	1.67	Fair	Poor	Closed