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:	220
Spot number:	185
X-Ray index:	75.2
A index:	6
Kp index:	2.00

Conditions 00-10MHz:	Normal
Conditions 10-20MHz:	Excellent
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 72%
Probability of QSO on 70cm between AS and AS is 51%
Probability of QSO on 2m between AS and AS is 26%
Probability of QSO on 4m between EU and EU is 13%
Probability of QSO on 6m between OC and OC is 56%
Probability of QSO on 6m between NA and NA is 49%
Probability of QSO on 10m between EU and AF is 65%
Probability of QSO on 10m between NA and AS is 67%
Probability of QSO on 10m between NA and EU is 45%
Probability of QSO on 10m between EU and AS is 25%
Probability of QSO on 10m between EU and NA is 29%
Probability of QSO on 10m between NA and OC is 40%
Probability of QSO on 10m between NA and AF is 25%
Probability of QSO on 10m between AS and AF is 44%
Probability of QSO on 12m between NA and OC is 14%
Probability of QSO on 12m between NA and AF is 38%
Probability of QSO on 12m between NA and EU is 12%
Probability of QSO on 12m between EU and AF is 81%
Probability of QSO on 12m between AS and AF is 36%
Probability of QSO on 12m between AS and EU is 20%
Probability of QSO on 15m between EU and OC is 1%
Probability of QSO on 15m between NA and AF is 53%
Probability of QSO on 15m between AF and NA is 7%
Probability of QSO on 15m between NA and OC is 2%
Probability of QSO on 15m between AS and OC is 11%
Probability of QSO on 15m between OC and AF is 33%
Probability of QSO on 15m between OC and AS is 0%
Probability of QSO on 15m between EU and AF is 63%
Probability of QSO on 15m between EU and SA is 33%
Probability of QSO on 15m between AS and SA is 29%
Probability of QSO on 15m between AS and AF is 53%
Probability of QSO on 15m between SA and AF is 52%
Probability of QSO on 15m between SA and EU is 12%
Probability of QSO on 15m between SA and NA is 21%
Probability of QSO on 15m between AS and EU is 20%
Probability of QSO on 15m between NA and EU is 5%
Probability of QSO on 15m between AF and OC is 56%
Probability of QSO on 17m between EU and SA is 18%
Probability of QSO on 17m between SA and NA is 17%
Probability of QSO on 17m between NA and AF is 52%
Probability of QSO on 17m between EU and AF is 56%
Probability of QSO on 17m between NA and OC is 2%
Probability of QSO on 17m between OC and AF is 6%
Probability of QSO on 17m between AS and AF is 70%
Probability of QSO on 17m between EU and OC is 2%
Probability of QSO on 17m between OC and NA is 0%
Probability of QSO on 20m between EU and AF is 50%
Probability of QSO on 20m between SA and OC is 24%
Probability of QSO on 20m between SA and NA is 32%
Probability of QSO on 20m between NA and AF is 39%
Probability of QSO on 20m between EU and SA is 10%
Probability of QSO on 20m between AS and NA is 26%
Probability of QSO on 20m between OC and NA is 13%
Probability of QSO on 20m between SA and EU is 21%
Probability of QSO on 20m between OC and EU is 12%
Probability of QSO on 20m between OC and AF is 36%
Probability of QSO on 20m between AS and OC is 2%
Probability of QSO on 20m between NA and AS is 15%
Probability of QSO on 20m between AS and SA is 14%
Probability of QSO on 20m between NA and EU is 3%
Probability of QSO on 20m between EU and NA is 19%
Probability of QSO on 20m between EU and OC is 14%
Probability of QSO on 30m between AS and SA is 12%
Probability of QSO on 30m between AS and EU is 22%
Probability of QSO on 30m between OC and EU is 17%
Probability of QSO on 30m between EU and AF is 13%
Probability of QSO on 30m between EU and SA is 45%
Probability of QSO on 30m between EU and OC is 7%
Probability of QSO on 30m between EU and AS is 6%
Probability of QSO on 30m between NA and OC is 3%
Probability of QSO on 30m between NA and AF is 31%
Probability of QSO on 30m between OC and NA is 24%
Probability of QSO on 40m between OC and NA is 47%
Probability of QSO on 40m between OC and SA is 18%
Probability of QSO on 40m between NA and EU is 12%
Probability of QSO on 40m between EU and SA is 34%
Probability of QSO on 40m between EU and NA is 1%
Probability of QSO on 40m between SA and NA is 16%
Probability of QSO on 40m between EU and AF is 23%
Probability of QSO on 40m between NA and AF is 19%
Probability of QSO on 40m between SA and AF is 11%
Probability of QSO on 40m between AF and NA is 100%
Probability of QSO on 40m between SA and EU is 33%
Probability of QSO on 80m between OC and NA is 28%
Probability of QSO on 80m between EU and NA is 100%

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

PROPAGATION BASED ON DX-CLUSTER

Conditions at 00-10MHz (25%) 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	2%	0%	84%	3%	0%	3%
NA	3%	0%	2%	2%	0%	0%
OC	0%	0%	1%	0%	0%	1%
SA	0%	0%	0%	0%	0%	2%

Conditions at 10-20MHz (52%) 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%	1%	1%	0%
EU	2%	2%	38%	17%	12%	4%
NA	1%	1%	14%	2%	4%	0%
OC	0%	0%	3%	1%	2%	0%
SA	0%	0%	1%	0%	1%	0%

Conditions at 20-30MHz (20%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	0%	0%	1%	0%	0%	0%
AS	1%	1%	4%	1%	2%	1%
EU	10%	23%	19%	9%	12%	7%
NA	0%	0%	4%	0%	4%	0%
OC	1%	1%	2%	0%	1%	0%
SA	0%	0%	0%	0%	0%	1%

Conditions at 50-54MHz (5%) 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%	7%	4%	0%	0%	0%
EU	0%	10%	75%	0%	0%	0%
NA	0%	0%	0%	0%	0%	0%
OC	0%	0%	0%	4%	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
2024-05-15 00:00:00	215	207	75.2	0	6	1.00	Good	Excellent	Excellent
2024-05-14 12:00:00	215	207	75.2	0	30	2.00	Fair	Good	Excellent
2024-05-14 00:00:00	222	186	75.2	0	30	3.00	Fair	Good	Excellent
2024-05-13 12:00:00	222	186	75.2	0	54	2.67	Fair	Normal	Excellent
2024-05-13 00:00:00	214	148	75.2	0	54	6.33	Poor	Fair	Fair
2024-05-12 12:00:00	214	148	75.2	0	272	3.67	Fair	Good	Good
2024-05-12 00:00:00	223	156	75.2	0	272	7.33	Fair	Good	Good
2024-05-11 12:00:00	223	156	75.2	0	118	9.00	Closed	Closed	Closed
2024-05-11 00:00:00	233	170	75.2	0	118	9.00	Closed	Closed	Closed
2024-05-10 12:00:00	233	170	75.2	0	6	2.33	Normal	Excellent	Excellent
2024-05-10 00:00:00	227	142	75.2	0	6	2.33	Good	Excellent	Excellent
2024-05-09 12:00:00				0			Good	Excellent	Excellent
2024-05-09 00:00:00	204	144	75.2	0	7	1.33	Good	Excellent	Excellent
2024-05-08 12:00:00	204	144	75.2	0	7	2.67	Good	Excellent	Excellent
2024-05-08 00:00:00	171	148	75.2	0	7	1.67	Normal	Excellent	Excellent
2024-05-07 12:00:00	171	148	75.2	0	15	2.00	Fair	Good	Good
2024-05-07 00:00:00	177	152	75.2	0	15	1.67	Fair	Good	Good
2024-05-06 12:00:00	177	152	75.2	0	12	2.67	Fair	Fair	Fair
2024-05-06 00:00:00	167	136	75.2	0	12	4.33	Fair	Good	Good
2024-05-05 12:00:00				0			Normal	Excellent	Excellent
2024-05-05 00:00:00	156	121	75.2	0	6	3.00	Normal	Excellent	Excellent
2024-05-04 12:00:00	156	121	75.2	0	10	1.00	Good	Excellent	Excellent
2024-05-04 00:00:00	142	125	75.2	0	10	2.00	Normal	Excellent	Excellent
2024-05-03 12:00:00	142	125	75.2	0	44	1.67	Fair	Good	Good
2024-05-03 00:00:00	135	104	75.2	0	44	4.33	Fair	Normal	Normal
2024-05-02 12:00:00	135	104	75.2	0	8	3.33	Normal	Excellent	Excellent
2024-05-02 00:00:00	130	85	75.2	0	8	1.67	Normal	Excellent	Excellent
2024-05-01 12:00:00	130	85	75.2	0	12	0.67	Good	Excellent	Excellent
2024-05-01 00:00:00	138	88	75.2	0	12	4.33	Fair	Good	Good
2024-04-30 12:00:00	138	88	75.2	0	6	1.00	Good	Excellent	Excellent
2024-04-30 00:00:00	140	119	75.2	0	6	1.33	Normal	Excellent	Excellent
2024-04-29 12:00:00	140	119	75.2	0	6	1.33	Normal	Excellent	Excellent
2024-04-29 00:00:00	153	126	75.2	0	6	1.00	Good	Excellent	Excellent
2024-04-28 12:00:00	153	126	75.2	0	12	1.33	Normal	Excellent	Excellent
2024-04-28 00:00:00	153	154	75.2	0	12	2.67	Normal	Excellent	Excellent
2024-04-27 12:00:00	153	154	75.2	0	19	1.33	Fair	Good	Good
2024-04-27 00:00:00	167	196	75.2	0	19	2.00	Fair	Normal	Excellent
2024-04-26 12:00:00	167	196	75.2	0	3	3.00	Fair	Good	Excellent
2024-04-26 00:00:00	199	283	75.2	0	3	1.33	Normal	Excellent	Excellent
2024-04-25 12:00:00	199	283	75.2	0	4	1.33	Normal	Excellent	Excellent
2024-04-25 00:00:00	219	282	75.2	0	4	0.67	Good	Excellent	Excellent
2024-04-24 12:00:00	219	282	75.2	0	8	1.33	Normal	Excellent	Excellent
2024-04-24 00:00:00	227	283	75.2	0	8	2.33	Normal	Excellent	Excellent
2024-04-23 12:00:00	227	283	75.2	0	8	2.00	Normal	Excellent	Excellent
2024-04-23 00:00:00	217	283	75.2	0	8	2.33	Normal	Excellent	Excellent
2024-04-22 12:00:00	217	283	75.2	0	19	2.00	Fair	Good	Excellent
2024-04-22 00:00:00	210	240	75.2	0	19	3.00	Fair	Good	Excellent
2024-04-21 12:00:00	210	240	75.2	0	12	3.33	Normal	Excellent	Excellent
2024-04-21 00:00:00	213	243	75.2	0	12	2.67	Normal	Excellent	Excellent
2024-04-20 12:00:00	213	243	75.2	0	41	3.33	Fair	Good	Excellent
2024-04-20 00:00:00	227	247	75.2	0	41	4.33	Fair	Normal	Excellent
2024-04-19 12:00:00	227	247	75.2	0	4	4.33	Fair	Fair	Fair
2024-04-19 00:00:00	217	199	75.2	0	4	2.00	Normal	Excellent	Excellent
2024-04-18 12:00:00	217	199	75.2	0	7	1.00	Good	Excellent	Excellent
2024-04-18 00:00:00	199	176	75.2	0	7	2.00	Normal	Excellent	Excellent
2024-04-17 12:00:00	199	176	75.2	0	31	1.67	Fair	Good	Excellent
2024-04-17 00:00:00	192	193	75.2	0	31	5.00	Fair	Normal	Excellent
2024-04-16 12:00:00	192	193	75.2	0	8	4.33	Fair	Good	Excellent
2024-04-16 00:00:00				0			Normal	Excellent	Excellent
2024-04-15 12:00:00	178	152	75.2	0	6	1.67	Normal	Excellent	Excellent