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:	73
Spot number:	14
X-Ray index:	A8.6
A index:	47
Kp index:	3

Conditions 00-10MHz:	Poor
Conditions 10-20MHz:	Closed
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 70cm between OC and OC is 8%
Probability of QSO on 70cm between NA and NA is 2%
Probability of QSO on 6m between EU and EU is 51%
Probability of QSO on 20m between EU and AF is 9%
Probability of QSO on 20m between AS and EU is 21%
Probability of QSO on 20m between AS and AF is 13%
Probability of QSO on 30m between EU and NA is 37%
Probability of QSO on 40m between EU and AF is 12%
Probability of QSO on 60m between EU and AF is 2%
Probability of QSO on 630m between NA and SA is 1%

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

PROPAGATION BASED ON DX-CLUSTER

Conditions at 00-10MHz (63%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	1%	0%	0%	0%	0%	1%
AS	0%	3%	0%	1%	0%	1%
EU	2%	8%	32%	3%	2%	7%
NA	2%	1%	9%	13%	0%	4%
OC	0%	0%	3%	1%	5%	0%
SA	1%	1%	5%	3%	0%	1%

Conditions at 10-20MHz (32%) 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	2%	16%	3%	0%	2%	0%
EU	5%	34%	8%	0%	5%	3%
NA	0%	0%	0%	3%	11%	2%
OC	0%	2%	0%	0%	7%	0%
SA	0%	1%	0%	0%	0%	0%

Conditions at 20-30MHz (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%	7%	0%	0%	47%	0%
EU	0%	0%	7%	0%	0%	0%
NA	0%	0%	0%	0%	0%	0%
OC	0%	0%	0%	0%	40%	0%
SA	0%	0%	0%	0%	0%	0%

Conditions at 50-54MHz (2%) 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%	58%	0%	0%	0%
NA	0%	0%	0%	29%	0%	0%
OC	0%	0%	0%	0%	15%	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
2018-04-21 00:00:00	71	14	B1.3	113	49	5	Closed	Closed	Closed
2018-04-20 12:00:00	71	14	A6.1	61	3	6	Closed	Closed	Closed
2018-04-20 00:00:00	71	0	A5.1	51	5	1	Fair	Fair	Fair
2018-04-19 12:00:00	71	0	A4.3	43	6	0	Fair	Fair	Fair
2018-04-19 00:00:00	69	0	A6.9	69	7	1	Fair	Fair	Fair
2018-04-18 12:00:00	69	0	A3.1	31	4	1	Fair	Fair	Fair
2018-04-18 00:00:00	69	0	A2.6	26	4	0	Fair	Fair	Fair
2018-04-17 12:00:00	69	0	A1.9	19	3	1	Fair	Fair	Fair
2018-04-17 00:00:00	71	0	A2.4	24	3	0	Fair	Fair	Fair
2018-04-16 12:00:00	71	0	A1.5	15	6	0	Fair	Fair	Fair
2018-04-16 00:00:00	70	11	A2.3	23	6	1	Fair	Fair	Fair
2018-04-15 12:00:00	70	11	A2.0	20	6	1	Fair	Fair	Fair
2018-04-15 00:00:00	70	14	A1.7	17	6	2	Fair	Poor	Closed
2018-04-14 12:00:00	70	14	A1.3	13	9	0	Fair	Fair	Fair
2018-04-14 00:00:00	70	13	A2.7	27	9	2	Fair	Poor	Closed
2018-04-13 12:00:00	70	13	A1.9	19	9	2	Fair	Poor	Closed
2018-04-13 00:00:00	68	0	A2.9	29	11	2	Fair	Poor	Closed
2018-04-12 12:00:00	68	0	A1.9	19	14	3	Poor	Closed	Closed
2018-04-12 00:00:00	69	0	A2.4	24	18	1	Fair	Poor	Closed
2018-04-11 12:00:00	69	0	A1.8	18	18	4	Closed	Closed	Closed
2018-04-11 00:00:00	69	0	A2.2	22	20	2	Poor	Closed	Closed
2018-04-10 12:00:00	69	0	A1.7	17	10	4	Poor	Closed	Closed
2018-04-10 00:00:00	68	0	A2.0	20	8	2	Fair	Poor	Closed
2018-04-09 12:00:00	68	0	A1.1	11	5	3	Fair	Poor	Closed
2018-04-09 00:00:00	67	0	A1.7	17	5	2	Fair	Poor	Closed
2018-04-08 12:00:00	67	0	A1.1	11	5	0	Fair	Fair	Fair
2018-04-08 00:00:00	67	0	A1.2	12	5	0	Fair	Fair	Fair
2018-04-07 12:00:00	67	0	<A1.0	0	4	1	Fair	Fair	Fair
2018-04-07 00:00:00	66	0	A1.3	13	5	1	Fair	Fair	Fair
2018-04-06 12:00:00	66	0	A1.2	12	9	1	Fair	Fair	Fair
2018-04-06 00:00:00	69	0	A1.2	12	8	3	Fair	Poor	Closed
2018-04-05 12:00:00	69	0	<A1.0	0	5	1	Fair	Fair	Fair
2018-04-05 00:00:00	68	0	A1.5	15	5	1	Fair	Fair	Fair
2018-04-04 12:00:00	68	0	A1.2	12	4	1	Fair	Fair	Fair
2018-04-04 00:00:00	68	0	A2.0	20	4	0	Fair	Fair	Fair
2018-04-03 12:00:00	68	0	<A1.0	0	5	2	Fair	Poor	Closed
2018-04-03 00:00:00	69	0	A1.4	14	6	1	Fair	Fair	Fair
2018-04-02 12:00:00	69	0	A2.1	21	5	1	Fair	Fair	Fair
2018-04-02 00:00:00	69	12	A2.2	22	5	1	Fair	Fair	Fair
2018-04-01 12:00:00	69	12	<A1.0	0	7	1	Fair	Fair	Fair
2018-04-01 00:00:00	69	11	A2.6	26	8	1	Fair	Fair	Fair
2018-03-31 12:00:00	69	11	A4.9	49	5	2	Fair	Poor	Closed
2018-03-31 00:00:00	69	0	A2.2	22	5	1	Fair	Fair	Fair
2018-03-30 12:00:00	69	0	A2.9	29	4	1	Fair	Fair	Fair
2018-03-30 00:00:00	69	0	A3.6	36	7	1	Fair	Fair	Fair
2018-03-29 12:00:00	69	0	A2.4	24	3	1	Fair	Fair	Fair
2018-03-29 00:00:00	68	0	A2.8	28	3	0	Fair	Fair	Fair
2018-03-28 12:00:00	68	0	A8.4	84	9	1	Fair	Fair	Fair
2018-03-28 00:00:00	68	0	A3.8	38	10	0	Fair	Fair	Fair
2018-03-27 12:00:00	68	0	A1.1	11	12	3	Fair	Poor	Closed
2018-03-27 00:00:00	68	0	A2.2	22	12	2	Fair	Poor	Closed
2018-03-26 12:00:00	68	0	<A1.0	0	16	3	Poor	Closed	Closed
2018-03-26 00:00:00	68	0	A1.9	19	18	2	Poor	Closed	Closed
2018-03-25 12:00:00	68	0	<A1.0	0	9	3	Fair	Poor	Closed
2018-03-25 00:00:00	68	0	A1.8	18	11	2	Fair	Poor	Closed
2018-03-24 12:00:00	68	0	<A1.0	0	16	2	Poor	Closed	Closed
2018-03-24 00:00:00	69	0	A2.6	26	16	4	Closed	Closed	Closed
2018-03-23 12:00:00	69	0	<A1.0	0	7	2	Fair	Poor	Closed
2018-03-23 00:00:00	69	0	A1.3	13	7	3	Fair	Poor	Closed
2018-03-22 12:00:00	69	0	<A1.0	0	4	1	Fair	Fair	Fair