Solar Conditions & Ham Radio Propagation

HF Band Info

80m-40mFairGood
3.5 - 7.3 MHz
30m-20mFairFair
10.1 - 14.35 MHz
17m-15mPoorPoor
18.068 - 21.45 MHz
12m-10mPoorPoor
24.89 - 29.7 MHz

VHF Propagation

2m Band E-SkipClosed
Aurora ConditionsClosed

Solar Conditions

Solar Flux
70

Overall Solar Activity on 10.7cm. From 62.5 to 300, higher better.
Sunspot Number
0

Derived from num of sunspots + groups. From 0 to 250, higher better.
Solar Wind
353.3

Speed of Solar Wind in KM/s. Typically 0-1000, lower better
Geomagnetic Storm
Very Quiet

Overall activity of Earth's magnetic field. Based on K-Index.
A-Index
3

Average Geomagnetic Activity
K-Index
1

Disturbance in Horiz. Component of Geomagnetic Field
Aurora Index
2

Higher values cause greater auroral events. From 0 to 10++.
Aurora Latitude
66.5

Furthest latitude of Aurora activity
X-Ray
A2.4

Intensity of X-Rays in Ionosphere. A, B, C, M, X Indicates Magnitude
304 Å Value
94.0

Total Solar Radiation at 30.4nm (Emitted by Ionized Helium)
Proton Flux
0.237

Density of Charged Protons in Solar Wind. Impacts E-Layer.
Electron Flux
307

Density of Charged Electrons in Solar Wind. Impacts E-Layer.
Noise Floor
S0-S1

Noise Contributed by Solar Activity.
F2 Crit. Frequency
2.6 MHz

Highest Frequency that reflects back from F2 Layer.
Maximum Usable Frequency
8.09 MHz

Maximum Usable Frequency for Sky-Wave Propagation.