DX Propagation

Below you will find charts showing the live conditions around the Earth for radio propagation as well as atmospheric conditions that can affect Ham Radio usage depending on frequency. These are great tools for HF and knowing what the conditions are if you plan on trying to make contacts on a particular day/time.

Live Solar Data

Key for These Charts

The three main items you want to pay attention to are the SFI (Solar Flux Index), the A-Index and the K-Index.

SFI – Summarization of the
Sun’s Radiation Output

A-Index – Daily Average of
Magnetic Activity

K-Index Updated every 3 Hours

70 – Not Good
80 – Good
90 – Better
100+ – Best

A = 0 – 7 Quiet
A = 8 – 15 Unsettled
A = 16 – 29 Active
A = 30 – 49 Minor storm
A = 50 – 99 Major storm
A = 100 – 400 Severe storm

K = 0 Inactive
K = 1 Very quiet
K = 2 Quiet
K = 3 Unsettled
K = 4 Active
K = 5 Minor storm
K = 6 Major storm
K = 7 Severe storm
K = 8 Very severe storm
K = 9 Extremely severe storm

Live PSK Reporter Map

Live DX & Sparadic E Map

Click To: PSK Map

Click To: DX & Sparadic “E” Maps

Real Time DX Maps

HamDash.com

Current MUF & MUF MAP

Live Animated MUF Map

Click To: Animated Map

Please note: These charts are not a 100% accurate representation of the band conditions. They are, however, a basis for what you “can” expect with the band conditions. You may see better or worse results based on your location. The charts are automated and update on their own. They will give you a good idea of the current conditions, but again, they are a baseline, not gospel.

ISS Tracker

ISS Primary Voice & Cross-Band Repeater Frequencies

Direct Crew Contacts & SSTV

Packet Radio (APRS)

Uplink (Transmit): 145.990 MHz (with a continuous tone-coded squelch system [CTCSS] or PL tone of 67.0 Hz)
Downlink (Receive): 437.800 MHz

These frequencies are used for scheduled school contacts, special events, and Slow-Scan Television (SSTV).