Current communications state
VHF / UHF
Tropo / ducting
Satellite / GNSS
Solar-to-radio impact
Solar state: C_LEVEL. Current GOES level is C1.4. No M/X level current event in the GOES strip, but keep monitoring.
APMSS checks GOES flux, flare activity, D-RAP/HF absorption, Kp, proton conditions, CME windows and source health where available. Solar activity can affect HF, high-latitude paths, satellite/GNSS exposure and operational confidence.
Frequency explanation
Band names are translated into MHz where possible. For example, 20m refers to the HF band around 14 MHz. VHF and UHF channels are usually local or line-of-sight unless repeaters, satellite, tropo, aurora or other propagation mechanisms are confirmed.
Evidence discipline
Confirmed: evidence supports promotion.
Good support: usable evidence exists, but users should still verify locally.
Watch only: ingredients exist, but not enough confirmation to rely on it.
Not confirmed: APMSS does not currently support relying on this path.
Source unavailable / source limited: data is missing, stale, failed or not mapped. This is not the same as saying the path is closed.
Sources used
| HF: hf_frequency_route_specific_summary_latest.csv |
| VHF/UHF: apmss_rf_vhf_uhf_confirmation_gate_latest.csv |
| Satellite: apmss_rf_satellite_operator_pass_windows_v0_3_latest.json |
| Solar: goes_live_strip.json |