APMSS Comms Intelligence Brief

Source-to-impact RF and space-weather operating read. Generated 2026-09-17 14:01:54 UTC.
Overall state
HF FAVOURABLE
Best lane
20m
14.000-14.350 MHz
Route
UK-Europe
Likely useful path
Solar effect
QUIET
B2.5 now / B7.9 recent 3h peak
Satellite
GEOMETRY_ONLY
Pass/frequency guidance state

Current situation

HF is currently the strongest supported lane. Best first working lane: 20m (14.000-14.350 MHz) for UK-Europe. Digital/CW evidence should be treated as stronger than SSB voice unless live voice activity confirms the path.

VHF/UHF: NOT_CONFIRMED. 6m / 50 MHz: NO_CONFIRMATION - No live VHF/UHF confirmation found.; 4m / 70 MHz: NO_CONFIRMATION - No live VHF/UHF confirmation found.; 2m / 144 MHz: NO_CONFIRMATION - No live VHF/UHF confirmation found.; 70cm / 432 MHz: NO_CONFIRMATION - No live VHF/UHF confirmation found.; 23cm / 1296 MHz: NO_CONFIRMATION - No live VHF/UHF confirmation found.; 13cm / 2300 MHz: NO_CONFIRMATION - No live VHF/UHF confirmation found.

Tropo/ducting: NOT_CONFIRMED. Vertical profile is near standard. No confirmed ducting enhancement.

Satellite/GNSS: GEOMETRY_ONLY. Satellite layer has 16 pass-geometry entries but no matched operator frequency plan. Use for awareness only; do not promote as operating guidance.

User advice:
  • Use the strongest supported working lane first.
  • Treat watch-only paths as monitor/test opportunities, not reliable operating routes.
  • Open the detailed frequency/channel pages for your radio type before acting.
  • Open the Solar Dashboard when flare, radio blackout, CME, proton, Kp or GNSS risk is active.

What the labels mean

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.

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.

Solar-to-radio impact

Solar state: QUIET. Current GOES level is B2.5. No active M/X signal in the summary source.

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.

Evidence sources used by this summary

HF: E:\Spaceweather_Reports_Backup\reports\hf_frequency_guidance\hf_frequency_route_specific_summary_latest.csv
VHF/UHF: E:\Spaceweather_Reports_Backup\reports\rf_wideband_overview\apmss_rf_vhf_uhf_confirmation_gate_latest.csv
Tropo: E:\Spaceweather_Reports_Backup\reports\rf_wideband_overview\apmss_rf_tropo_vertical_ducting_latest.json
Satellite: E:\Spaceweather_Reports_Backup\reports\rf_wideband_overview\apmss_rf_satellite_operator_pass_windows_v0_3_latest.json
Solar: E:\Spaceweather_Reports_Backup\reports\goes_live_strip.json
APMSS provides RF reference, propagation intelligence, solar-risk context and situational awareness. It does not authorise transmission, reception, interception or disclosure. Users must comply with all relevant laws, licences, band plans and operating procedures.