Grid HA12 Band Conditions
Localized HF conditions for Maidenhead locator HA12. Coordinating at -87.50°, -37.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
HA12 currently has elevated aurora risk (Kp: 5). High-latitude paths may be degraded.
From the HA12 operating area, work the no sunrise — polar night and no sunset — polar night grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses HA12.
Night operation should keep 20m on watch and move to 40m as the path darkens.
This square sits in a mixed-region footprint and is best used as a planning center for portable, field-day, and home-station band decisions.
- Latitude zone
- high-latitude
- Local phase
- Darkness
- Aurora exposure
- elevated — auroral absorption likely (Kp 5)
- Grayline
- no sunrise — polar night / no sunset — polar night
- Best high band
- 10m
- Nearest city
- the HA12 operating area
● Local Band Quality Scorings
Use this local score for HA12, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from HA12 — the HA12 operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from HA12 to each DX region at SFI 148 / Kp 5, and a current verdict. "Open now" means a suitable band is scoring well on that path; "Try ~HH:MM" points at the next far-end grayline. Band picks and status are a planning heuristic, not a measurement.
| Target | Distance | Beam | Bands to try | Status |
|---|---|---|---|---|
| Oceania | 4,317 mi | 187° | 10m, 15m, 20m | Open now |
| Southern Africa | 4,345 mi | 64° | 40m, 20m | Marginal now |
| South America | 5,021 mi | 339° | 40m, 20m | Marginal now |
| South Asia | 7,810 mi | 114° | 40m, 20m | Try ~00:18 UTC |
| North America | 8,827 mi | 301° | 40m, 20m | Marginal now |
| East Asia / Japan | 8,878 mi | 175° | 40m, 20m | Marginal now |
| Europe | 9,553 mi | 45° | 40m, 20m | Marginal now |
● Band-by-Time Plan for HA12
A planning heuristic for the local day at HA12, built from sunrise no sunrise — polar night, sunset no sunset — polar night, SFI 148, and Kp 5. Not a measurement — a starting point for where to listen as the day turns.
Grayline enhancement — low bands reach long distances as the terminator passes. Geomagnetic storm in progress (Kp 5) — expect absorption and weak high-latitude paths.
High bands rising with the sun; check 10m for DX.
Peak high-band window — 10m and 15m open widest.
Second grayline peak — 20m holds, then hands off to 40m. Geomagnetic storm in progress (Kp 5) — expect absorption and weak high-latitude paths.
Low bands own the darkness — 40m for DX, 80m regional. Geomagnetic storm in progress (Kp 5) — expect absorption and weak high-latitude paths.
Recent local activity
Spots touching HA12 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in HA12, HA13, HA11, HA22, HA02. This gives the page unique, local context instead of a generic solar snapshot.
Top DX targets
Where this grid is reaching right now
Contest preview
Next major contest outlook
Worked All Europe - SSB starts Sat, 12 Sep 2026 00:00:00 GMT. Current forecast from HA12: 10m POOR, 15m POOR, 20m POOR. Geomagnetic conditions are mixed (SFI 148, K 5). Expect 20m and 40m to carry most of the weekend.
Open contest calendarNearby grids
Four adjacent squares for internal path checking
Regional hub links