Grid BL51 Band Conditions
Localized HF conditions for Maidenhead locator BL51. Coordinating at 21.50°, -149.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
BL51 conditions are FAIR. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.
From the BL51 operating area, work the 15:25 UTC and 04:41 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses BL51.
10m is the headline band right now, with 20m as the dependable fallback if conditions soften.
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
- tropical
- Local phase
- Daylight
- Aurora exposure
- low at this latitude
- Grayline
- 15:25 UTC / 04:41 UTC
- Best high band
- 10m
- Nearest city
- the BL51 operating area
● Local Band Quality Scorings
Use this local score for BL51, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from BL51 — the BL51 operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from BL51 to each DX region at SFI 137 / Kp 3, 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 |
|---|---|---|---|---|
| North America | 3,227 mi | 56° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 4,435 mi | 301° | 10m, 15m, 20m | Open now |
| Oceania | 5,391 mi | 231° | 10m, 15m, 20m | Open now |
| South America | 6,657 mi | 104° | 10m, 15m, 20m | Open now |
| Europe | 7,332 mi | 14° | 10m, 15m, 20m | Open now |
| South Asia | 8,071 mi | 311° | 10m, 15m, 20m | Open now |
| Southern Africa | 11,994 mi | 135° | 10m, 15m, 20m | Open now |
● Band-by-Time Plan for BL51
A planning heuristic for the local day at BL51, built from sunrise 15:25 UTC, sunset 04:41 UTC, SFI 137, and Kp 3. 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.
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.
Low bands own the darkness — 40m for DX, 80m regional.
Recent local activity
Spots touching BL51 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in BL51, BL52, BL50, BL61, BL41. 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 BL51: 10m EXCELLENT, 15m EXCELLENT, 20m GOOD. Current solar conditions (SFI 137, K 3) favor 10m, 15m, 20m for this contest weekend.
Open contest calendarNearby grids
Four adjacent squares for internal path checking
Regional hub links