Grid OL43 Band Conditions
Localized HF conditions for Maidenhead locator OL43. Coordinating at 23.50°, 109.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
OL43 conditions are GOOD. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.
From the OL43 operating area, work the 22:10 UTC and 11:32 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses OL43.
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
- mid-latitude
- Local phase
- Darkness
- Aurora exposure
- low at this latitude
- Grayline
- 22:10 UTC / 11:32 UTC
- Best high band
- 10m
- Nearest city
- the OL43 operating area
● Local Band Quality Scorings
Use this local score for OL43, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from OL43 — the OL43 operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from OL43 to each DX region at SFI 137 / Kp 2, 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 |
|---|---|---|---|---|
| East Asia / Japan | 1,932 mi | 57° | 40m, 80m, 20m | Open now |
| South Asia | 1,974 mi | 273° | 40m, 80m, 20m | Open now |
| Oceania | 4,589 mi | 142° | 40m, 20m, 80m | Open now |
| Europe | 5,368 mi | 319° | 40m, 20m, 80m | Open now |
| Southern Africa | 6,513 mi | 243° | 40m, 20m, 80m | Open now |
| North America | 7,779 mi | 22° | 10m, 15m, 20m | Open now |
| South America | 11,406 mi | 302° | 40m, 20m, 80m | Open now |
● Band-by-Time Plan for OL43
A planning heuristic for the local day at OL43, built from sunrise 22:10 UTC, sunset 11:32 UTC, SFI 137, and Kp 2. 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 OL43 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in OL43, OL44, OL42, OL53, OL33. 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
No contest event is currently loaded. For planning from OL43, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.
Open contest calendarNearby grids
Four adjacent squares for internal path checking
Regional hub links