Grid KM77 Band Conditions — Eastern Europe
Localized HF conditions for Maidenhead locator KM77. Coordinating at 37.50°, 35.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
KM77 conditions are FAIR. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.
From Eastern Europe operating area, work the 02:36 UTC and 16:58 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses KM77.
European evening operation usually shifts toward 20m and 40m once the high bands soften.
This square sits in Eastern Europe 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
- 02:36 UTC / 16:58 UTC
- Best high band
- 10m
- Nearest city
- Eastern Europe operating area
● Local Band Quality Scorings
Use this local score for KM77, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from KM77 — Eastern Europe operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from KM77 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 |
|---|---|---|---|---|
| Europe | 1,506 mi | 313° | 40m, 80m, 20m | Open now |
| South Asia | 2,764 mi | 100° | 40m, 20m, 80m | Open now |
| Southern Africa | 4,426 mi | 189° | 40m, 20m, 80m | Open now |
| East Asia / Japan | 5,367 mi | 54° | 40m, 20m, 80m | Open now |
| North America | 6,366 mi | 325° | 10m, 15m, 20m | Open now |
| South America | 7,006 mi | 260° | 40m, 20m, 80m | Open now |
| Oceania | 8,740 mi | 102° | 40m, 20m, 80m | Open now |
● Band-by-Time Plan for KM77
A planning heuristic for the local day at KM77, built from sunrise 02:36 UTC, sunset 16:58 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 KM77 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in KM77, KM78, KM76, KM87, KM67. 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 KM77: 10m POOR, 15m POOR, 20m FAIR. 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