Grid CB85 Band Conditions
Localized HF conditions for Maidenhead locator CB85. Coordinating at -74.50°, -123.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
CB85 currently has elevated aurora risk (Kp: 5). High-latitude paths may be degraded.
From the CB85 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 CB85.
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
- high-latitude
- Local phase
- Daylight
- Aurora exposure
- elevated — auroral absorption likely (Kp 5)
- Grayline
- no sunrise — polar night / no sunset — polar night
- Best high band
- 10m
- Nearest city
- the CB85 operating area
● Local Band Quality Scorings
Use this local score for CB85, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from CB85 — the CB85 operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from CB85 to each DX region at SFI 150 / 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 | 4,173 mi | 264° | 10m, 15m, 20m | Open now |
| South America | 4,767 mi | 70° | 10m, 15m, 20m | Open now |
| Southern Africa | 5,354 mi | 152° | 40m, 20m | Marginal now |
| North America | 7,927 mi | 21° | 10m, 15m, 20m | Open now |
| South Asia | 8,728 mi | 204° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 8,767 mi | 273° | 10m, 15m, 20m | Open now |
| Europe | 10,281 mi | 115° | 10m, 15m, 20m | Open now |
● Band-by-Time Plan for CB85
A planning heuristic for the local day at CB85, built from sunrise no sunrise — polar night, sunset no sunset — polar night, SFI 150, 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 CB85 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in CB85, CB86, CB84, CB95, CB75. 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 CB85, start with 10m FAIR, 15m FAIR, 20m POOR and keep 20m available as the safest all-around fallback.
Open contest calendarNearby grids
Four adjacent squares for internal path checking
Regional hub links