Grid DC79 Band Conditions
Localized HF conditions for Maidenhead locator DC79. Coordinating at -60.50°, -105.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
DC79 conditions are FAIR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 118.
From the DC79 operating area, work the 12:46 UTC and 01:01 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses DC79.
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
- watch during geomagnetic storms
- Grayline
- 12:46 UTC / 01:01 UTC
- Best high band
- 10m
- Nearest city
- the DC79 operating area
● Local Band Quality Scorings
Use this local score for DC79, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from DC79 — the DC79 operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from DC79 to each DX region at SFI 118 / Kp 0.33, 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 |
|---|---|---|---|---|
| South America | 3,915 mi | 58° | 40m, 20m, 80m | Open now |
| Oceania | 4,909 mi | 242° | 40m, 20m, 80m | Open now |
| Southern Africa | 5,857 mi | 137° | 10m, 15m, 20m | Open now |
| North America | 6,886 mi | 6° | 40m, 20m, 80m | Open now |
| East Asia / Japan | 9,246 mi | 268° | 40m, 20m, 80m | Open now |
| South Asia | 9,773 mi | 184° | 40m, 20m, 80m | Open now |
| Europe | 9,893 mi | 76° | 10m, 15m, 20m | Open now |
● Band-by-Time Plan for DC79
A planning heuristic for the local day at DC79, built from sunrise 12:46 UTC, sunset 01:01 UTC, SFI 118, and Kp 0.33. 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 DC79 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in DC79, DD70, DC78, DC89, DC69. 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
CQ World Wide DX Contest - SSB starts Sat, 24 Oct 2026 00:00:00 GMT. Current forecast from DC79: 10m POOR, 15m POOR, 20m FAIR. Current solar conditions (SFI 118, K 0.33) favor 10m, 15m, 20m for this contest weekend.
Open contest calendarNearby grids
Four adjacent squares for internal path checking
Regional hub links