Grid GF79 Band Conditions — South America
Localized HF conditions for Maidenhead locator GF79. Coordinating at -30.50°, -45.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
GF79 conditions are POOR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 105.
From South America operating area, work the 08:51 UTC and 20:57 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses GF79.
Night operation should keep 20m on watch and move to 40m as the path darkens.
This square sits in South America 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
- 08:51 UTC / 20:57 UTC
- Best high band
- 10m
- Nearest city
- South America operating area
● Local Band Quality Scorings
Use this local score for GF79, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from GF79 — South America operating area
Great-circle distance, short-path beam heading, the bands most likely open right now from GF79 to each DX region at SFI 105 / 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 |
|---|---|---|---|---|
| South America | 1,351 mi | 320° | 40m, 80m, 20m | Open now |
| Southern Africa | 4,261 mi | 105° | 40m, 20m, 80m | Open now |
| North America | 5,887 mi | 321° | 40m, 20m, 80m | Open now |
| Europe | 6,500 mi | 32° | 40m, 20m, 80m | Open now |
| Oceania | 8,142 mi | 195° | 40m, 20m, 80m | Open now |
| South Asia | 8,892 mi | 85° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 12,019 mi | 336° | 40m, 20m, 80m | Open now |
● Band-by-Time Plan for GF79
A planning heuristic for the local day at GF79, built from sunrise 08:51 UTC, sunset 20:57 UTC, SFI 105, 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.
Modest SFI — 20m is the daytime workhorse here.
20m and 15m carry the daytime load at this SFI.
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 GF79 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in GF79, GG70, GF78, GF89, GF69. 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 GF79, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.
Open contest calendarNearby grids