What grid square is Perth?

OF78 is the live DXRadar reference square for Perth. The exact portable or home QTH may vary within the square, but this page tracks the center of OF78 for planning propagation.

How do I find my grid square?

Use a Maidenhead grid lookup from your GPS coordinates or street address, then compare that grid with the nearby squares linked on this page. A 4-character grid is enough for most HF planning.

What bands are open in OF78 right now?

OF78 is currently rated POOR. The best bands right now are 10m, 20m, 30m, 40m, 60m, with 10m as the main band to watch first.

Grid OF78 Band Conditions — Perth

Localized HF conditions for Maidenhead locator OF78. Coordinating at -31.50°, 115.00°. Updated with real-time telemetry from NOAA and DX cluster reports.

OF78 conditions are POOR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 104.

Regional Radar

SFI

104

K-Index

0 Kp

Center Coords

-31.5, 115.0

Local Phase

Daylight

Grayline window

Sunrise 22:11 UTC

Sunset 10:16 UTC from OF78

From Perth, work the 22:11 UTC and 10:16 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses OF78.

Best band now

10m

10m is the first place to check for long-haul openings from this region, with 15m close behind.

Closest operating hub

Perth

This square sits in Australia footprint and is best used as a planning center for portable, field-day, and home-station band decisions.

Latitude zone: mid-latitude
Local phase: Daylight
Aurora exposure: low at this latitude
Grayline: 22:11 UTC / 10:16 UTC
Best high band: 10m
Nearest city: Perth

● Local Band Quality Scorings

Use this local score for OF78, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.

10m

EXCELLENT

15m

EXCELLENT

20m

GOOD

40m

POOR

80m

POOR

● Best DX Windows from OF78 — Perth

Great-circle distance, short-path beam heading, the bands most likely open right now from OF78 to each DX region at SFI 104 / Kp 0, 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	2,072 mi	96°	10m, 15m, 20m	Open now
South Asia	4,434 mi	322°	10m, 15m, 20m	Open now
East Asia / Japan	4,896 mi	20°	10m, 15m, 20m	Open now
Southern Africa	5,249 mi	248°	40m, 20m, 80m	Open now
Europe	8,487 mi	312°	40m, 20m, 80m	Open now
South America	9,191 mi	189°	40m, 20m, 80m	Open now
North America	10,516 mi	65°	10m, 15m, 20m	Open now

● Band-by-Time Plan for OF78

A planning heuristic for the local day at OF78, built from sunrise 22:11 UTC, sunset 10:16 UTC, SFI 104, and Kp 0. Not a measurement — a starting point for where to listen as the day turns.

Dawn grayline

around 22:11 UTC

40m · 30m · 20m

Grayline enhancement — low bands reach long distances as the terminator passes.

Morning

after 22:11 UTC

20m · 15m

Modest SFI — 20m is the daytime workhorse here.

Midday

local noon

15m · 20m

20m and 15m carry the daytime load at this SFI.

Dusk grayline

around 10:16 UTC

20m · 40m

Second grayline peak — 20m holds, then hands off to 40m.

Night

after 10:16 UTC

40m · 80m

Low bands own the darkness — 40m for DX, 80m regional.

Recent local activity

Spots touching OF78 and the adjacent squares

These are the newest 10m, 15m, and 20m reports where one side of the path sits in OF78, OF79, OF77, OF88, OF68. This gives the page unique, local context instead of a generic solar snapshot.

No fresh PSKReporter paths are cached for the immediate OF78 footprint right now. That usually means you should widen the search to the nearest regional hubs below or fall back to 20m/40m for the next operating window.

Top DX targets

Where this grid is reaching right now

No outbound targets were strong enough to rank from the current cache. Check back after the next PSKReporter refresh or switch to the regional grids below.

Contest preview

Next major contest outlook

No contest event is currently loaded. For planning from OF78, start with 10m EXCELLENT, 15m EXCELLENT, 20m GOOD and keep 20m available as the safest all-around fallback.

Open contest calendar

Nearby grids