What grid square is Copenhagen?

JO64 is the live DXRadar reference square for Copenhagen. The exact portable or home QTH may vary within the square, but this page tracks the center of JO64 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 JO64 right now?

JO64 is currently rated FAIR. The best bands right now are 10m, 20m, 30m, 40m, 60m, with 10m as the main band to watch first.

HomeSFI --K ---:-- UTC

Grid JO64 Band Conditions — Copenhagen

Localized HF conditions for Maidenhead locator JO64. Coordinating at 54.50°, 13.00°. Updated with real-time telemetry from NOAA and DX cluster reports.

JO64 conditions are FAIR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 137.

Regional Radar

SFI

137

K-Index

3 Kp

Center Coords

54.5, 13.0

Local Phase

Daylight

Grayline window

Sunrise 03:01 UTC

Sunset 19:29 UTC from JO64

From Copenhagen, work the 03:01 UTC and 19:29 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses JO64.

Best band now

10m

10m and 15m typically deliver the most consistent Europe outbound DX while solar flux remains healthy.

Closest operating hub

Copenhagen

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

Latitude zone: upper mid-latitude
Local phase: Daylight
Aurora exposure: low at this latitude
Grayline: 03:01 UTC / 19:29 UTC
Best high band: 10m
Nearest city: Copenhagen

● Local Band Quality Scorings

Use this local score for JO64, 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 JO64 — Copenhagen

Great-circle distance, short-path beam heading, the bands most likely open right now from JO64 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
South Asia	3,995 mi	97°	10m, 15m, 20m	Open now
North America	4,800 mi	309°	10m, 15m, 20m	Open now
East Asia / Japan	5,385 mi	43°	10m, 15m, 20m	Open now
Southern Africa	5,616 mi	168°	10m, 15m, 20m	Open now
South America	6,330 mi	246°	10m, 15m, 20m	Open now
Oceania	9,728 mi	69°	40m, 20m, 80m	Open now

● Band-by-Time Plan for JO64

A planning heuristic for the local day at JO64, built from sunrise 03:01 UTC, sunset 19:29 UTC, SFI 137, and Kp 3. Not a measurement — a starting point for where to listen as the day turns.

Dawn grayline

around 03:01 UTC

40m · 30m · 20m

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

Morning

after 03:01 UTC

20m · 15m · 10m

High bands rising with the sun; check 10m for DX.

Midday

local noon

10m · 15m · 20m

Peak high-band window — 10m and 15m open widest.

Dusk grayline

around 19:29 UTC

20m · 40m

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

Night

after 19:29 UTC

40m · 80m

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

Recent local activity

Spots touching JO64 and the adjacent squares

These are the newest 10m, 15m, and 20m reports where one side of the path sits in JO64, JO65, JO63, JO74, JO54. This gives the page unique, local context instead of a generic solar snapshot.

No fresh PSKReporter paths are cached for the immediate JO64 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

Worked All Europe - SSB starts Sat, 12 Sep 2026 00:00:00 GMT. Current forecast from JO64: 10m EXCELLENT, 15m EXCELLENT, 20m GOOD. Current solar conditions (SFI 137, K 3) favor 10m, 15m, 20m for this contest weekend.

Open contest calendar

Nearby grids