What grid square is the JA92 operating area?

JA92 is the live DXRadar reference square for the JA92 operating area. The exact portable or home QTH may vary within the square, but this page tracks the center of JA92 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 JA92 right now?

JA92 is currently rated FAIR. The best bands right now are 10m, 20m, 30m, 40m, 60m, with 10m as the main band to watch first.

Grid JA92 Band Conditions

Localized HF conditions for Maidenhead locator JA92. Coordinating at -87.50°, 19.00°. Updated with real-time telemetry from NOAA and DX cluster reports.

JA92 conditions are FAIR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 121.

Regional Radar

SFI

121

K-Index

1.67 Kp

Center Coords

-87.5, 19.0

Local Phase

Night

Grayline window

Sunrise 02:41 UTC

Sunset 18:33 UTC from JA92

From the JA92 operating area, work the 02:41 UTC and 18:33 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses JA92.

Best band now

10m

Night operation should keep 20m on watch and move to 40m as the path darkens.

Closest operating hub

the JA92 operating area

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: 02:41 UTC / 18:33 UTC
Best high band: 10m
Nearest city: the JA92 operating area

● Local Band Quality Scorings

Use this local score for JA92, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.

10m

POOR

15m

POOR

20m

FAIR

40m

EXCELLENT

80m

EXCELLENT

● Best DX Windows from JA92 — the JA92 operating area

Great-circle distance, short-path beam heading, the bands most likely open right now from JA92 to each DX region at SFI 121 / Kp 1.67, 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
Southern Africa	4,251 mi	7°	40m, 20m, 80m	Open now
Oceania	4,260 mi	132°	40m, 20m, 80m	Open now
South America	5,144 mi	282°	40m, 20m, 80m	Open now
South Asia	7,648 mi	58°	40m, 20m, 80m	Open now
East Asia / Japan	8,787 mi	117°	40m, 20m, 80m	Open now
North America	8,989 mi	245°	40m, 20m, 80m	Open now
Europe	9,502 mi	351°	40m, 20m, 80m	Open now

● Band-by-Time Plan for JA92

A planning heuristic for the local day at JA92, built from sunrise 02:41 UTC, sunset 18:33 UTC, SFI 121, and Kp 1.67. Not a measurement — a starting point for where to listen as the day turns.

Dawn grayline

around 02:41 UTC

40m · 30m · 20m

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

Morning

after 02:41 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 18:33 UTC

20m · 40m

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

Night

after 18:33 UTC

40m · 80m

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

Recent local activity

Spots touching JA92 and the adjacent squares

These are the newest 10m, 15m, and 20m reports where one side of the path sits in JA92, JA93, JA91, KA02, JA82. This gives the page unique, local context instead of a generic solar snapshot.

No fresh PSKReporter paths are cached for the immediate JA92 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

CQ World Wide DX Contest - SSB starts Sat, 24 Oct 2026 00:00:00 GMT. Current forecast from JA92: 10m POOR, 15m POOR, 20m FAIR. Current solar conditions (SFI 121, K 1.67) favor 10m, 15m, 20m for this contest weekend.

Open contest calendar

Nearby grids