What grid square is Washington DC?

FM28 is the live DXRadar reference square for Washington DC. The exact portable or home QTH may vary within the square, but this page tracks the center of FM28 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 FM28 right now?

FM28 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 FM28 Band Conditions — Washington DC

Localized HF conditions for Maidenhead locator FM28. Coordinating at 38.50°, -75.00°. Updated with real-time telemetry from NOAA and DX cluster reports.

FM28 conditions are POOR. Best bands: 10m, 20m, 30m, 40m, 60m. SFI: 105.

Regional Radar

SFI

105

K-Index

1.33 Kp

Center Coords

38.5, -75.0

Local Phase

Night

Grayline window

Sunrise 10:48 UTC

Sunset 23:00 UTC from FM28

From Washington DC, work the 10:48 UTC and 23:00 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses FM28.

Best band now

10m

After sunset, 20m transitions and 40m becomes the reliable DX fallback from this part of North America.

Closest operating hub

Washington DC

This square sits in USA 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: 10:48 UTC / 23:00 UTC
Best high band: 10m
Nearest city: Washington DC

● Local Band Quality Scorings

Use this local score for FM28, 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 FM28 — Washington DC

Great-circle distance, short-path beam heading, the bands most likely open right now from FM28 to each DX region at SFI 105 / Kp 1.33, 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
North America	1,237 mi	279°	40m, 80m, 20m	Open now
South America	3,857 mi	160°	40m, 20m, 80m	Open now
Europe	4,050 mi	49°	40m, 20m, 80m	Open now
East Asia / Japan	6,875 mi	333°	10m, 15m, 20m	Open now
Southern Africa	7,878 mi	105°	40m, 20m, 80m	Open now
South Asia	7,905 mi	28°	40m, 20m, 80m	Open now
Oceania	9,827 mi	269°	10m, 15m, 20m	Open now

● Band-by-Time Plan for FM28

A planning heuristic for the local day at FM28, built from sunrise 10:48 UTC, sunset 23:00 UTC, SFI 105, and Kp 1.33. Not a measurement — a starting point for where to listen as the day turns.

Dawn grayline

around 10:48 UTC

40m · 30m · 20m

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

Morning

after 10:48 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 23:00 UTC

20m · 40m

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

Night

after 23:00 UTC

40m · 80m

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

Recent local activity

Spots touching FM28 and the adjacent squares

These are the newest 10m, 15m, and 20m reports where one side of the path sits in FM28, FM29, FM27, FM38, FM18. This gives the page unique, local context instead of a generic solar snapshot.

No fresh PSKReporter paths are cached for the immediate FM28 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 FM28, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.

Open contest calendar

Nearby grids