What grid square is Tehran?

LM66 is the live DXRadar reference square for Tehran. The exact portable or home QTH may vary within the square, but this page tracks the center of LM66 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 LM66 right now?

LM66 is currently rated FAIR. The best bands right now are 10m, 12m, 15m, 17m, 20m, with 10m as the main band to watch first.

HomeSFI --K ---:-- UTC

Grid LM66 Band Conditions — Tehran

Localized HF conditions for Maidenhead locator LM66. Coordinating at 36.50°, 53.00°. Updated with real-time telemetry from NOAA and DX cluster reports.

LM66 conditions are FAIR. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.

Regional Radar

SFI

137

K-Index

3 Kp

Center Coords

36.5, 53.0

Local Phase

Night

Grayline window

Sunrise 01:26 UTC

Sunset 15:44 UTC from LM66

From Tehran, work the 01:26 UTC and 15:44 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses LM66.

Best band now

10m

European evening operation usually shifts toward 20m and 40m once the high bands soften.

Closest operating hub

Tehran

This square sits in Eastern Europe 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: 01:26 UTC / 15:44 UTC
Best high band: 10m
Nearest city: Tehran

● Local Band Quality Scorings

Use this local score for LM66, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.

10m

POOR

15m

POOR

20m

FAIR

40m

GOOD

80m

GOOD

● Best DX Windows from LM66 — Tehran

Great-circle distance, short-path beam heading, the bands most likely open right now from LM66 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	1,801 mi	117°	40m, 80m, 20m	Open now
Europe	2,317 mi	307°	40m, 80m, 20m	Open now
East Asia / Japan	4,562 mi	62°	40m, 20m, 80m	Open now
Southern Africa	4,662 mi	206°	40m, 20m, 80m	Open now
North America	6,903 mi	338°	10m, 15m, 20m	Open now
Oceania	7,771 mi	112°	40m, 20m, 80m	Open now
South America	7,988 mi	270°	40m, 20m, 80m	Open now

● Band-by-Time Plan for LM66

A planning heuristic for the local day at LM66, built from sunrise 01:26 UTC, sunset 15:44 UTC, SFI 137, and Kp 3. Not a measurement — a starting point for where to listen as the day turns.

Dawn grayline

around 01:26 UTC

40m · 30m · 20m

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

Morning

after 01:26 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 15:44 UTC

20m · 40m

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

Night

after 15:44 UTC

40m · 80m

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

Recent local activity

Spots touching LM66 and the adjacent squares

These are the newest 10m, 15m, and 20m reports where one side of the path sits in LM66, LM67, LM65, LM76, LM56. This gives the page unique, local context instead of a generic solar snapshot.

No fresh PSKReporter paths are cached for the immediate LM66 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 LM66, start with 10m POOR, 15m POOR, 20m FAIR and keep 20m available as the safest all-around fallback.

Open contest calendar

Nearby grids