Nav aids

Coast guard station boston transmitters off air 160900Z to 161100Z and 162100Z to 162300Z apr

U.S · NAVAREA IV 133/02

issued: 2002-04-15 19:15Z
status: cancelled 2002-04-16 19:00Z (archive)
self-cancels: 2002-04-17 00:01Z
authority: CAMSLANT 151851Z APR 02
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. U.S. COAST GUARD STATION BOSTON TRANSMITTERS OFF AIR
   160900Z TO 161100Z AND 162100Z TO 162300Z APR.
2. CANCEL THIS MSG 170001Z APR.

Activity windows · 2 in this warning

opens (UTC)	closes (UTC)	local	length
2002-04-16 09:00Z	2002-04-16 11:00Z	—	2 h
2002-04-16 21:00Z	2002-04-16 23:00Z	—	2 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

Timeline

Cancel NAVAREA IV 133/02 and this msg, station restoredcancelled by · 2002-04-16

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

193 aids-to-navigation notices in force · see all

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.