Nav aids

Loran-c station nii jima, rates 8930-MASTER and 9930-Y, off air 272300Z to 281100Z, 282300Z to 290800Z and…

HYDROPAC 1841/03

issued: 2003-10-23 14:10Z
status: cancelled 2003-10-28 02:53Z (archive)
self-cancels: 2003-10-31 04:00Z
authority: NAVAREA XI 526/03 23 OCT 03
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. LORAN-C STATION NII JIMA, RATES 8930-MASTER AND 9930-Y,
   OFF AIR 272300Z TO 281100Z, 282300Z TO 290800Z
   AND 302300Z TO 310300Z OCT.
2. CANCEL THIS MSG 310400Z OCT.

Activity windows · 3 in this warning

opens (UTC)	closes (UTC)	local	length
2003-10-27 23:00Z	2003-10-28 11:00Z	—	12 h
2003-10-28 23:00Z	2003-10-29 08:00Z	—	9 h
2003-10-30 23:00Z	2003-10-31 03:00Z	—	4 h

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

Timeline

Loran-c station nii jima, rates 8930-MASTER and 9930-Y, off air 282300Z to 291100Z, 292300Z to 300800Z and…cancelled by · 2003-10-28

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.