Nav aids

Loran-c station nii jima, rates 8930-MASTER and 9930-Y, off air 282300Z to 291100Z, 292300Z to 300800Z and…

HYDROPAC 1873/03

issued: 2003-10-28 02:53Z
status: cancelled 2003-11-01 04:00Z (archive)
self-cancels: 2003-11-01 04:00Z
cancels: HYDROPAC 1841/03
authority: NAVAREA XI 545/03 280140Z 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 282300Z TO 291100Z, 292300Z TO 300800Z
   AND 312300Z OCT TO 010300Z NOV.
2. CANCEL HYDROPAC 1841/03.
3. CANCEL THIS MSG 010400Z NOV.

Activity windows · 3 in this warning

opens (UTC)	closes (UTC)	local	length
2003-10-31 23:00Z	2003-11-01 03:00Z	—	4 h
2003-11-28 23:00Z	2003-11-29 11:00Z	—	12 h
2003-11-29 23:00Z	2003-11-30 08:00Z	—	9 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 272300Z to 281100Z, 282300Z to 290800Z and…cancels · 2003-10-23
Loran-c station nii jima, rates 8930-MASTER and 9930-Y, off air 272300Z to 281100Z, 282300Z to 290800Z and…replaced · 2003-10-23

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.