Nav aids

Antofagasta radio 23-40.7S 070-24.5W mf dsc off air 011200Z to 012100Z aug

South Pacific Ocean · HYDROPAC 2606/17

What this record establishes

Archived notice · 2017-08-01 22:00Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XV 178/17 010236Z AUG 17.. Issued 2017-08-01 02:37Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
South Pacific Ocean. The parsed report position is -21.945, -70.281. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the South Pacific Ocean →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2017-08-01 12:00Z2017-08-01 21:00Z—9 h

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

issued
2017-08-01 02:37Z
status
Archived notice
self-cancels
2017-08-01 22:00Z
authority
NAVAREA XV 178/17 010236Z AUG 17.
NAVAREA
NAVAREA XV · named as the source of this relay
sea
South Pacific Ocean
position
-21.945, -70.281
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN SOUTH PACIFIC.
CHILE.
DNC 07.
1. ANTOFAGASTA RADIO 23-40.7S 070-24.5W MF DSC
   OFF AIR 011200Z TO 012100Z AUG.
2. IQUIQUE RADIO 20-12.7S 070-09.2W ASSUMES CONTROL.
3. CANCEL THIS MSG 012200Z AUG 17.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
DSC (Digital Selective Calling)
The digital radio alert built into modern marine radios — one button sends a distress alert with the vessel's identity and position.
Inoperative / unreliable / off air
An aid or radio service is not working as charted or published.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · aids-to-navigation notices

21 within 180 nm since 2002 · 0 in the last 12 months · 0 listed in force now

02
05
10
15
20
25

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

134 aids-to-navigation notices listed in force · see all

Record snapshot 2026-10-02 23:29Z; source collection times vary.

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.