630m Band in Australia
As of 1st January 2013,
Australian Advanced amateur licensees can operate in the new
wavelength band (630 metres) on a secondary basis in the segment 472 kHz to 479
kHz - refer to Radiocommunications
Licence Conditions (Amateur Licence) Amendment Determination
2012 (No. 1) for details.
This secondary allocation is conditional on the Amateur Radio
Service not interfering with a primary service, viz. aeronautical
navigation Non Directional Beacons (NDBs) operating within and
adjacent to the 630 m band. Protection for these NDBs from
transmitters operating in the Amateur Radio Service is provided
via two exclusion zones; viz. Australian territory lying in the
areas defined as follows:
This web page
provides a map showing
the exclusion zones, including the overall exclusion zone;
and a list of
coordinates (latitude and longitude) which are used to
define the overall exclusion zone on the map.
- 2000 km
radial distance from the Timor NDB located at latitude 10°
37’ 21” S, longitude 126° 02’ 00” E in the Timor Sea; and
- 1000 km
radial distance from the Exmouth NDB located at latitude
21° 26’ 07” S, longitude 114° 03’ 57” E off the coast
near Exmouth, Western Australia.
Please note that this is provided for information only - readers
are reminded that the LCD
Amendment Determination is the defining reference, and not
this web page!
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630m Exclusion Zone
Figure 1 -
630m Amateur Radio Band Exclusion Zone. The map is
an azimuthal equidistant (or "Great Circle") projection
centred on Alice Springs, NT, showing the locations of the
Exmouth and Timor NDBs. The extent of the respective
exclusion zones over Australia for the 630m amateur radio band
is shown, as well as the overall exclusion zone.
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Coordinates Defining The
Overall Exclusion Zone
This text file contains a list of
coordinates which define the overall exclusion zone (heavy line)
shown in Figure 1 above.
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This page was
created by Mike Dower VK2IG: 29 Dec 2012. Material may
be copied for personal or non-profit use only.