Contents - Index

Browse PostCodes

The programme includes a list of nearly 17,000 Australian postcode/suburb entries that are primarily used to geocode the callsign database, and to make corrections on database entries that do not conform exactly with the Spectra data. They can, however, be browsed directly through the 'Browse Tables > Browse PostCodes' command, or used as a reference when making other Spatial Queries.

Postcode entries can be plotted directly on to the Online and Overlay Maps by right-clicking an entry and choosing 'Show on Map' from the context-menu. Once an entry has been plotted on a map, its position can then be used for a variety of new Spatial Queries, where the entry's position is used as the centre-point for a table-search.

Assuming that you have entered your QTH's latitude and longitude position by clicking 'Help > Options > Mapping > User Details', you can then perform a 'User Spatial Query' on the table data by right-clicking any table line and choosing 'User Spatial Query'. What this command does is to order the complete table by distance from your User-location. You can thus discover the entries that are the closest to you, and those farthest way. A 'Bearing' column is also added to the table, that shows the short-path bearing from your User-location. If you wish, you can order the table by bearing simply by clicking that column's header. Note that making Spatial Queries does not alter the data in the databases in any way.

Another option in the context-menu shown when you right-click a line is 'Row Spatial Query'. What this command does is to order the complete table by distance from the location of the entry in the row that you clicked on. You can thus discover the entries that are the closest to that particular line-value, and those that are farthest way. A 'Bearing' column is also added to the table, as before.

Markers plotted on the Online and Overlay maps are contained within 7 different invisible layers, each of which can be turned on and off or cleared individually. Postcode markers have their own layer, so any plotted Postcode markers can be hidden temporarily, or permanently cleared from the Online and Overlay maps without affecting any other markers or polygons currently displayed. To control the Postcode markers, click 'Markers > Hide Postcode Markers' or 'Markers > Clear Postcode Markers'.