These are Hourly Area Predictions (HAP) of communication frequencies based on current observed conditions in the area of interest. Because of the variability of the ionosphere this type of prediction can only be made for the current hour.

HAP Charts For NSW State Emergency Service (SES) Select one.... SES Bathurst SES Bourke SES Dubbo SES Goonellabah SES Goulburn SES Grafton SES Gunnedah SES Lavington SES Lord Howe Island SES Metford SES Moree SES Parkes SES Singleton SES Sydney SES Taree SES Wagga Wagga SES Wollongong