Sydneyâs coolest months are June to August when average temperatures drop between 8.8 - 17Â°C (47.8 - 62.6Â°F). Sydneyâs rainfall is generally highest in June, with an average of 132 mm (5.2â), while July is the coolest month when average daytime temperatures reach just 13Â°C (55Â°F). Spring (September â November)
The human ear responds to sounds with frequencies in the range from 20 Hz to 20,000 Hz. This is called the audible range of the human ear.
EME operation occurs from the 6 Meter band all the way up into the tens of Gigahertz Frequency Range. 2 Meters is the most popular band because it is much easier to get the equipment to setup a EME Station and it has the highest population of EME Operators.