XC Australia Matt Rosser has an awesome webpage for checking airspace. You can use before your flight, in planning to comply with airspace regulations. You can also use after your flight by loading your GPS flight log - IGC file to check if you breached airspace anywhere on your flight without being penalized.
If you do publish in the public domain a flight on any of the online scoring websites that shows a breach you will probably get a very unpleasant "please explain" Show Cause communication from the aviation authorities.
downloading: VTC Chart - Nov 2012 pdf ...
Civil Aviation Safety Authority (CASA) required all users in CTAF areas, 10nm circle around airports including tiny country airstrips, and class E airspace to make calls on airband radios (VHF AM 118-136mHz) to improve safety and avoid aircraft mid-air collisions.
Regarding the need to both “carry” and “use” a VHF radio during certain flights;
2/. Operates within 10nm of certified, registered and military aerodromes, as identified and published in ERSA, or any other aerodromes designated by CASA on a case by case basis, as published in ERSA or by NOTAM
All aircraft flying in Class E airspace are required to operate at "cruising altitudes".
The chance of any aircraft flying IFR through a cloud while in Class G airspace is “relatively” low, however the chance of an aircraft flying IFR in Class E airspace is relatively high. This means that the cloud you may be flying illegally close to in Class E may suddenly produce a very fast flying aircraft who not only isn’t looking, but is completely unaware of the potential of someone else being there.
I would consider it highly advisable to make occasional VHF calls on the appropriate area frequency stating your position and altitude, when operating in Class E, especially when operating above 8,500’. Class E airspace in our area begins above 8,500’ and this is particularly true above Killarney. All flights above 8500’ in the Killarney can only be conducted by appropriately equipped (carrying a VHF radio) and qualified (holding a VHF airband operators license) HGFA member. And I’d recommend that calls be made, especially if you are flying close to cloud.
By: Phil Hystek
Example: Brisbane Valley: CTAF Watts Bridge
Recommended reading HGFA - VHF Airband Radio Syllabus and Textbook PDF
The CTAF around Watts Bridge is always active (CTAF VHF 127.3 Mhz). Refer to aerodrome information from ERSA.
Note 10NM around Watts Bridge includes the No Fly Zone - meat bombing / Skydiving at Ramblers Drop Zone (DZ), Toogoolawah
Note Aerobatics Competition Box - No Fly Zone
Aviation VHF frequencies courtesy of Kingaroy (Gliding) Soaring club: Kingaroy Soaring
CTAF areas: 10nm circle around airports including tiny country airstrips, and class E airspace.