[TheList] Civil Defence frequencies and usage

Sat Aug 27 20:35:04 AEST 2016

Hello, 

Just a bit curious as to the amount of activity on the Civil Defence frequencies and their usage. 
When they get used, how they get used, in what conditions do they get activated.

Any one in Christchurch - during the earthquakes and aftermaths did they get used much, or did each agency tend to use their own networks and infrastructure. 

This could apply nation wide, but more interested in particular to Wellington and Auckland. 
(Have they or will they go Digital) 

There are a lot of repeater and simplex frequencies listed, but what would be better to listen to or have a radio on to get the critical info in the event of it being activated.

I know SAR use HF, but do Civil Defence too??

Any info would be really helpful 

Thanks in advance, 