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Eric,
I took my SQM-L up to a place several Km outside Willow Tree. There were no street or house lights, a bit of traffic on the Kamilaroi Highway, but none directed to where I was observing.
On a perfectly clear night with Crux just west of the meridian the reading from that piece of sky was about 21.6
To the northwest towards Quirindi was about 22.5.
Depending on the amount of moisture in the air - it does not have to be cloudy to increase the skyglow, just humid - I can get a bit beyond 20 at the local pony club in the northwest of Sydney.
Andrew
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