Many thanks to Al Kirton, the General Manager at NQ Radio, who has kindly shared a few more details about NQ Radio and, specifically, 4KZ:
NQ Radio operates about 20 AM & FM transmitters in North Queensland, Australia. Our stations are 4KZ, 4AM, 4AY, KIK FM & KOOL FM.
In a couple of months or so we will be establishing a 4KZ shortwave service on 5055 kHz with 1 kilowatt.
The antenna is designed to give primary coverage from 200 km to 800 km from Innisfail. We suspect it will be heard with a low quality signal much further away.
Many thanks, Al! We’ll be listening!