Call signs ZL1ZLD and ZL1ZLF are for A) Auckland or B) Musick Point, both are in New Zealand
Answer is B Musick Point, they have several amateur radio stations at Musick Point, including high-frequency transceivers with directional antennas, various VHF and UHF repeaters and our specialty, a 630-metre radio telegraph station.The whole story and what they are up to follow this link to the Musick Point Website