The results of the NZART Doug Gorman Memorial Frequency Measuring Contest 2011 are presented below. These results are provisional and have been checked carefully but if you think an error has crept in please let NZART HQ know as soon as possible.
This year was a very interesting turnaround from last year with several entries in the Norm Edwards category beating out Ultra entrants with Mike ZL4OL showing how it’s done. The four top scores were all better than the first place result from last year, no doubt a combination of better technique and propagation conditions.
The format of the results is Name Call Average (Hz) Standard Deviation (Hz) Equipment (where noted in contest entry):
OVERALL
1st Mike ZL4OL 0.093667 0.071822 ICR75 with OCXO, off-line GPS and JJY cal, and Argo
2nd Brian ZL1IE 0.097000 0.090901 IC725 and Baudline, ZL1BPU cal
3rd Wayne ZL2BKC 0.105800 0.096334 Softrock with FE5680 Rubidium, GPS cal, and Spectrum Lab
ULTRA
Wayne ZL2BKC Ultra 0.105800 0.096334 Softrock with FE5680 Rubidium, GPS cal, and Spectrum Lab
Len ZL2GO 0.143333 0.073975 TS430 HP8656A sig gen with GPSDO and Spectrum Lab
Ian ZL1AOX 0.168500 0.046651 Mercury PowerSDR with HP GPSR-A and Spectrum Lab
Clayton VK1TKA 0.749667 0.201659 TS130S with FE-5680A Rubidium, GPS cal, and Argo (QTH Canberra)
NORM EDWARDS
Mike ZL4OL 0.093667 0.071822 ICR75 with OCXO and Argo
Brian ZL1IE 0.097000 0.090901 IC725 and Baudline
Ralph ZL1TBG 0.106800 0.051456 Agilent E4403 with OCXO, WWV cal
Randell ZL2RJP 0.170750 0.123632 Elektor SDR with HP5334A counter OCXO and SpectraVue
Chris ZL1BOE 0.213200 0.064480 Flex 1500 with OCXO and FIDigi in FMT mode
Neil ZL2TNG 0.355000 0.203681 FT767 and PC
Fred ZL1FAV 0.384800 0.277789 IC706 Mk2G and PC
Maurice ZL2ADP 0.564667 0.365522 FT847 and PC
Joe ZL2JM 0.584800 0.408983 IC718, WWV cal
Roy ZL1WI 0.601000 0.528179 FT767, WWV and ZL6A cal
Lorne ZL2AHB 1.4152 0.379166 IC7000 and Spectrum Lab
Ken ZL2TKY 1.6880 1.2543 FT1000MP Mk5 Field
David ZL1MR 2.4308 0.136032 FT817 and SBSpectrum, off-line GPS cal
David ZL1DK 2.6947 4.4621
Harry ZL2ADU 5.2152 0.501365 Homebrew HF transceiver with 10 Hz
John ZL1VD 7.3848 2.3397 FT847
Brian ZL2AYF 8.1928 3.9923 IC706 Mk2G
Robert ZL2BFY 18.198 17.318 IC756
Mark ZL3MC 19.903 8.5805 FRG100 with 10Hz display enabled
JOHN McKIM CUP
Alan ZL1AUW 6.361000 3.666212 TS430 and 440 Hz pitch pipe cal
Mike ZL2AUA 32.775 42.128 IC735 with Mk1 ears
Thank you to all competitors! It was a good contest from my perspective, all entires were better than 10 ppm (parts per million) with more than half within 1 Hz (0.3 ppm).
Notable was a very respectable entry from Clayton VK1TKA Canberra. A nice letter from Mike ZL2AUA summed things up well expressing his pleasure from having a go at the contest and commenting “cracking signal up here in Kerikeri ... the gear used was my 25 year old Icom 735 and my 67 year old ears”. Like most things in life it’s not winning that counts but the taking part.
John ZL4JY