I vaguely remember reading a history of the QMN founding, perhaps in a monthly mailing many years ago. Does anyone have a document like this?

For instance, I think the net frequency was planned to be "3665 kilocycles", but the crystals that were ground and sold for a dollar each later measured at 3663 kHz. That's only .05% which was quite accurate in 1935.

My first VFO dial (Heathkit HG-10B) was maybe a tenth inch per 10 kHz, so whatever frequency NCS established was what I would QNZ. QNY to pass traffic meant first tune the receiver to the other station, and then spot the transmit VFO to zero on it. Sometimes a station would forget to move the transmitter VFO off frequency and we would get a laugh listening to it on net frequency. NCS would QNE while going to QNM that station.

Today's transceivers with precise digital displays are so much better.