The Plant Supervisor of WOR, Charles Singer, says: "Regarding the "Super Pro", it is operating in our immediate 50,000 watt field. We are using three doublet antennas, 50' high and exposed to an R.F. field from WOR transmitter of 10 or more volts of R.F.  We are able to tune in all broadcasting stations between 500 and 1600 kc. with no inter-channel interference.  On shorter waves, we experience pre-selection enough to pick up all foreign and local stations with 5 and 10 kc separation from our harmonics.  We followed the Queen Mary from its dock in England to New York. It is the only receiver of the many tested that performed so well in our immediate transmitter field."  -  From Hammarlund ad in QST, September, 1936.