A closer inspection of the "Forward Gauss" machines shows that the VR 2000 is not using a "Scan Gun" on its receiver, only a loop antenna to pick up the signal. The loop antenna on the magnacast 5000 is apparently the transmitting antenna, not to be used at the reciever for surveying the signal strength. I presume the VR 2000 also has a similar loop antenna for transmitting the signal.
It appears that in the magnacast 5000, the old receiving loop antenna of the VR 2000 was replaced with the "Scan Gun" receiving antenna that was made to be adjustable.
Judging from the use of the Vernell machines, I would suspect the broadcast frequencies to be at the AM broadcast band or lower.
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