Page "XERF-AM" Paragraph 26

There was some suspicion that part of the problem came from the ancient RCA 250 kW transmitter and part from a desire by the owners of XERF to cut electricity costs in order to increase their profit margin.

The signal of XERF would boom in for a sustained period of time only to suddenly drop-off to a prolonged whisper.

This effect did not seem to be the result of normal propagation problems, which often results when a sky wave signal is bounced off the ionosphere.

Then the signals result in a pattern of temporary but repetitious fading.

When the XERF signal lost its strength it seldom regained it.