Seventy-eighth edition of the N&O column / Spooks newsletter

(Date: Sun, 31 Oct 2004 15:50:35 +0000)

Pulse signal on 14318 kHz

Herbert R. Nichols in the USA reports about hearing a pulse signal sequence on 14318 kHz. He describes it as follows:

"I have been hearing a signal on 14.318 MHz for several months. It sounds like a slow "busy signal" with 49 pulses per minute and every 37 pulses, the tones change. It typically runs for about 15 minutes then may stop; or, it may start up for another 15 minute sequence. Often, it runs for several hours at seemingly random times. Occasionally, I hear two or more separate signals, with each one pulsing in the same manner, but not synchronized with each other.

If you listen on 14.317.500 MHz USB, you will hear the pulsing carrier, centered on 14.318.000 MHz +/- a few cycles, plus either one or sometimes two pulsing tones. The carrier as well as the tones pulse together but the carrier does not change frequency as the tones change frequency. I find listening "off frequency" a bit helps a lot to identify the specific signals. ..."

Some days later it was confirmed by Kurt, also USA:

"I could faintly hear the buzz with a dipole receiving N-S. I turned the dipole to receive E-W and the buzzing became very slightly louder.

I did not hear it at first, but after a few minutes of monitoring I began to receive what can best be described as a sonar type ping. It is a very fast rising tone lasting only a fraction of a second at varying speeds yet bouncing the S-meter fro S-7 to S-9. Perhaps someone keying up their TX and spinning the dial back and forth? It appears to be gone now."

Unfortunately, we couldn't find out so far, what it is/was. So we hope, that we can report more in the next edition of N&O. Thanks to Herbert and Kurt.