what is this signal?

[KT4XP]

Hello,

There is a one second pulse with an audio frequency of approximately 1360 Hz.  It occurs approximately every 20 seconds on 50.020.I don't know of anything other than CW beacons that should be in this frequency range.  Does anybody know what this signal is?My Grid is EM 94.  The only direction I don't hear it in, is North, but my two element Moxon is not exactly a laser beam.maybe I've watched too many Jodie Foster, movies, but any help would be appreciated.

[K5LXP]

Could be anything.  On 6M I pick up my cordless drill charger in the garage.  If it's there 24/7 it's something local, because you know the band isn't open that much.

Mark K5LXP
Albuquerque, NM

[WB5ITT]

In the US, the segment 50.0-50.1 is CW only (auto beacons are only allowed in 50.6-50.8 range...manned beacons can be anywhere)...outside the US, in those countries where 6m is authorized, they could allow data or other non voice modes..

However, it could be a pulse from a PC or other device with some digital clock timer in it...CPUs are bad about putting noise out into the low VHF bands....

I agree with Mark...if its 24/7, its likely something local to you or the neighborhood..depending on how strong it is, it could be in violation of Part 15...(it isnt send only prime numbers is it??

Chris
WB5ITT