Hi LF,
For a few nights I have been seeing this
signal on SpecLab & my grabber in the early evening. It resembles the NDB “Z”
from 508KHz which produces an offset near 507KHz.
This has a carrier at 507KHz & 1KHz
offsets at 508 & 506KHz, (see attachment) the QSB on the stated frequencies
is always matching suggesting the same source.
The carrier at 507 I have seen many times
in the early evening but nothing else which suggested an NDB until recently.
After about 1900 to 2000utc it fades out & is not seen again until the
following evening.
Can someone ID this “NDB”
signal or is it a “UNID” as I cannot find any reference to the
frequency.
I hope the reduced resolution shows the
signal OK.
73,
Gary - G4WGT - IO83QP.