2 buzzers can it be?
There has long been speculation that there are 2 or more
transmitter sites for the buzzer. Conflicting reception reports,
people saying the buzzer did not switch off when a message occured
and other reports have often left us scratching our heads in
explanation. Yesterday we heard a test count broadcast on the
buzzers frequency while the buzzer was still running. This could be
mixed at the broadcast source of course and offers no proof...
We can clearly see in the above spectrum image a second buzzer
being activated which is slightly off frequency and slowly creeps
onto the 4.625 kHz expected.
S28 The Buzzer UVB-76 Two buzzer oddity
We finnally caught them! This is fantastic news as it explains
many oddities about the buzzer and casts doubt on a few. As always
UVB-76 never fails to suprise and we are slowly learning more and
more secrets about it. However this makes triangulation twice as