[Elecraft] 1750hz tone?

[DM4iM]

Elecrafters,
i can not generate the 1750hz tone introduced with the latest firmware
changes.
PL TONE does not generate the tone automatically when on transmit (and
squelch was not open).
Holding PITCH while in transmit displays PL TONE, but does not generate
the tone either.
In a control receiver i hear a faint thump when holding PITCH.

Did i miss something?

PL DEV is 0.36
FW is latest beta
FM-Filter
K3 #28something (duh! forgot the ser-nr.)

Martin

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73, DM4iM