Emily schrieb:

He didn't hear ANYTHING but a heterodyne.


Wrong. Please read the NTSB report before making such statements.


1705:53.4 APP KLM eight seven * zero five uh you are cleared to the
Papa Beacon climb to and maintain flight level nine zero right turn
after take-off proceed with heading zero four zero until intercepting
the three two five radial from Las Palmas VOR. (1706:08.2)

1706:09.6 KLM Ah roger, sir, we're cleared to the Papa Beacon flight
level nine zero, right turn out zero four zero until intercepting the
three two five and we're now (at take-off). (1706:17.9)


Of course this has nothing to do with the readablility of the transmission.

Stefan