When to acknowledge ATC

"A Guy Called Tyketto" wrote in message
m...

If ATC tells you to remain outside a certain class airspace,
you must read that back and remain outside that airspace until he
clears you into it.


If ATC tells you to remain outside you have to remain outside, whay
requires you to read it back?



RADAR CONTACT is not required. Altimeter setting is not required.
Readback is not required. You know he hears you because he responded
to your radio call with your call sign. I'm having a hard time
following your argument.


Actually, for Class B, it does. AIM 3-2-3.d.2 and 3-2-3.e back that:

3-2-3.e: ATC Clearances and Separation. An ATC clearance is
required to enter and operate within Class B airspace. VFR
pilots are provided sequencing and separation from other
aircraft while operating within Class B airspace.

For Class C, AIM 3-2-4.3 states that 2-way comms must be
established, and that is the clearance into/through Class C. But, if
ATC tells you to remain outside of it, you *MUST* remain outside of it
until told otherwise. Plus, a readback of that would be required.


Where's the requirement for radar contact? Where's the requirement for a
readback?