When is just clicking PTT an acknowledgement?

Peter R. wrote in message ...
Nathan Young ) wrote:

Ie taxi instructions, hold-short, etc.

Really? Every towered airport (mostly in the Northeast US) in which I have
flown states in the ATIS "readback of all hold-short instructions
required." Additionally, I often hear the ground controller repeating a
hold short instruction and requiring the readback be verbatim.

I cannot imagine a ground controller allowing someone to double-click a
response to a hold short instruction.

Well, you cut the Roger/Wilco part of my post out in the response, so
it is a bit out of context. Most controllers aren't going to let a
double-click stand as a readback, but Roger/Wilcos are common.
However poor the practice - it happens regularly, particularly on
ground frequencies at Class D or Cs when they are not busy.

It also happens a lot by IFR pilots who do not seem to be on top of
their game -last weekend I heard a Mooney pilot who was just picking
up an IFR to get into Palwaukee. During the 15 minutes I was on his
frequencies, I heard him misread a clearance twice (leaving out final
destination). It was not caught/corrected by either controller, and
caused some minor headaches for the next controller in line.

-Nathan