I fly out of KROC, and what you experienced makes some sense based on my
experience. I got a tour of the tower and approach/departure control with my
instructor last summer. Clearance/Delivery, Ground and Tower are all located
in the tower cab, close to each other (there isn't room for them to be any
other way. App/Dep is on a lower floor connected by a very sophisticated
tube through which they drop the strips.

In this case, they have a scope in the tower cab, but I think the normal
display is set to a shorter range than the scopes in the app/dep area. I'll
admit I didn't pay close attention to this, and it was a while ago, but that
was my recollection. It is probably adjustable in any event. At slow times,
it is common for one controller to act as two or more of Tower, Ground, and
Clearance/Delivery, but they seem to have different preferences as to
combining frequencies. Some continue to operate on all the normal
frequencies, some ask that you stay on one frequency, usually the tower
frequency, (mostly at arrival), I'll admit I've never run into an all
freq's combined on the atis.

Brad

"Arden Prinz" wrote in message
. com...

I was approaching class C airspace for landing at the primary airport

for which the class C airspace is designated and I listened to the

ATIS. The ATIS said "all frequencies are combined on

TowerFrequency". So I tuned to TowerFrequency and made my radio

call to approach. The response that I got was that I needed to call

approach on the approach frequency. So, I guess that begs the

question ... when the ATIS says "all frequencies are combined", which

frequencies are included in "all frequencies"?



"Arden Prinz" wrote in message
om...
I was approaching class C airspace for landing at the primary airport
for which the class C airspace is designated and I listened to the
ATIS. The ATIS said "all frequencies are combined on
TowerFrequency". So I tuned to TowerFrequency and made my radio
call to approach. The response that I got was that I needed to call
approach on the approach frequency. So, I guess that begs the
question ... when the ATIS says "all frequencies are combined", which
frequencies are included in "all frequencies"?

Thank-you in advance.