> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of Thompson, Steve (SCI
TW)
>
> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of Chase, John
>
> <snip>
>
> Actually, commercial airliners use the same VHF nav/comm band
> as general aviation for air traffic control and navigation
> purposes. The military uses the UHF nav/comm band.
>
> <snip>
>
> I've often wondered about that. I have sometimes heard
> Cleveland (CLE) approach, and Akron-Canton approach (CAK)
> talking to some airliner (United, American, etc.) but never
> heard them talking back (same kind of thing with Pittsburgh,
> Columbus, Indy, etc.).
That's known as "frequency separation". :-)
> Now I know that some controllers are
> ganged to handle two or more radios (I've even been at CAK
> and Springfield MO after 10PM and the approach, tower and
> ground were all the same person - you talk about a bored
> controller). But I never heard the Big Iron pilots talking
> and I was supposed to be following them (visual approach) --
> You should try this when vis is < 2 mi and they are doing
> 160+Knots and you are firewalled doing 120Knots and you're #2
> for the ILS ;-)
Been there; done that. "Technical nit": "Visual approach" requires
"VFR conditions" (cig >= 1000 and vsby >= 3mi). The equivalent in
less-than-VFR conditions is called "contact approach" (or that's the way
it was pre-PATCO-strike; doubtless a lot of rules and descriptions have
changed since then).
> Now, at Youngtown OH and Mansfield OH (both are C130 bases or
> were until very recently), I heard those guys all the time on
> the "regular" low freqs for approach, tower and ground.
Best I can recall, the "regular" freqs for ground and tower were 121.9
and 118.3 respectively for VHF; 360.2 and 340.2 for UHF. I don't
remember a "regular" approach control frequency, though it seems most of
the facilities where I worked used 120.7 as the "primary".
-jc-
"Reagan Re-tread"
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