Author Topic: "ASTRO 95 Heavy" San Francisco Bay Area ATC audio  (Read 10558 times)

Offline Squawk 7700

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"ASTRO 95 Heavy" San Francisco Bay Area ATC audio
« on: September 22, 2012, 07:56:55 PM »
Composite clip of "ASTRO95 Heavy" San Francisco Bay Area flyover.
« Last Edit: September 23, 2012, 12:37:37 AM by Squawk 7700 »


Feeder:
KHWD Ground/Tower
KOAK Del/Gnd/Twr
KSFO NORCAL App Rwy 28L/R
KSFO Tower/Ground
NORCAL Approach (KOAK)
NORCAL Departure (KSFO/KOAK)
KSJC NORCAL Apr#2
ZOA Oakland Center (35/40/41)
RJTT App/Dep
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RJTT Twr/TCA + Ground

Offline Fryy

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Re: "ASTRO 95 Heavy" San Francisco Bay Area ATC audio
« Reply #1 on: September 23, 2012, 03:52:58 AM »
Thank you for putting this together. I enjoy your feeds!

Offline helijeff

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Re: "ASTRO 95 Heavy" San Francisco Bay Area ATC audio
« Reply #2 on: September 23, 2012, 06:50:53 PM »
This is awesome!
I wish someone would do this for the flight over LA.

Offline Squawk 7700

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Re: "ASTRO 95 Heavy" San Francisco Bay Area ATC audio
« Reply #3 on: September 24, 2012, 12:31:49 AM »
Thanks Fryy!
Feeder:
KHWD Ground/Tower
KOAK Del/Gnd/Twr
KSFO NORCAL App Rwy 28L/R
KSFO Tower/Ground
NORCAL Approach (KOAK)
NORCAL Departure (KSFO/KOAK)
KSJC NORCAL Apr#2
ZOA Oakland Center (35/40/41)
RJTT App/Dep
RJTT Tokyo Control
RJTT Twr/TCA + Ground

Offline DaveL

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Re: "ASTRO 95 Heavy" San Francisco Bay Area ATC audio
« Reply #4 on: September 28, 2012, 09:18:54 AM »
Anyone know what was meant by pilot's question at 1:11?  Sounded like  "Do you have a uniform".   ATC's answer was "Hang on a second I'll get it for you....  It's three fifty-four one.".     

Offline chuckles

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Re: "ASTRO 95 Heavy" San Francisco Bay Area ATC audio
« Reply #5 on: September 28, 2012, 10:11:24 AM »
Certainly not an expert here, but I'll give this one a try:  Most aircraft frequencies you/we listen to are broadcast over VHF (Very High Frequencies).   These aircraft mainly are in the range of 108-137 MHz.  Air Traffic Controllers also offer a simulcast transmission which is transmitted on a UHF (Ultra-High Frequency), usually in the range of 225-420 MHz.  This range is mainly used by the Military aircraft, while commercial and general aviation pilots use the VHF.  If using the UHF frequencies, you would only hear the controller side of the conversation, and miss all the chatter of the other aircraft calling on the VHF frequency.  The VHF frequencies are called “Victor”, and UHF frequencies are known as “Uniform”.  Astro 95 was given the VHF frequency of 125.35 and was requesting the “Uniform” (UHF equivalent from the controller) which is 354.1.  I would assume it was to focus on what they were trying to do in the cockpit, and not be disturbed by all the chatter of the news helicopters flying in the area who were also talking with the controller on the VHF frequency.   Most scanner listeners out there use the VHF mode to pick up both sides of the conversation.  Like I said earlier, the military/government are the main users of the aircraft UHF frequencies.  Perhaps the easiest way to remember it is military=uniforms, and UHF is shortened as “Uniform”.  Hope that helped a little.

Offline cessna157

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Re: "ASTRO 95 Heavy" San Francisco Bay Area ATC audio
« Reply #6 on: December 18, 2012, 09:59:15 AM »
@DaveL and chuckles,
that is correct.  A pilot asking for "Uniform" wants a UHF frequency where a majority of military transmissions take place.  "Victor" is VHF where civilians are
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