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Author Topic: KSFO ZOA (35) Feed ARINC  (Read 322 times)

Offline diskus

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KSFO ZOA (35) Feed ARINC
« on: March 15, 2019, 10:51:50 AM »
HI all,

Ive been listening to this feed lately which handles the traffic leaving and returning to the Bay Area over the Pacific. On the list of frequencies for the feed it includes ARINC San Francisco 131.95. I realize the planes are too far out to hear by that point but was hoping to pick up some of the ARINC Controllers when the flight is handed off from Norcal. You can hear that hand off request from NORCAL. However I have yet to be able to hear any of the ARINC Controllers, Has anyone else ever heard any of them?

Thanks!!!



Offline JetScan1

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Re: KSFO ZOA (35) Feed ARINC
« Reply #1 on: March 15, 2019, 11:37:43 AM »
I seem to recall that when the feed first came out you could hear the ARINC operator loud and clear. You could hear them giving out the HF frequency assignments. Then it just stopped quite awhile ago.  Although this may have been replaced by using datalink now, although I have not seen any messages ? I'm guessing 131.950 was removed from the feed ? It would be nice to have it back on or better yet a dedicated feed.

JS   

Offline diskus

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Re: KSFO ZOA (35) Feed ARINC
« Reply #2 on: March 15, 2019, 07:38:29 PM »
Yes It seems it is no longer active somehow. Yes I agree it would be good to have it back online

found some info on the ARINC  https://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/systemops/ato_intl/documents/cross_polar/CPWG20/CPWG20_ARINC_Update.pdf

Thanks!
« Last Edit: March 15, 2019, 08:45:47 PM by diskus »

Offline Fryy

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Re: KSFO ZOA (35) Feed ARINC
« Reply #3 on: March 16, 2019, 01:31:43 AM »
Yes It seems it is no longer active somehow. Yes I agree it would be good to have it back online

found some info on the ARINC  https://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/systemops/ato_intl/documents/cross_polar/CPWG20/CPWG20_ARINC_Update.pdf

Thanks!

Thanks for sharing that. HF monitoring is one thing I know nothing about but have always been interested in. Seeing this PDF just made me realize what at least one of these antennas is in my hometown. Just outside of town, just SW of Travis AFB is this massive antenna farm that's been said to be old Naval Radio Relays. What exactly is an LDOC? Would being within 10 miles of this help in any reception on HF?

Offline RonR

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Re: KSFO ZOA (35) Feed ARINC
« Reply #4 on: March 17, 2019, 10:41:48 AM »
LDOC stands for Long Distance Operational Control and I believe uses these HF frequencies: 3494 6640 8933 11342 13348 17925 21964

They are used among other things for setting up company phone patches with an in-flight aircraft.  They are not used for typical ATC related communications such as issuing a route clearance, aircraft requesting an altitude change, weather deviation, etc.

Here's chart that you might find interesting:

Ron
Feed Provider:
ZBW/ZNY/ZDC (JFK Area) 1
ZBW/ZNY/ZDC (JFK Area) 2
ZBW/ZNY/ZDC (JFK Area) 3
ZBW/ZNY/ZDC (JFK Area) 4
ZBW (CLIPR32/HTO31)
ZBW (DXR19/SOUTHIE49)
KLGA Gnd
KLGA Dep
KLGA Twr
NY App (Liberty/North)
KLGA App (HAARP)
KLGA Del/ARINC/TCA

Offline diskus

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Re: KSFO ZOA (35) Feed ARINC
« Reply #5 on: March 18, 2019, 12:41:33 AM »
I do hear NorCal handing off to Arinc San Francisco, but I dont recall ever hearing them giving a frequency. Are the planes not establishing initial contact by voice with ARINC?

Offline RonR

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Re: KSFO ZOA (35) Feed ARINC
« Reply #6 on: March 18, 2019, 08:01:30 AM »
They should be contacting ARINC as soon as they are handed off so that they can give their initial position report estimates, get their enroute HF frequencies, etc.

Over here in New York I hear them getting handed off from ZNY 133.5 to ARINC 129.9 and ATC always gives the frequency.

I would assume that the procedure would be the same on the west coast.

Ron
Feed Provider:
ZBW/ZNY/ZDC (JFK Area) 1
ZBW/ZNY/ZDC (JFK Area) 2
ZBW/ZNY/ZDC (JFK Area) 3
ZBW/ZNY/ZDC (JFK Area) 4
ZBW (CLIPR32/HTO31)
ZBW (DXR19/SOUTHIE49)
KLGA Gnd
KLGA Dep
KLGA Twr
NY App (Liberty/North)
KLGA App (HAARP)
KLGA Del/ARINC/TCA

Offline RonR

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Re: KSFO ZOA (35) Feed ARINC
« Reply #7 on: March 18, 2019, 10:48:45 AM »
Hello again diskus,

Well, I took some time and listened in to ZOA 35...and it turns out you were right.  ZOA (Oakland Center, not NORCAL) simply tells westbound flights "radar service terminated, frequency change approved" and does not provide a frequency for ARINC.  This happened three times in the short time I was listening.  The pilots must already know what the ARINC frequency will be when they exit ZOA airspace.

And I also didn't hear any of the aircraft acknowledge ZOA's 'handoff' message so clearly they were already too far away to be heard by that feed radio.  And needless to say, I also didn't hear anything on the ARINC frequency.

Ron
Feed Provider:
ZBW/ZNY/ZDC (JFK Area) 1
ZBW/ZNY/ZDC (JFK Area) 2
ZBW/ZNY/ZDC (JFK Area) 3
ZBW/ZNY/ZDC (JFK Area) 4
ZBW (CLIPR32/HTO31)
ZBW (DXR19/SOUTHIE49)
KLGA Gnd
KLGA Dep
KLGA Twr
NY App (Liberty/North)
KLGA App (HAARP)
KLGA Del/ARINC/TCA

Offline diskus

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Re: KSFO ZOA (35) Feed ARINC
« Reply #8 on: March 18, 2019, 11:33:09 AM »
I have heard the same. ZOA uses the language you stated and at other times " Radar services terminated, contact San Francisco ARINC"  or something like "contact enroute communications" again without frequency. At times I have picked up a very faint reply by the plane.   but never  anything from ARINC to follow
« Last Edit: March 18, 2019, 11:35:45 AM by diskus »

Offline diskus

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Re: KSFO ZOA (35) Feed ARINC
« Reply #9 on: March 20, 2019, 07:41:29 PM »


Over here in New York I hear them getting handed off from ZNY 133.5 to ARINC 129.9 and ATC always gives the frequency.



Hi Ron,

Is there a feed with those 2? I cant seem to find 129.9?

Mike

Offline RonR

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Re: KSFO ZOA (35) Feed ARINC
« Reply #10 on: March 20, 2019, 08:35:13 PM »
Hi Mike,

Yes, the ARINC frequencies can be found here:

https://www.liveatc.net/search/?icao=kjfk

It will be at the top of the list.  Unfortunately, they are currently down and unavailable.  Hopefully they'll be bck up soon.

Ron
Feed Provider:
ZBW/ZNY/ZDC (JFK Area) 1
ZBW/ZNY/ZDC (JFK Area) 2
ZBW/ZNY/ZDC (JFK Area) 3
ZBW/ZNY/ZDC (JFK Area) 4
ZBW (CLIPR32/HTO31)
ZBW (DXR19/SOUTHIE49)
KLGA Gnd
KLGA Dep
KLGA Twr
NY App (Liberty/North)
KLGA App (HAARP)
KLGA Del/ARINC/TCA

Offline diskus

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Re: KSFO ZOA (35) Feed ARINC
« Reply #11 on: March 20, 2019, 08:37:59 PM »
Thanks!

Offline RonR

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Re: KSFO ZOA (35) Feed ARINC
« Reply #12 on: March 20, 2019, 10:40:21 PM »
No problem!
Feed Provider:
ZBW/ZNY/ZDC (JFK Area) 1
ZBW/ZNY/ZDC (JFK Area) 2
ZBW/ZNY/ZDC (JFK Area) 3
ZBW/ZNY/ZDC (JFK Area) 4
ZBW (CLIPR32/HTO31)
ZBW (DXR19/SOUTHIE49)
KLGA Gnd
KLGA Dep
KLGA Twr
NY App (Liberty/North)
KLGA App (HAARP)
KLGA Del/ARINC/TCA

Offline RonR

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Re: KSFO ZOA (35) Feed ARINC
« Reply #13 on: March 21, 2019, 09:37:03 PM »
Mike:

In case you weren't aware, the NY ARINC feeds are back online.

Ron
Feed Provider:
ZBW/ZNY/ZDC (JFK Area) 1
ZBW/ZNY/ZDC (JFK Area) 2
ZBW/ZNY/ZDC (JFK Area) 3
ZBW/ZNY/ZDC (JFK Area) 4
ZBW (CLIPR32/HTO31)
ZBW (DXR19/SOUTHIE49)
KLGA Gnd
KLGA Dep
KLGA Twr
NY App (Liberty/North)
KLGA App (HAARP)
KLGA Del/ARINC/TCA

Offline diskus

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Re: KSFO ZOA (35) Feed ARINC
« Reply #14 on: March 21, 2019, 09:39:48 PM »
I have been listening, very very busy. It would be great to gave the pacific version back

Offline diskus

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Re: KSFO ZOA (35) Feed ARINC
« Reply #15 on: March 22, 2019, 09:28:46 AM »
 Sounds like some of the planes on 129.9 are a pretty good ways out
« Last Edit: March 22, 2019, 12:25:03 PM by diskus »