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Author Topic: LAX feed  (Read 11168 times)

Offline Chananya Freedman

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LAX feed
« on: January 09, 2009, 05:42:19 PM »
stuck on ATIS frequency.

Chananya



Offline tyketto

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Re: LAX feed
« Reply #1 on: January 09, 2009, 05:51:51 PM »
stuck on ATIS frequency.

Chananya

For the feed provider: before fixing this, could you post what the ATIS frequency that the scanner is on? I'm thinking that you have only one of the two frequencies locked out of the scan but not the other. My guess is that you have 135.65 locked out but not 133.8 or vice versa.

BL.


Offline bluecrewfan08

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Re: LAX feed
« Reply #2 on: January 09, 2009, 09:28:28 PM »
When it gets stuck on ATIS, it is one 133.9  North Complex.

Rob

Offline tyketto

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Re: LAX feed
« Reply #3 on: January 10, 2009, 01:21:33 PM »
When it gets stuck on ATIS, it is one 133.9  North Complex.

Rob

I keep getting North Tower and that atis confused. North complex is 133.8. So if you look at the scanned freqs, is 135.65 locked out, and not 133.9?

BL.

Offline bluecrewfan08

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Re: LAX feed
« Reply #4 on: January 11, 2009, 03:55:11 PM »
North Tower is 133.9

When it gets stuck on ATIS, it is on 133.9

I only scan between 2 freqs.  133.9 and 120.95

If you search my other posts, you can get a more complete explanation of it. It has to do with reduced traffic after midnight, and ATIS being broadcast on the north tower freq, but my scanner not releasing it.

Rob

Offline Chananya Freedman

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Re: LAX feed
« Reply #5 on: January 11, 2009, 07:00:39 PM »
I understand that 133.9 is north tower (My knowledge from listening to my scanner).  Also, 133.8, I think is ATIS.  (Info from Rob).  What is 135.65 supposed to be?  The only thing I know that has a 65 after the decimal point a lax is north ground 121.65.  can we get the confusion fixed?  Thanks a lot.

Chananya

Offline tyketto

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Re: LAX feed
« Reply #6 on: January 11, 2009, 08:39:03 PM »
I understand that 133.9 is north tower (My knowledge from listening to my scanner).  Also, 133.8, I think is ATIS.  (Info from Rob).  What is 135.65 supposed to be?  The only thing I know that has a 65 after the decimal point a lax is north ground 121.65.  can we get the confusion fixed?  Thanks a lot.

Chananya

From AirNav:

Quote
Airport Communications

UNICOM:    122.95
WX ASOS:    PHONE 310-568-1486
LOS ANGELES GROUND:    121.65(NORTH-CMPLX) 121.75(SOUTH CMPLX) 327.0
LOS ANGELES TOWER:    119.8(HELICOPTERS) 120.95(SOUTH CMPLX) 133.9(NORTH CMPLX) 239.3(NORTH CMPLX) & HELI 379.1(SOUTH CMPLX)
SOCAL APPROACH:    124.3 APCH FM WEST/DEP TO WEST 124.5(225-044) 124.9(090-224) 128.5(045-089)
SOCAL DEPARTURE:    124.3(045-224) 124.3 APCH FM WEST/DEP TO WEST 125.2(225-044)
CLEARANCE DELIVERY:    121.4 327.0 120.35
D-ATIS:    133.8(ARR 310-646-2297) 135.65(DEP 310-646-2297)
EMERG:    121.5 243.0
IC:    120.95(SOUTH CMPLX) 133.9(NORTH CMPLX) 239.3(NORTH CMPLX) & HELI 379.1(SOUTH CMPLX)
SAMSO FLT OPS:    372.2
SPECIAL FLIGHT RULE AREA:    128.55

That should answer your question.

Quote
If you search my other posts, you can get a more complete explanation of it. It has to do with reduced traffic after midnight, and ATIS being broadcast on the north tower freq, but my scanner not releasing it.

Didn't catch that one before.. apologies.

That is interesting. Why would they throw the ATIS up on a tower frequency? When one controller closes a given frequency, the given norm is that the other person will assume control of that frequency (combine the frequency), broadcast on it, and anyone listening to that frequency will hear him, but pilots on the other frequency he is broadcasting on will not hear that one. That's what happens at least at KLAS. When 118.75 (Tower) closes, the other Tower (119.9) will combine all tower operations on his frequency. He'll broadcast on both 118.75 and 119.9. Anyone listening to him on 118.75 won't hear other pilots on 119.9, and vice versa, but both will hear the controller. Why LAX doesn't do that is weird, especially when they have 2 dedicated ATIS frequencies.

BL.

Offline bluecrewfan08

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Re: LAX feed
« Reply #7 on: January 11, 2009, 11:18:31 PM »
"That is interesting. Why would they throw the ATIS up on a tower frequency? When one controller closes a given frequency, the given norm is that the other person will assume control of that frequency (combine the frequency), broadcast on it, and anyone listening to that frequency will hear him, but pilots on the other frequency he is broadcasting on will not hear that one. That's what happens at least at KLAS. When 118.75 (Tower) closes, the other Tower (119.9) will combine all tower operations on his frequency. He'll broadcast on both 118.75 and 119.9. Anyone listening to him on 118.75 won't hear other pilots on 119.9, and vice versa, but both will hear the controller. Why LAX doesn't do that is weird, especially when they have 2 dedicated ATIS frequencies."

Your guess is as good as mine.  What makes it most perplexing is that it is intermitent.

Rob




Offline Chananya Freedman

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Re: LAX feed
« Reply #8 on: January 12, 2009, 06:22:59 PM »
Hi guys.  let me add a new twist to this...  When the other person near LAX was hosting the feed, he never had this problem.  He was a little further away so his sound quality wasn't as good but he didn't have this problem.  In my mind this is one of the strangest radio related problems i have ever seen.

Chananya

Offline RIVERSMVP09

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Re: LAX feed
« Reply #9 on: February 15, 2009, 01:55:19 AM »
I think LAX combines ground and tower after midnight. SJC combies ground and tower until 630 am.

Offline tyketto

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Re: LAX feed
« Reply #10 on: February 15, 2009, 04:24:41 AM »
I think LAX combines ground and tower after midnight. SJC combies ground and tower until 630 am.

This varies from airport to airport. LAX runs on 121.65 and 120.95 after midnight, then all combines on one frequency sometime overnight.

At LAS, ground combines on 121.1 after 9pm, tower combines on 119.9 or 118.75 (depending on which runways are in use). After 1pm, clearance and ground combine on 121.1. after 2, all are on the Tower frequency.

A Call to the ATIS phone number will tell all.

BL.