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Author Topic: Montreal Feed Question  (Read 3585 times)
MIAMIATC
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« on: January 19, 2005, 02:15:59 PM »

Is there a high altitude frequency mixed in in the YUL feed.I think I have heard an American Flight (90) transiting to 123.825 on 1-18-2005 at flight level 330.Just wondering if it is 135.6 MHZ
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Jonathank
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« Reply #1 on: July 20, 2015, 07:06:15 AM »

Which Montreal feed are you referring to?
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JetScan1
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« Reply #2 on: July 20, 2015, 07:51:51 AM »

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Which Montreal feed are you referring to?

That thread was from 2005, over 10 years ago. I think the question is referring to an old Montreal setup that doesn't exist anymore.

To answer the question, 10 years late, I seem to recall that 135.60 used to be a Terminal frequency, then they switched it to a Center frequency initially using it for high altitude airspace, then switched it again to a low altitude sector close to around 10 years ago.

135.60 is now on the current Montreal Center radio, it's the Center frequency you can hear the controller on (faint), it's cross-coupled with 126.575/133.900 and 128.775 and sometimes with 134.975, these are all low altitude sectors. As far as I can tell there are no high altitude frequencies on this setup.

It's unfortunate that they decided to keep the Montreal Terminal frequencies on the current Center feed as they are already being scanned on the other Montreal radio and are quite busy and block out a lot of the Center transmissions.


  

« Last Edit: July 21, 2015, 10:48:18 PM by JetScan1 » Logged
JetScan1
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« Reply #3 on: July 20, 2015, 09:45:43 AM »

On the subject of Montreal. Just a suggestion.

I see there is a Montreal feed dedicated to the de-icing frequencies that appears to be live at this time. These frequencies are not used in the summer and after a quick check of the archives I could not find any transmissions on this feed (some splashover).

The Montreal Center feed also includes 120.425, this is a Terminal frequency that is usually cross-coupled with 125.15 and 134.15, and is quite busy at times blocking out the Center transmissions. 125.15 and 134.15 are already on the Montreal Terminal radio which is already very busy with the other Terminal frequencies.

Any chance as a test you could remove 125.15 and 134.15 from the Terminal radio and remove 120.425 from the Center radio, then put 120.425, 125.150, 134.150 on the radio that is being used for the de-ice freqs.

Then on the Center radio add to the existing frequencies 134.400, 127.875, 133.225, 123.925, 134.975, 132.350, 126.575. This would give you complete Center coverage high and low in the Montreal area. (You may or may not hear the controller on 134.400 the RCAG is listed as Montreal but it's not near the airport).

Just as a test to see what it sounds like ?

« Last Edit: July 20, 2015, 04:05:14 PM by JetScan1 » Logged
dave
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« Reply #4 on: July 21, 2015, 07:33:12 AM »

On the subject of Montreal. Just a suggestion.

I see there is a Montreal feed dedicated to the de-icing frequencies that appears to be live at this time. These frequencies are not used in the summer and after a quick check of the archives I could not find any transmissions on this feed (some splashover).

The Montreal Center feed also includes 120.425, this is a Terminal frequency that is usually cross-coupled with 125.15 and 134.15, and is quite busy at times blocking out the Center transmissions. 125.15 and 134.15 are already on the Montreal Terminal radio which is already very busy with the other Terminal frequencies.

Any chance as a test you could remove 125.15 and 134.15 from the Terminal radio and remove 120.425 from the Center radio, then put 120.425, 125.150, 134.150 on the radio that is being used for the de-ice freqs.

Then on the Center radio add to the existing frequencies 134.400, 127.875, 133.225, 123.925, 134.975, 132.350, 126.575. This would give you complete Center coverage high and low in the Montreal area. (You may or may not hear the controller on 134.400 the RCAG is listed as Montreal but it's not near the airport).

Just as a test to see what it sounds like ?



I'm running that feed equipment...could take a while, but we'll look into it.

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JetScan1
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« Reply #5 on: July 21, 2015, 08:46:23 AM »

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I'm running that feed equipment...could take a while, but we'll look into it.

Thanks dave !
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dave
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« Reply #6 on: July 27, 2015, 10:11:58 PM »

Some of these changes (and some new freq additions) are in the queue and should be done this week.  More once it's done.
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