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Radar Screen in Mountainous Terrain

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  #1 (permalink)  
     10-11-2008, 05:35 PM
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Default Radar Screen in Mountainous Terrain

Hi There,
I fly for a 121 carrier and I was coming out of GJT (Grand Junction, Co.)eastbound at night using runway 11 and DEN Center was giving us radar vectors soon after takeoff.

(We got radar vectors inbound on the north side of GJT with a vector to a left base over a ridge the night before to runway 11.)

Our EGPWS was covered in red on both sides as we were vectored through a 4 mile wide canyon on our climb out. Terrain peaks above 11,000 ft..

I have seen the round black radar screens in low country back in the day when we could visit you guys.

It occurred to me that I have never seen a radar screen in an area with mountains.

Could anyone post a picture of a radar screen that I can read that shows me what you guys see in mountainous terrain?? I would like to download the picture if that is possible. If you can get one of Grand Junction that would be great!

I can't express my gratitude to all of you for the help you have given us over the years.

nowake
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  #2 (permalink)  
     10-12-2008, 07:33 PM
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Default Re: Radar Screen in Mountainous Terrain

Keep pestering me, and I'll try to find the video map for GJT.
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     10-12-2008, 08:23 PM
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Default Re: Radar Screen in Mountainous Terrain

center radar display is different than what you remember. there isn't a pulsing line that sweeps around the scope. it's just a digital representation. there is no mountain ridges depicted. there are however, high peaks depicted as a hour glass missing the bottom. there is also boxes showing minimum ifr altitudes above terrain.
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     10-12-2008, 09:57 PM
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Default Re: Radar Screen in Mountainous Terrain

Ok Matty consider yourself pestered, I would love to get a pic of the area den center has of gjt.

Thank you Roddy, that's what I am concerned about, our boxes for msa (on our charts, they only show the highest peak in that box) are quite large and it seems you would need a detailed display to navigate someone around those peaks. so when you say the high peaks, should I assume the highest one in your mva box?? In other words you guys can't see the ranges, ridges or individual peaks? Low altitude warnings in that area not possible?

I guess I just need to see it to understand what we are doing. it's great having egpws now but we cannot under any circumstances navigate with it and it basically shows you a display based on time to impact but not where the highest peaks are. so the whole side of the screen for example could be red but you would not have any true idea what altitude would clear it. the highest peak would be in a 40 mile area or more depending on what range you have it set for.

thanks so much for your help with this, nowake
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