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#11
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ILS sans identification
ArtP wrote:
On Sun, 04 Mar 2007 19:59:55 -0500, Roy Smith wrote: The GNS-480 decodes it for you and displays the letter code. I can't see any possible failure mode where the display would be wrong but I would be able to correct it by listening myself. Does it actually decode it or just display to info from its database. It decodes it. The SL30 doesn't even have a database. |
#12
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ILS sans identification
Jim Macklin wrote:
The FAA removes the ID when the radio facility is out of tolerance and "not in service" even though there may be a signal being broadcast [maybe part of testing or trouble shooting/repair] so it is my practice to have the audio on at low volume. The monitoring decoding by the hardware is very nice. The TEST case brings to mind an amusing story. I was in the backseat while my wife and her instructor were flying around trying to track the EMI VOR. They had the IDENT volume up so I could hear it sending. I finally had pity on them and let them know it was sending TEST. Shame on Margy, she's a HAM radio operator from the days when she had to copy CW at more than twice the rate the VOR sends to get her license. |
#13
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ILS sans identification
Ron Natalie wrote:
Jim Macklin wrote: The FAA removes the ID when the radio facility is out of tolerance and "not in service" even though there may be a signal being broadcast [maybe part of testing or trouble shooting/repair] so it is my practice to have the audio on at low volume. The monitoring decoding by the hardware is very nice. The TEST case brings to mind an amusing story. I was in the backseat while my wife and her instructor were flying around trying to track the EMI VOR. They had the IDENT volume up so I could hear it sending. I finally had pity on them and let them know it was sending TEST. Shame on Margy, she's a HAM radio operator from the days when she had to copy CW at more than twice the rate the VOR sends to get her license. But just that's the problem - the ID's are so slow that the thoughts slip to something else before decoding the code. When you're really good with Morse, the slow speeds with proper spacing start to be difficult to listen to. -- Tauno Voipio (CPL(a), also OH2UG) tauno voipio (at) iki fi |
#14
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ILS sans identification
The Instrument rating PTS in section VI.B - (Precision approaches)
says: "9. Selects, tunes, identifies, and monitors the operational status of ground and airplane navigation equipment used for the approach." So at least on checkrides you have a reference... Ed |
#15
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ILS sans identification
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#16
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ILS sans identification
On 03/07/07 17:46, Roy Smith wrote:
In article . com, wrote: The Instrument rating PTS in section VI.B - (Precision approaches) says: "9. Selects, tunes, identifies, and monitors the operational status of ground and airplane navigation equipment used for the approach." So at least on checkrides you have a reference... Ed But, it doesn't say anything about listening to the morse code. Reading "IHPN" on the front panel of the radio counts as "identifies" in my book. Yes. It seems about half the people on this thread thought the question was whether or not you needed to identify the station, and not do you need to identify by listening to the morse code, or can you just read the station ID on the avionics gear. |
#17
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ILS sans identification
On Mar 7, 5:51 pm, Mark Hansen wrote:
Yes. It seems about half the people on this thread thought the question was whether or not you needed to identify the station, and not do you need to identify by listening to the morse code, or can you just read the station ID on the avionics gear. "Anyone have a reference for a requirement to identify an ils or vor prior to it's use in the USA? Secondly, is there any reference to the type of identification required? For example, would checking that the primary flight display is displaying the correct identifier suffice? Or is there a stipulation for morse code audible type of identification? Stan" Perhaps because both questions were asked. Stan |
#19
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ILS sans identification
On 03/09/07 10:27, Robert Chambers wrote:
It's the same for doing a VOR approach, do you keep the NAV button on with the ident turned to an unobtrusive level while you are shooting the approach? If the Morse code goes away it's a clue that the navaid my be unreliable. Same thing for the ILS. Well, I was told to use all my nav equipment. So, I've got both VORs tuned in, as well as the ADF, etc. That's a lot of morse code going on in the cockpit during the approach. As far at the VORs and LOCs go, the identification was to make sure you've got the correct station. The absense of the flags are supposed to tell you that it is still working. As for identifying PRIOR to use, that's a no brainer. It will get you in trouble in an instrument ride if you DON'T identify a navaid when you want to use it. Not to mention the problem you can have if you accidentally get the wrong station ;-\ -- Mark Hansen, PP-ASEL, Instrument Airplane Cal Aggie Flying Farmers Sacramento, CA |
#20
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ILS sans identification
On Mar 5, 12:25 am, "Jim Macklin"
wrote: The FAA removes the ID when the radio facility is out of tolerance and "not in service" Perhaps the FAA does. Here is a fun video of an aborted landing in Apia Samoa. This video describes the post analysis of an avoided accident. Apparently, there is a maintenance mode (control monitor bypass mode) of an ILS glide slope transmitter. In this mode, any GS receiver tuned to that ILS will immediately conclude an on-glide slope condition. Regardless of position! The ident, of course, only indicates a functioning localizer. http://www.youtube.com/watch?v=GelRBhJ4gmI ak. |
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