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ILS sans identification
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 |
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ILS sans identification
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#4
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ILS sans identification
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. |
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ILS sans identification
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#6
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ILS sans identification
Anyone have a reference for a requirement to identify an ils or vor
prior to it's use in the USA? 91.3? -- Thomas Borchert (EDDH) |
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ILS sans identification
ArtP,
Does it actually decode it or just display to info from its database. Actual decode. -- Thomas Borchert (EDDH) |
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ILS sans identification
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. AIM 1-1-3 c. The only positive method of identifying a VOR is by its Morse Code identification or by the recorded automatic voice identification which is always indicated by use of the word "VOR" following the range's name. Reliance on determining the identification of an omnirange should never be placed on listening to voice transmissions by the Flight Service Station (FSS) (or approach control facility) involved. Many FSSs remotely operate several omniranges with different names. In some cases, none of the VORs have the name of the "parent" FSS. During periods of maintenance, the facility may radiate a T-E-S-T code (- · ··· -) or the code may be removed 1-1-12. NAVAID Identifier Removal During Maintenance During periods of routine or emergency maintenance, coded identification (or code and voice, where applicable) is removed from certain FAA NAVAIDs. Removal of identification serves as a warning to pilots that the facility is officially off the air for tune-up or repair and may be unreliable even though intermittent or constant signals are received. NOTE- During periods of maintenance VHF ranges may radiate a T-E-S-T code (- l l l l -). NOTE- DO NOT attempt to fly a procedure that is NOTAMed out of service even if the identification is present. In certain cases, the identification may be transmitted for short periods as part of the testing. "Thomas Borchert" wrote in message ... | Anyone have a reference for a requirement to identify an ils or vor | prior to it's use in the USA? | | | 91.3? | | -- | Thomas Borchert (EDDH) | |
#9
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ILS sans identification
In article , Ron Natalie
wrote: Roy Smith wrote: In article , wrote: 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 I can't cite chapter and verse, but I never bother listening to the morse ident any more. 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. I don't know if it is a rule, but it is stupid not to. We had a plane fly into terrain because they were tracking not the Localizer but a nearby VOR. I didn't say I didn't identify it, I said I didn't listen to the morse. The box listens to the morse for me and displays it as letters. I check to make sure IHPN comes up in the display. If I'm flying something without the decode feature, then I listen myself. |
#10
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ILS sans identification
In article ,
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 actually decodes it, and it has to decode it twice in a row the same way before it display it. On a really weak signal, you can sometimes see it get one of the letters wrong, then shortly after that, correct it. |
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