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)
|

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.

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

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

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.