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)
|