7754 Vol 2 Flyleaf - ICAO Public Maps

IV-CNS 4-1
Table CNS 4A — RADIO NAVIGATION AIDS ASSOCIATED WITH
THE BASIC ATS ROUTE NETWORK, TERMINAL AREA AND
INSTRUMENT APPROACH PROCEDURES
Note.— All of the requirements for facilities and
services associated with each of the newly created States in
the European region have been placed under listings
associated with those new States. It is understood that some
of these requirements may no longer exist and new ones
may need to be added. Such amendments will be carried
out through the normal amendment process in consultation
with the Secretariat.
Introduction
1. This table shows, State by State in alphabetical
order, those radio navigation aids which are required for
navigation on the agreed basic ATS route network and/or to
support terminal area and/or instrument approach
procedures.
2. All navaids listed are shown with their minimum
designated operational coverage (DOC) required in
connexion with the purpose(s) to be served by them.
3. Required DOCs listed in this table are for planning
purposes only and therefore should not, in any case, be used
for operational purpose(s).
4. In this context, the DOC provided (Supplement
Table COM 3 and COM 4 of Part IV — CNS of EUR
FASID refer) may be different from the requirement
contained in the Basic ANP, Table ATS 1 (19 of Part IV
— CNS of EUR FASID refers). While consistent with the
requirement, the implemented facility providing the service
may also be different (e.g. a VORTAC in lieu of a
VOR/DME).
Definitions
5. For the necessity of planning of radio navigation
aids, three phases of flight procedures have been defined
hereunder to be used within the context of Table CNS 4,
to indicate the purpose(s) for which the navaids are
required.
— En-route navigation/flight procedures (E). En-route
navigation/flight procedures carried out on the basic
ATS route network as defined in the Basic ANP,
Table ATS 1.
— Terminal area procedures (T). Terminal area procedures
are all procedures associated with arrival and
departure routes and/or segments of instrument
approach procedures, with the exclusion of the final
approach segments.
— Instrument approach procedures (A). The
instrument approach procedures include at minimum
the final approach segment for the corresponding
runway at aerodromes listed in Table AOP 1.
Therefore, an “A” reflects the basic requirement for
such navaids as shown in column 9 of Table AOP 1
(excluding ILS).
Explanation of the Table
6. Under each State, the required navaids are listed in
alphabetical order, followed by indications of their type,
their geographical coordinates, their designated operational
coverage (range and height) and their purpose(s).
7. The types of navaids are indicated in this table by
the following abbreviations:
DME: Distance measuring equipment
L: Locator
NDB: Non-directional beacon
VOR: VHF omnidirectional radio range.
8. The geographical coordinates in this table are
indicated to the nearest minute only.