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NOTE:  This does not imply that the controller should continuously check the position. Merely that a suitable range setting be available to the controller.
5.1.2  Recommendation: Where an equipment sub-system, under the control of the user, uses the monitor to assess collimation errors, the monitor shall be within the nominal coverage of the radar. If the monitor is at a range greater than the normal range displayed to the controller, a reporting procedure shall be in place (525).
5.1.3  Recommendation: Where a sub-system, not under the control of the user, uses the monitor to assess collimation errors, the monitor shall be within the nominal coverage of the radar. If the monitor position is outside the normal defined area displayed to the remote controller, a reporting procedure shall be in place. This procedure shall report alarms from the system provider to the service user. The originator of the service, not the remote user, shall identify and notify the remote users of any collimation errors determined (526).
5.2  Recommendation: The SSR monitor should be located at a range greater than 4 km from the radar head, unless otherwise justified (527).
5.3  Recommendation: The monitor should be set up to report its true position in range. This allows easier co-ordination with other users. Where operational considerations make this undesirable, the monitor should not be visible from any other operational radar service (528).
NOTE:  If this is not possible, a written agreement to the installation shall be obtained from the owners of the affected systems (529).
5.4  The Mode A code for the SSR Site Monitor shall be 7777 unless specific approval is granted for a different code (530).
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SUR 05  Primary Approach Radar Markers Engineering Requirements
Part 1 Preliminary Material
1 Introduction
When a primary airport radar is intended to be used for Surveillance Radar Approaches (SRA), a particular configuration of fixed returns or markers is required (531). This document sets out the requirements for siting of these markers.
2 Scope
This document applies to all radar sensor equipment providing data used at an Aerodrome for SRA procedures and requiring approval under Article 205 of the ANO.

Part 2 Requirements
3  Safety Objective
To confirm the correct position of the SRA approach line (1711).
4  Marker Requirements
Any radar fitted with a processor to extract fixed clutter will not see passive targets, therefore, one of the following shall be provided: a) A raw radar feed for calibration purposes. This feed shall be independently aligned with the processed radar feed (532). b) An active test marker (533). c) Areas of radar coverage which are inhibited from processing (534).
5  Required Marker Siting
5.1  There are no requirements for extra markers for an SRA with termination range of 2 NM or greater from threshold (535).
5.2  For approach radar services providing SRA less than 2 NM but not less than 1 NM, bracket markers are not required. However, centreline markers, as described in paragraph 5.3.1.1, shall be provided (536).
5.3  For approach radar services providing SRA less than 1 NM, two sets of markers shall be provided (537):
a) A set of centreline markers (538); and
b) A set of bracket markers (543).

5.3.1  Centreline Marker Siting
There shall be two non-permanent markers available (539). These shall be located as
follows:
a) Within 2 degrees of the applicable approach centreline (540).
b) Between 3 and 6 NM of the applicable touchdown point (541).
c) Not within 1 NM of each other (542).
NOTE: For airports with reciprocal approaches, one permanent marker on each

approach path may be used.
5.3.2  Bracket Marker Siting
There shall be two permanent markers available that enable the identification of runway touchdown point (544). These permanent markers shall be positioned equidistant from the runway centreline at the instrument touchdown point (545). The distance from the runway edge shall be the minimum commensurate with runway operations but not closer than 15 metres from the runway edge (546).
　
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本文鏈接地址：CAP 670 Air Traffic Services Safety Requirements 2(88)