Autopeak - RESEARCH CONCEPTS RC3000 User Manual

RC3000 Antenna Controller

3.3.1.2.6 Autopeak

This screen defines how the autopeak functions of the LOCATE mode are configured.
ON:1
SIG:1
BAND:1
AUTOPEAK <0>DISABLED <1>ENABLED <2>+PEAK
ON:
The autopeak_enabled item defines if autopeak (SCAN or SEARCH) movements are to be performed as
part of the LOCATE movement.
If disabled (selection 0), the LOCATE procedure will move to the nominal target position without
attempting an autopeak procedure.
If enabled (selection 1), the Azimuth Scanning (3.2.2.3.3) or Spiral Search (3.2.2.3.4) Autopeak
movement will be attempted.
If selection 2 (+PEAK) is chosen, the terminal peakup movement described in 3.2.2.3.5 will also be
enabled. NOTE: Verify that the required conditions for terminal peakup (3.2.2.3.5) are present
before selecting this option.
SIG:
The autopeak_signal_source item defines which of the three signal source channels will be used to
recognize if a satellite is present.
BAND:
The autopeak_band item defines what RF band the receiving equipment is set for during an autopeak.
The band used will affect the size of steps used for autopeak movements.
SRCH_AZ:
SRCH_EL:
The search_azim/elev_limit items define the area that the spiral search pattern is allowed to search to
recognize a satellite. If a satellite is not recognized after searching the area defined by these limits, the
spiral search will return to the nominal target position. The larger the limits, the longer time a search
might take. If the limits are too small to account for azimuth target inaccuracy due to heading error or to
account for the amount of elevation movement an inclined orbit satellite may exhibit, the spiral search
may quit before moving over the satellite.
SRCH_TH:
This threshold item defines what the minimum signal strength indication is required for the search
procedure to recognize that a satellite is present.
SCAN_RG:
The scan_range item defines how many degrees to either side of the nominal azimuth target the scan
autopeak operation will search.
TILT:
This item specifies if additional movements are to be made during the LOCATE function in order to
characterize the pitch and roll of the platform. Refer to section 3.2.2.3.6 for discussion of this feature.
SRCH_AZ: 3
SRCH_EL: 3 SCAN_RG: 2
SRCH_TH:200 SCAN_TH:200
AUTOPEAK <0>DISABLED <1>ENABLED <2>+PEAK
SIGNAL SOURCE <1>RF <2>SS1 <3>SS2
BAND <0-C 1-Ku 2-CK 3-L 4-X 5-Ka 6-S>
SPIRAL SEARCH AZIM LIMIT <1-15 DEGREES>
SPIRAL SEARCH ELEV LIMIT <1-15 DEGREES>
SPIRAL SEARCH THRESHOLD <0-999>
SCAN RANGE <1-15 DEGREES>
POL TILT COMPENSATION <0>OFF <1>ON
106
Chapter 3
CONFIG-AUTOPEAK
TILT:0
Detailed Operation