User's Manual

Synapsis Radar
with Nautoscan NX Pedestal
Operator Manual
4265.DOC020102
VI
Edition Sep 2015
2.7.2 Select T-SCE (ON/OFF) ............................................................................. 2-189
2.7.3 Select Route (Option) ................................................................................. 2-191
2.7.4 Select Zoom Menu ..................................................................................... 2-193
2.7.5 Select Sector Blanking (ON/OFF)............................................................... 2-194
2.7.6 System Clear ............................................................................................. 2-196
2.7.7 Performance Monitor (PMU) ....................................................................... 2-197
2.7.8 Magnetron Current ..................................................................................... 2-199
2.7.9 Test Alert .................................................................................................... 2-200
2.7.10 Senc Menu ................................................................................................. 2-201
2.7.11 Chart Info ................................................................................................... 2-205
2.8 Chart Radar Function ....................................................................................... 2-206
2.8.1 Chart .......................................................................................................... 2-207
2.8.2 Chart Info ................................................................................................... 2-208
2.9 Select ARPA Trial Manoeuvre .......................................................................... 2-213
2.10 Sea Scout (Option) ........................................................................................... 2-217
2.11 Alarm and Warning messages and handling .................................................... 2-222
2.11.1 Program Alarm Pop-Up Window – Picture Freeze Alarm –......................... 2-222
2.11.2 Alarm Messages ........................................................................................ 2-223
2.11.3 Warning Messages .................................................................................... 2-228
2.12 Working Around the Radar Antenna ................................................................. 2-231
3 Theory of Operation .......................................................................................... 3-1
3.1 Radar Plotting Terminology .................................................................................. 3-1
3.2 Radar Pattern Interpretation ................................................................................. 3-6
3.2.1 Range ............................................................................................................ 3-6
3.2.1.1 Sea Clutter, Rain Clutter ....................................................................................... 3-7
3.2.1.2 Interference Effect ................................................................................................ 3-8
3.2.1.3 Side Lobe Effect ................................................................................................... 3-9
3.2.1.4 Second trace false echo ..................................................................................... 3-10
3.2.1.5 Abnormal Atmospheric Conditions ..................................................................... 3-12
3.3 Vector Presentation ............................................................................................ 3-13
3.3.1 True Vector Mode ........................................................................................ 3-13
3.3.2 Relative Vector Mode ................................................................................... 3-14
3.4 Automatic Radar Plotting Aid (ARPA) ................................................................. 3-15