Installation manual
Table Of Contents
- Front page
- Title page
- Table of contents (interactive)
- About this manual
- Simrad SH90
- Getting started
- Operational procedures
- Power on/off procedures
- Menu procedures
- Gain adjustment procedures
- Mode procedures
- Markers and symbols procedures
- Storage procedures
- Automatic search and tracking procedures
- User setting procedures
- Installation of options
- Software procedures
- Display modes
- Operating Panel
- Menu descriptions
- Parameters
- About the parameter dialogs
- Alphabetical list of parameters
- Parameter descriptions
- About
- AGC
- Beam
- Bearing (Display)
- Bearing (Horizontal)
- Bearing (Vertical)
- Colour Threshold
- Colours
- Data Source
- Date and time properties
- Dead Reckoning
- Default Setting
- Density
- Direction Indicator
- Display Gain
- Edit Gear (Purse)
- Edit Gear (Trawl)
- Edit School
- External Synchronisation
- Fish Alarm
- Gain
- Gear
- Heading
- Inspect Object
- Language
- Menu
- Message Bar
- Middle Pos(ition)
- Mode
- Mode Buttons
- Movements
- Noise Filter
- Palette
- Panel Backlight
- PP Filter
- Pulse Form
- Range
- Range (CatchView)
- RCG
- Recall
- Recall Mode
- Ruler
- Scale
- School Data
- Scientific Output
- Search Sector
- Search Step
- Slant Range
- Speed
- Stabilizer
- Status
- Store
- Store Mode
- Target Track
- Tilt
- Tip
- Track History
- Track Window
- Transducer
- TRU On/Off
- True Range
- TVG
- TX Power
- Units
- User Setting
- Wind Direction
- Zoom
- Zoom Scale
- Basic theory
- On-board maintenance
- Preventive maintenance schedule
- Wheelhouse units on-board maintenance
- Transceiver Unit on-board maintenance
- Power Supply Unit maintenance
- Hull Unit maintenance
- Index (interactive)
SimradSH90
Table1CWandFMpulselengths(inmilliseconds)fordifferentranges
Range
CWShortCW
Normal
CWLongFMAutoFMShort
FM
Normal
FMLong
500,20,41,23333
75
0,20,41,23333
1000,40,82,46366
1500,61,23,6123612
2000,81,64,8123612
3001,22,47,220
5
1020
4001,63,29,62461224
5002,04123281632
6002,44,814,440102040
750361848122448
1000482460153060
12004,89,628,860153060
15006123660153060
20008164860153060
AboutCW(ContinuousWave)
Thefrequencyofthetransmitterpulseishereconstant,andequal
totheoperationalfrequency.
Youcanselectbetweenthreedifferentpulselengths;Short,
NormalandLong.Inaddition,thepulselengthwillalsochange
automaticallyinaccordancewiththeselectedrange.Thetable
aboveshowsthedifferentpulselengthsgiveninmilliseconds
(ms).
AboutFM(FrequencyModulation)
IntheFMmode,thetransmitterpulseisfrequencymodulated.
Thismeansthatthefrequencyofthetransmittedpulsechanges
duringthetransmission.Thereceiverundertakesaspectrum
analysistocomparethereceivedechoeswiththetransmitter’s
frequencycode.Thisprovidesastableechopresentation,and
greaterabilityofdetectionasnoiseandreverberationarereduced.
Relatedtopics
•Horizontalmenuonpage93
•Verticalmenuonpage95
•Vertical180menuonpage96
150
323775/B