Navman FISH 4500/4600 User Manual

Use this feature when the FISH 4500/4600 is 
connected to other Navman instruments through 
NavBus or any compatible NMEA instrument.

Press MENU once or more until the Setup menu 
is displayed, then select Comms:  

NMEA is generally used with third party instru-
ments. Select to transmit NMEA sentences  (see 
Appendix A - Specifications). 

Use this to specify which NMEA sentences will 

be transmitted (see Appendix A - Specifications 
and section 5-7 Data display, for information 
about how to display NMEA data).

NavBus is the preferred method for connecting 
the FISH 4500/4600 to other Navman instru-
ments. Select if the instruments are connected 
using NavBus. 

Use this when a group of Navman instruments 
are connected together using NavBus, to specify 
a group of instruments for backlighting, if required. 
Then, if the backlight setting on one instrument 
in the group is adjusted, the other instruments 
change automatically. Otherwise, select 0.

Press MENU once or more until the Setup menu 
is displayed, then select Calibrate:   

The fuel options can 
be calibrated only 
when the optional sin-
gle or twin engine kit 
is installed on petrol/
gasoline engines.

Calibration may be required because different hull 
shapes have different flow characteristics. 

Obtain an accurate measurement of the boat’s 
speed from a GPS receiver; or by following another 
boat  travelling at a known speed; or by making a 
timed run over a known distance. 

Note: for accurate calibration:

• 

The speed from a GPS receiver should be 
greater than 5 knots.

• 

The speed from another paddlewheel trans-

ducer should be between 5 and 20 knots.

• 

Best results are achieved in calm conditions 

where there is minimal current (best at high or low 
tide).

Use the cursor keys to display the speed readout 
box, then increase or decrease the readout to 
match the independent speed value. 

Increase this setting to stabilise an erratic speed 
reading. Decrease to improve reading respon-
siveness. The speed filter can be set from 0 to 
30 seconds.

The factory settings should be sufficiently accurate 
for normal usage. To calibrate the temperature 
readout, first measure the water temperature with a 
thermometer known to be accurate.

Use the cursor keys to display the temperature 
readout box, then increase or decrease the value 
to match the measured temperature. The tempera-
ture can be set from 32° to 99.9°F (0° to 37.7°C) 
with a resolution of 0.1° unit.

To change the units between °F (Fahrenheit) or °C 
(Celsius), see section 3-6 Setup > Units.

 

Increase this setting to stabilise an erratic tem-
perature reading. Decrease to improve reading 
responsiveness. The temperature filter can be 
set from 0 to 30 seconds.

FISH 4500/4600 Installation and Operation Manual

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NAVMAN