Marport M4 - Page 40

M4 - Mx computer System | V2 | Appendix
Frequencies and intervals
The diagrams below show the bandwidth of the different types of Marport sensors and intervals
you must respect when adding other sensors.
Figure 1: PRP sensors (e.g. Catch sensor, Trawl Speed, Spread sensor...)
Example: If the frequency of the sensor is 40kHz, there should be no sensors between 39.9-40kHz
and 40-40.1kHz.
Figure 2: NBTE sensors (e.g. Speed Explorer, Trawl Explorer, Catch Explorer, Door Sounder)
Example: If the frequency of the sensor is 40kHz, there should be no sensors between 39.8-40kHz
and 40-40.6kHz.
Figure 3: HDTE narrow band mode
Example: If the frequency of the sensor is 40kHz, there should be no sensors between 39.8-40kHz
and 40-41kHz.
Figure 4: HDTE wide band mode
Example: If the frequency of the sensor is 40kHz, there should be no sensors between 39.8-40kHz
and 40-42.6kHz.
Frequency
of the sensor
Bandwidth
Mandatory distance with
other sensors
Recommended distance
with other sensors
| 39