Chapter 8 Specifications
119
8.2 NDH-339/NDH-339B Float-free Capsule Unit
8.2.1 NDH-339B In case of Float-free capsule complying with MSC.493(104)
Performance
a) Interface
1) Standard IEEE802.3 (10Base-T/100Base-TX)
2) Protocol TCP/IP
b) Recording duration and capacity
1) Duration 48 hours
2) Capacity 80GB
c) Data recording interval
1) Sensor data Depends on the input from the sensors (usually 1
second)
2) Audio data Continuous (1 audio file per minute)
3) Image data 1 image file of each equipment per 15 seconds
(X-Band Radar, S-Band Radar, Main-ECDIS and
Sub-ECDIS)
d) EPIRB class Class 2
e) Locator light Flashing LED
f) Transmitter operation
1) Operating time 168 hours
2) Battery expiration date 4 years or 5 years after installing (follow the
Classification Society)
Please note that lifetime may be shorter depending
on environmental condition.
3) Battery specifications Lithium battery
DC +7.2V 18Ah
g) 406MHz transmitter
1) Frequency 406.031MHz ±2ppm
2) Output power 5W ±2dB
h) 121.5MHz transmitter
1) Frequency 121.5MHz
2) Output power Less than 100mW
i) AIS transmitter
1) Frequency
161.975MHz ±1kHz (AIS 1)
162.025MHz ±1kHz (AIS 2)
2) Output
power 1W
j) Hydrostatic release mechanism
1) Operating depth 2m to 4m
2) Expiration date 2 years after installing
k) Lanyard (mooring rope)
1) Length Higher than 5m
2) Breaking strength Higher than 25kg
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