Simrad MX525A, Руководство пользователя

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Installation | 13
Antenna Cable Selection
The table below gives recommendation on coaxial cables
that can be used for the MGL-4 GPS antenna. It is
important to keep the attenuation in the cable as low as
possible. The maximum allowable cable and connector
loss is 15 dB.
Coax cable
type
Max cable
length (m)
Diameter
(mm)
Weight
(kg/100m)
RG58 15 5.0 2.6
SAT45 45 5.5 2.6
RG223 25 5.4 5.5
RG214 45 10.8 18.5
LMR400 80 10.3 13.3
The chart below shows the antenna coax cables offered
by Simrad:
Part number Description
3508 100 95780 15 meter, SAT45 cable (TNC-TNC)
3508 100 96010 20 meter, SAT45 cable (TNC-TNC)
3508 100 95910 30 meter, SAT45 cable (TNC-TNC)
3508 100 96020 45 meter, SAT45 cable (TNC-TNC)
Special order >45 meter, Low-loss, Antenna cable
(TNC-TNC)
Power Requirement
External power supplied to the MX525A must be within 9-
32 VDC for best operation. To protect the circuitry in the
MX525A, the voltage level must be within these limits.
Negative grounding is required. The MX525A draws less
than 300 mA at 12 VDC. An in-line fuse or circuit breaker
rated at 2 amp. is recommended for overload protection.
When the MX525A is connected to an MX CDU, the 12
VDC antenna power is supplied by the CDU unit.