Furuno FAR-2107 Series Service Manual page 149

2. Applicable model: FAR-2827W
Transceiver
Model
Type
FAR
RTR-081
-2827W
The De-icer (100VAC/1A) must be incorporated in the factory. (not the field job)
When mounting a performance monitor (PM-31), change the Gearbox cover with the
PM-31.
The Gearbox and Transceiver unit (RTR-081) are connected by a waveguide. Install the
Transceiver unit in such a way as to minimize the length of the waveguide for minimizing
the signal loss by the waveguide. And, it has to keep more than specified bent radius
because the loss becomes greater.
For De-Icer
100VAC 1
100/110/200/220VAC
1 50/60Hz
.
Fig. 1.2.7 Configuration of 25 kW X-band Waveguide Type Radar
Table 1.2.3 Configuration on 25 kW X-band Waveguide Type Radar
Output Type
(24 VDC)
25kW RSB-103
F U R U N O
50/60Hz
RU-3305
(Transformer)
Gear box
Motor
rpm PM
D8G-516 24 PM-31
PM-31
Length of Waveguide:
Recommended dimension is less than 30 m.
T/R unit
Specification of bend radius for FR-9
RTR-081
- E side radius: more than 200 mm
- H side radius: more than 400 mm
- Torsion: 10 deg./m or less
Scanner
RPU-013
1-12
1.2 Configuration
Radiator
Type
De-icer
(Length)
XN-20AF
(6.5 ft)
Yes
XN-24AF
(8 ft)