Version 1.0
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Antenna heating system SOA-1022
2.2
Antenna heating unit
AHU is an RF transparent thermal insulating dome with TH and temperature
sensors installed inside it. Figure 3 describes a general view of AHU (for example,
AHU-1).
Depending on size (see Table 2 and Figures А.1–А.3) and quantity of TH, AHU
may have three types:
‒
AHU-1 – small, two THs;
‒
AHU-2 – medium, four THs;
‒
AHU-3 – large, four THs.
From two to four THs ensure heating of each antenna (Figure 3, position 2). AHU
may be delivered with a dome (Figure 3, position 5), and without it. Temperature sensors
are located near THs to monitor current AHU temperature (Figure 3, position 4).
Use data connectors (Figure 3, position 3) and power input connectors (Figure 3,
position 1) to connect KP.
If AHU is applied together with a dome, connect AHU through cable glands at the
bottom of the dome (Figure 3, position 6), and mount it – using mounting studs (Figure 3,
position 7).
Figure 3 – AHU-1
Every AHU has an ID number, displayed on the nameplate and set using
DIP-switch. Description of DIP-switch positions and ID number of AHU are shown in
Figure 4.
