Extra Mounting Components
If RTN 320s or hybrid couplers are not to be directly mounted on antennas, extra mounting components, including mounting brackets and flexible waveguides, are required.
Mounting brackets fix RTN 320s onto poles.
Figure 1 shows a mounting bracket.Figure 1 Mounting bracket
|1. Main bracket||2. Conversion bracket||3. Stay bolt||4. Double-headed nut||5. Auxiliary bracket|
Mounting brackets can fit onto poles with diameters ranging from 51 mm to 114 mm.
Mounting brackets are fixed on poles using main brackets, auxiliary brackets, stay bolts, and double-headed nuts. Conversion brackets are used to attach RTN 320s to main brackets.
Flexible waveguides are long, slender and rectangular in shape. They connect antennas to the flange ports on RTN 320s.
Figure 1 shows a flexible waveguide.Figure 1 Flexible waveguide
Table 1 lists the technical specifications of flexible waveguides.
|Length (m)||Maximum Attenuation (dB)||Maximum twist degree (°)||Minimum E-bend radius (mm)||Minimum H-bend radius (mm)||Minimum Voltage Standing Wave Ratio||Port Type (Antenna Side)||Port Type (RTN 320 Side)|
NOTE:The preceding table provides only the flexible waveguide specifications corresponding to the frequency bands supported by the integrated ODU. For the flexible waveguide specifications corresponding to the frequency bands supported by the extended ODU, see RTN XMC ODU Hardware Description.
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