Sea Tel ST144-21, Installation And Operation Manual

Page: 105 / 142

ST144-21 C/Ku-Band TVRO ST144-21 Technical Specifications
14-1
14. ST144-21 Technical Specifications
The technical specifications for your Series Above Decks Equipment subsystems are listed below: Refer to your ACU manual for
its’ Specifications.
14.1. 14400 Antenna Reflector
Type: Fiberglass 4-Section solid parabola
Diameter (D): 3.6 M (141 in.)
Focal Length: 1.32 M (52.0 in.)
f/D: 0.375
Weight (bare): 90.7 Kg (200 pounds) MAX
Weight (w/feed): 114 Kg (250 pounds) MAX
RX Gain: 42.2 dB at 4 GHz
RX Gain: 49.6 dB at 12 GHz
14.2. Feed Assemblies
14.2.1. TVRO-21 Dual C-Band / Quad Ku-Band Feed Assembly
Type: Prime focus
Receive frequency: 3.7-4.2 GHz C Band
10.7-11.7 GHz Ku Low Band
11.7-12.75 GHz Ku High Band
C-Band LNB
RF Frequencies: 3.7-4.2 GHz
IF Frequencies: 950-1450 MHz
LO Frequency 5.15 GHz
Noise Figure 15 deg C, typical
Quad Ku-Band LNB Assembly
Type: Quad output
LNB Manufacturer: Brainwave, but may vary
Low Band High Band
RF Frequencies: 10.7 - 11.7 GHz 11.7 - 12.75 GHz
IF Frequencies: 950 - 1950 MHz 1100 - 2150 MHz
LO Frequencies: 9.75 GHz 10.6 GHz
Noise Figure: 0.7 dB typical
Polarization modes: 2 Horiz., 2 Vert. Outputs
Band Selection: 2 Hi, 2 Lo band outputs
Polarization: Linear, Simultaneous Dual Polarity C-Band (Horizontal & Vertical) or
Dual Band-Dual Polarity Ku-Band (Horizontal & Vertical High band
AND Horizontal & Vertical Low band)
Polang control: 24 volt DC motor with position feedback for Linear Mode
C/Ku Band Select: 24 volt RF Relay Switching (See Band Select Panel)