ASU Ground Station System Overview

0139-EX-CN-2018 Text Documents

Arizona State University

2018-02-12ELS_204766

Antenna System – Dish/Structure L/S Band L/S Band Dish Dish Feed Feed Assembly: Assembly: •• Manufacturer: Manufacturer: Seavey Seavey Engineering Engineering Inc. Inc. • Freq. range: 1500 - 2500 MHz • Freq. range: 1500 - 2500 MHz Efficiency factor: ~65 - 70% Total effective efficiency: ~65% Air Conditioned Conditioned RF RF Box: Box: Parabolic reflector: Parabolic reflector: Air •• Manufacturer: Pacific Manufacturer: Pacific Radomes, Radomes, Inc. Inc. ••24” 24” xx 24” 24” xx 12” 12” •• Diameter: 3.048 meters (10ft) Diameter: 3.048 meters (10ft) ••2000 2000 BTU BTU ACAC •• Focal Length: Length: 1.143 1.143 meters meters (f/D (f/D = = .375) .375) Focal •• Dish Surface Error RMS: < Dish Surface Error RMS: < .015.015 Efficiency factor ~98% Required Ballast: Required Ballast: ••Tethered Tethered = = 2469 2469 lbs lbs • Untethered = •Untethered = 3124 3124 lbs lbs Power Distribution Power Distribution Box: Box: ••18” 18” xx 16” 16” xx 8” 8” ••Vented/ Vented/ Cooling Cooling Fans Fans

Air Conditioned RF Box UHF Safety S-Band Safety Load Load L/S-Band LNA: ZRL- UHF LNA: ZRL-700+ 2400LN+ Gain: 30-31 dB Gain: 28-32 dB Freq. range: 250 – 700 Freq. range: 1000 – 2400 MHz MHz L/S-Band: ZHL-30W-252+ UHF HPA: ZHL-50W-52+ Gain: 50 dB Gain: 50 dB Freq. range: 700 – 2500 MHz Freq. range: 50 – 500 MHz Amplifier protection and fault indication circuit designed by Chris Marrs

Major RF Components Yagi antennas   Yagi 1: 430 – 438 MHz  Yagi 2: ??? MHz X310 N210 Amplifiers  UHF:   HPA: 50-500 MHz  LNA: 250-700 MHz Max ADC Sample Rate 200 MS/s 100 MS/s L/S-Band:  ADC Resolution 14 bits 14 bits  HPA: 1000-2400 MHz Max DAC Sample Rate 800 MS/s 400 MS/s  LNA: 700-2500 MHz Dish feed DAC Resolution 16 bits 16 bits  Typical Noise Figure 8 dB 5 dB Current: 2200 - 2450 MHz Frequency Accuracy (w/ 0.02 ppm 0.01 ppm Future: Bands covering all ASU and GPSDO) Power Output > 10dBm 15 dBm DSN frequencies USRP Daughter Boards  WBX-120: 50 – 2200 MHz (120 MHz  Bandwidth) CBX-120: 1200  – 6000 MHz (120

USRP Daughter-boards Frequency Range Bandwidth WBX-120 50 – 2200 MHz 120 MHz (only for x310 SDR) CBX-120 1200-6000 MHz 120 MHz (only for x310 SDR) WBX-40 50-2200 MHz 40 MHz CBX-40 1200-6000 MHz 40 MHz

Generalized Antenna Beams L/S- C/X- ~3º Band ~.96º Band Yagi 1 Yagi 2 ~20º ~30º


Document Created: 2019-04-26 05:45:39
Document Modified: 2019-04-26 05:45:39
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