• Created by Unknown User (livermor) on 20.03.2018

TimeItemWhoNotes
    
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  • Carrier acquisition threshold:
  • Selectivity can be provided later
  • Focused on microsatellite and small satellite
    • Measurements done on these radios
  • Data rate 8-256kbps
    • What are the requirements to get high data rate
    • The higher data rate is not compliant with ECSS
    • So it wasn't designed for that
    • Designed for TT&C
    • HW is more powerful than the specification
  • Options
    • Can be added and have higher cost
  • EWC31 only one mission
    • Further in planning
  • EWC27 since 2015
  • Rideshare - several launches have been postponed
  • CNES+ESA project was to miniaturize
    • Fit and be compliant to CubeSat products
  • Products and components come from the small satellites - fully ECSS-compliant
  • Cost is driven by the reliability and rad-hard components
    • Similar as the microsatellites
    • Fully tested and verified according to ECSS
    • Qualified
  • s-band transponder photos
    • Two different configurations
      • Different duplexer according to the antenna configuration
      • Configuration on the bottom has been discontinued (EYE-SAT?)
    • Interfaces
      • One black-capped connector
      • Always three connectors
      • Internal coupler
      • Receiver antenna
      • Transmitter antenna
    • He will send us the ICD - Interface Control Document
    • Don’t use SDR
      • But flexible in terms of configuration of interfaces
      • Power consumption - CCSDS
      • The receiver is always on (as opposed to GOMSPACE)
        • If you don’t have a duplexer you will not be able to be compliant to CCSDS - you will have to turn the receiver off
      • They will also propose SDR this year - but not for TT&C
  • X-band/S-band
    • No duplexer
    • No interference
    • They're quite proud of this product
  • He will send us the data packages
    • ICD
    • Step-file
    • Datasheet
    • Configuration template
      • 1-2 months timeframe to fix the configuration
    • They can change the configuration after delivery - but then they have to do recalibration/validation again
  • Data rate is in-flight configurable - EWC27
    • EWC28 is the big brother of this product
    • Nominal version 3-50 Mbps
    • We can provide up to 3 bitrates that they store in the product, and then we can select which one we want to use via the TT&C
    • OPTC27-VDR: more than 3 bitrates, fully configurable data rates in orbit (but much more expensive)
  • Cost is also driven by acceptance testing
  • If we wait a bit, we might have a shorter delivery time
    • Because there is less slack than before (because of maturity of product)
    • The extra options are usually between 6000-10000euro
    • They will make a sales effort once we decide the options
  • Quantity?
    • One unit is more expensive than multiple units
    • 1-4, 8, 12
    • Will get discount if we are a customer
  • Teaching purposes
    • We can visit them
    • Or we can use the engineering model
  • Payment terms
    • Can adjust them to be more compliant to university procurement schedules
    • Might be added cost
    • Warranty with bank/both ways
    • 5% payment after delivery is also an option