Datasheet for astrocast models including: 01001, 2A269-01001, 2A26901001, 0628-DOC-PM-ASTRO Product Homologation with Embedded Astronode S, Product Homologation with Embedded Astronode S, Embedded Astronode S
Astrocast SA 01001 The Astronode S is a low power satellite communication module designed to connect devices to the Astrocast Satellite IoT network. The module handles bi-directional communication on L-band with the Astrocast satellite constellation 2A269-01001 2A26901001 01001
File Info : application/pdf, 7 Pages, 490.85KB
DocumentDocumentTechnical Documentation 0628-DOC-PM-ASTRO Product homologation with embedded Astronode S White Paper For feedback or questions: support@astrocast.com Astrocast SA · All rights reserved · Doc: 0628-DOC-PM-ASTRO · Issue: 0 Rev: 1 · Modifications without prior notice Document history Issue/rev. 0/1 Date Modifications 22.12.2021 Initial preliminary version Reference documents Document name Astronode S - Datasheet Astronode Patch Antenna Datasheet & Integration guide Astronode Serial Commands Document number 0532 0534 0656 In this document This is an information This is a warning Acronyms Acronym FCC RF UART Description Federal communications commission Radio Frequency Universal asynchronous receiver transmitter Astrocast SA · All rights reserved · Doc: 0628-DOC-PM-ASTRO · Issue: 0 Rev: 1 · Modifications without prior notice Table of Content 1 Introduction 4 2 Setup 4 3 Recommendations 5 3.1 Implementation example 5 4 Product information: 6 5 Test mode commands 7 Astrocast SA · All rights reserved · Doc: 0628-DOC-PM-ASTRO · Issue: 0 Rev: 1 · Modifications without prior notice 1 Introduction This document is a guide through the process of radio testing and product homologation for applications integrating Astrocast's Astronode S or Astronode S+. For this purpose, a variant of the corresponding product with a special firmware enabling test modes will be needed. Please contact Astrocast to obtain the device you need for your application: Item Number AST50165-00 AST50166-00 Item Description TST Astronode S TST Astronode S+ These products feature serial commands not available on the standard variants, enabling antenna testing for CE and FCC certification. Serial test commands are authorized for exclusive use on TST products installed in anechoic chambers, shielded boxes or in a conducted measurement setup 2 Setup All test modes can be controlled through the serial interface of the Astronode S, see 0656 Astronode Serial Command Reference for details. Figure 1 shows the typical setup for radiated and conducted radio testing: Figure 1 - Test setup Astrocast SA · All rights reserved · Doc: 0628-DOC-PM-ASTRO · Issue: 0 Rev: 1 · Modifications without prior notice 3 Recommendations It is highly recommended to foresee the mounting of an optional RF connector at the place of the antenna. Additional RF lines should be avoided, especially stubs (branch off the main RF line to the connector) which could impact the RF performance with the antenna mounted. The RF connector footprint will allow for conducted testing to be done without modifying the hardware of the final product. Figure 2 - Footprints 3.1 Implementation example On the Astronode S+ with the standard mounted patch antenna (Figure 3), Astrocast placed an optional surface mounted MMCX connector footprint, see Figure 4. Astronode S+ as standard product, with mounted antenna patch, ready for radiated radio testing: Figure 3 - Antenna mounted Astrocast SA · All rights reserved · Doc: 0628-DOC-PM-ASTRO · Issue: 0 Rev: 1 · Modifications without prior notice Astronode S+ without antenna, and with the optional MMCX connector mounted for conducted radio testing. Note the connector placement next to the antenna pin to avoid additional RF lines on the PCB: Figure 4 - Connector mounted As laboratory instruments are based on SMA connectors, providing a MMCX to SMA cable is recommended for the homologation process 4 Product information: Some information might be needed for product certification in addition to the data provided in the respective datasheets. The following list is provided to customers. If more information is needed, please contact Astrocast (support@astrocast.com). Parameter Highest frequency TX L-band range RX L-band range Modulation Operating channel width Channel spacing Transmission time max. Maximum duty cycle Specification 1659.5 MHz 1627.5 MHz to 1659.5 MHz 1525 MHz to 1559 MHz QPSK Any 150 KHz within the L-band 150 KHz 1.4s 54% Astrocast SA · All rights reserved · Doc: 0628-DOC-PM-ASTRO · Issue: 0 Rev: 1 · Modifications without prior notice 5 Test mode commands Please refer to the document 0656 Astronode Serial Command Reference for more details on test commands for homologation. The TST products listed in Chapter 1 feature the special test command HTX_SR which allows to start a continuous TX transmission with PRBS9 data format or unmodulated at the desired frequency. This test mode is needed for spurious and EMC homologation tests. Astrocast SA · All rights reserved · Doc: 0628-DOC-PM-ASTRO · Issue: 0 Rev: 1 · Modifications without prior noticeMicrosoft Word for Microsoft 365