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ArWest FH915 Features Manual

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FH915
Features Guide
Version 1.0
Last revised November 12, 2013
All contents in this manual are copyrighted by ArWest Communications.
All rights reserved.The information contained herein may not be used, accessed, copied,
stored, displayed, sold, modified, published, or distributed, or otherwise reproduced without
express written consent from ArWest Communications.

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  • Page 1 Version 1.0 Last revised November 12, 2013 All contents in this manual are copyrighted by ArWest Communications. All rights reserved.The information contained herein may not be used, accessed, copied, stored, displayed, sold, modified, published, or distributed, or otherwise reproduced without...

  • Page 2: Table Of Contents

    7. Regional features of the modem FH915 ........

  • Page 3: Command Mode

    The following steps summarize the procedure of FH915 installing: • The easiest way to access the FH915 OEM board is to use the Evaluation Kit (p / n 99-571010- 01). The FH915 connected directly to Evaluation Kit (p/n 99-571010-01) by its 16-Lead Header Connector, ECS Corp.

  • Page 4: Info

    Product ID =41 – the FH915 board product identification number; S/N =BT001 - the serial number assigned to the FH915 board at the factory; Hardware =2 - the revision number of the modem board; Firmware =3.1.14 - Version of FW FH915 board;...

  • Page 5: Link

    Tx =915000000 - the preset value of the transmitter frequency in Hz. Rx =915000000 - the preset value of the receiver frequency in Hz. T=43.50 – Temperature on the FH915 board near the power amplifier. 3.3. link The Modem settings can be accessed using the link\n.
  • Page 6 FH915 Features Guide The default settings link The set output transmitter power use the command link pwrb D\n, D =7,8, … ,30 – output power in dBm. FHOP = 0 0 - selected transmitter and receiver frequency hopping sequences. The first parameter specifies the frequency sequence selected for the transmitter, the second - for the receiver.

  • Page 7: Additional Settings

    FH915 Features Guide Additional settings link DCRC = 1 - manage the output of the received data to the port. The command to read parameter is dcrc\n. Command to set – dcrc D\n. D = 0 - received data are distributed to the port, regardless of the received data CRC.
  • Page 8 FH915 Features Guide Additional settings link SCRAM =1 FEC =1 DCRC =0 DLNG =0 DSRV =0 LBT =1 The first parameter in the string PMP =3, 44 123 091 123 represent РМР value. The command to read parameter PMP is link pmp\n.

  • Page 9: Using The Modem As A Repeater

    FH915 Features Guide Using the modem as a repeater link If these data are the command (43) then the command is executed. It should be noted that the command is executed only if the CRC =OK, whatever you selected DCRC =1 in the configuration file or not.

  • Page 10: Modem Protection From Interference. Exclusion Of Unwanted Frequencies

    To remove some frequency from the list of unwanted frequencies use the command, for example, ndel 1F\n. This command removes from the list 1F frequency 908400000 Hz. 7. Regional features of the modem FH915 Region code can be read by command rgn\n.

  • Page 11: Region 0

    FH915 Features Guide Regional features of the modem FH915 Region 0 D = 0 - Region EUR. D = 1 - Region USA. D = 2 - Region AUS. D = 3 - Region SPC (Special). To save the Region code in the configuration file, issue the command save\n.

  • Page 12: Modem And Channel Diagnostics

    FH915 Features Guide Modem and Channel Diagnostics Region 3 7.4. Region 3 The range of frequencies used: 902.0 … 928.0 MHz. Operating frequencies are placed in increments of 25.0, 12.5, 6.25 kHz. 8. Modem and Channel Diagnostics 8.1. Estimation of the reception quality “On the Fly”...

  • Page 13: The Distribution Of Noise And Interference On Frequencies

    FH915 Features Guide Modem and Channel Diagnostics The distribution of noise and interference on frequencies 913000000 -58.9 909000000 -58.4 906200000 -58.4 ..919000000 -60.0 905600000 -58.7 910600000 -58.7 917400000 -60.0 925400000 -60.8 925800000 -140.7 This array shows the distribution of the received signal power in range.

  • Page 14: Scanner

    FH915 Features Guide Modem and Channel Diagnostics Scanner 908400000 -76.3 926400000 -101.7 926600000 -100.2 926800000 -99.7 927400000 -100.4 927600000 -99.3 This array shows the distribution of the power of noise and interference for the frequencies used in the modem. -112.2 - Shows the average noise power (dBm).

  • Page 15: Ber Measurement

    FH915 Features Guide Modem and Channel Diagnostics BER measurement 8.5. BER measurement To measure the received signal power and survey the status of the receiver you can use the command berr 180\n. When applying this command receiver outputs to port instead data the coded string, characterizing the receiver state: 0 F501 0028 1 65 0 -57.3...

  • Page 16: Modem Features Programming In The Region 0

    FH915 Features Guide Modem and Channel Diagnostics Modem features programming in the region 0 00 - ATT off, LNA off 10 - ATT is on, LNA off The fifth field (65 hex) – current number of frequency in the transmitted signal.

  • Page 17: Test Signals Forming

    FH915 Features Guide Test signals forming Modem features programming in the region 0 Note that the response to the command link\n in the Region 0 is different from the corresponding answer in the Region 1. In the region 0 the permissible maximum power depends on the transmitter frequency. For the frequency 869000000 Hz power shall not exceed 14 dBm.
  • Page 18 900 Rock Avenue, San Jose, CA 95131 USA Tel: + 1(408) 770-1790 Fax: + 1(408) 770-1799 www.arwestcom.com Copyright © ArWest Communications, 2013 All rights reserved. No unauthorized duplication.

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