27 hakuosumaa

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  ADALM-PLUTO - 2

  Oracle VM VirtualBox Ubuntu 18.04 GNU Radio 3.7 gr-iio https://wiki.analog.com/resources/tools-software/linux-software/gnuradio PlutoSDR Sink IIO context URI / PlutoSDR Source Device URI ip:pluto.lo...

  20.08.2021 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  ADALM-PLUTO - 1

  ADALM-PLUTO Python 3.9.6 64-bit for Windows I installed Windows drivers for ADALM-PLUTOhttps://wiki.analog.com/university/tools/pluto/drivers/windows and pyadi-iio https://wiki.analog.com/resources/...

  11.08.2021 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Some PDUs

  SSI:xxxxxxx Call ID:nnnnn D_Alert Mode_of_Operation:Simplex Notification_Indicator:Forwarding_diversion_activated Basic_service:Individual Clear Speech_TCH_S T301_T302:x s MS request for registration/...

  23.03.2020 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Clear PDUs - 3

  SSI:nnnnnnn Call ID:nnnn Encrypt:Clear D_TX_Interrupt Transmission Request_queued Party_SSI:nnnnnnn Notification_Indicator:LE_acknowledgement SSI:nnnnnnn Call ID:nnnnn D_Alert Mode_of_Operation:Duple...

  04.10.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Clear PDUs - 2

  SSI:nnnnnnn Call ID:nnnn Disconnect_cause:Requested_service_not_available D_Release SSI:nnnnnnn Call ID:nnn D_Setup Transmission Granted_to_another_user Mode_of_Operation:Simplex Hook_method:Hook on/H...

  06.08.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Enhanced Python RTL-SDR simple spectrum analyzer

  GNU Radio WX GUI FFT sink peak hold checkbox checked style version:https://teknokoodiradio.vuodatus.net/lue/2018/02/very-simple-python-rtl-sdr-spectrum-analyzer No peak hold version: import matplotl...

  15.07.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Clear PDUs

  Sometimes clear MS registration/call PDUs exist in encrypted TETRA network: BS demands authentication: SSI: xxxxxxx OTAR: OTAR_NEWCELL SSI: xxxxxxx MS request for registration/authentication ACCEPTED ...

  30.06.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  RTL-SDR blog wideband LNA

  https://www.rtl-sdr.com/product/rtl-sdr-blog-wideband-lna-bias-tee-powered/ At first try the LNA did not work at all, so I opened the metal case and noticed that bias tee jumper was in correct posi...

  19.04.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  SDRSharp Multimon-ng launch plugin

  I coded a simple plugin for the SDR# to execute Multimon-ng and set some of the Multimon-ng parameters. Visual Studio 2017. C# Source code and plugin dll file https://github.com/OH1GIU-P/SDRSharpMulti...

  01.02.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  SDR# TETRA plug-in MS regs decoding

  TETRA trunk tracker & plug-in v1.0.9 (hotfix #6) can show MS registrations. MS Registrations tab can show e.g. following message types BS disabled MS: Comfirm:  Temporary  Equipment not to be dis...

  20.01.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Interesting data signal at 450 MHz

  PSK? ...

  13.01.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  DMR decoding experiments

  Setup: RTL-SDR.com V3, SDR#, DSDplus & virtual audio cable Lots of errors in DSD+ event log, ECC FAIL, CACH ERR ... even though DMR signal is quite strong and SDR# is tuned to center frequency, NF...

  03.01.2019 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Interesting signal in frequency band allocated to pagers

  I found quite interesting signal at 462 MHz which is allocated to pagers (Finland). Bandwidth approximately 12 kHz Audacity view (FM modulation)https://ibb.co/Jvr58Fd Multimon-ng:...

  19.12.2018 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Silvercrest wireless doorbell

  Silvercrest STK 36 B2 version 12/2017 (433 MHz OOK)  https://postimg.cc/TpC7xhm3 I recorded IQ file with SDR# (433.946 MHz 0.25 MS/s) and with GNU Radio demodulated OOK and saved demodulated signal t...

  24.11.2018 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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  Mobitex-1200 462.325 MHz ?

  In Finland frequency range between 462.2 - 462.5 MHz is reserved for paging. I found (location: Pori, Finland) a transmission at 462.325 MHz which looks and sounds like Mobitex-1200 (MSK, 1200 bps). ...

  20.10.2018 | Kommentteja 0 | Teknisiä laitteita ja ohjelmointia

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