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29 hakuosumaa
Remote controls in 868 MHz ISM band with static keycodes
ADALM-PLUTO GNU Radio PulseView RTL_433 Old tech remote door openers which use PWM and static key codes can still be found from 868 MHz ISM band. Signal replay settings in SmartRF Studio. Fo...
13.11.2021 | Kommentteja 0 |
Programming, Electronics, RF
Signal RX-TX with ADALM-PLUTO and GNU Radio
Oracle VM VirtualBox Ubuntu 18.04 GNU Radio 3.7 ADALM-PLUTOhttps://wiki.analog.com/resources/tools-software/linux-software/gnuradio RX and save signal (433 MHz wireless doorbell)https://i.ibb.co/p3bT...
04.11.2021 | Kommentteja 0 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 3 |
Programming, Electronics, RF
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 |
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Interesting data signal at 450 MHz
PSK? ...
13.01.2019 | Kommentteja 0 |
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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 |
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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 |
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