{"id":569,"date":"2026-06-11T13:05:39","date_gmt":"2026-06-11T05:05:39","guid":{"rendered":"https:\/\/projectleon.net\/make\/blog\/lora-signal-decode-gnu-radio-rtl-sdr-packet-analysis-farsi\/"},"modified":"2026-06-11T13:05:39","modified_gmt":"2026-06-11T05:05:39","slug":"lora-signal-decode-gnu-radio-rtl-sdr-packet-analysis-farsi","status":"publish","type":"post","link":"https:\/\/projectleon.net\/make\/blog\/lora-signal-decode-gnu-radio-rtl-sdr-packet-analysis-farsi\/","title":{"rendered":"\u062f\u0631\u06cc\u0627\u0641\u062a \u0648 \u0631\u0645\u0632\u06af\u0634\u0627\u06cc\u06cc \u0633\u06cc\u06af\u0646\u0627\u0644 LoRa \u0628\u0627 GNU Radio \u0648 RTL-SDR: \u0622\u0646\u0627\u0644\u06cc\u0632 \u067e\u06a9\u062a \u0648\u0627\u0642\u0639\u06cc (\u0641\u0627\u0631\u0633\u06cc)"},"content":{"rendered":"
\nGNU Radio LoRa RTL-SDR \u0631\u0645\u0632\u06af\u0634\u0627\u06cc\u06cc \u0633\u06cc\u06af\u0646\u0627\u0644\n<\/div>\n
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GNU Radio \u0648 \u0631\u0645\u0632\u06af\u0634\u0627\u06cc\u06cc LoRa \u0686\u06cc\u0633\u062a\u061f (\u0645\u0628\u062a\u062f\u06cc)<\/h2>\n

GNU Radio<\/strong> \u06cc\u06a9 \u0645\u062d\u06cc\u0637 \u067e\u0631\u062f\u0627\u0632\u0634 \u0633\u06cc\u06af\u0646\u0627\u0644 \u0645\u062a\u0646\u200c\u0628\u0627\u0632 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627 \u0628\u0644\u0648\u06a9\u200c\u0647\u0627\u06cc \u06af\u0631\u0627\u0641\u06cc\u06a9\u06cc (\u0645\u0634\u0627\u0628\u0647 Blockly) \u06a9\u0627\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0628\u0647 \u062c\u0627\u06cc \u06a9\u062f\u0646\u0648\u06cc\u0633\u06cc\u060c \u0628\u0644\u0648\u06a9\u200c\u0647\u0627\u06cc\u06cc \u0645\u062b\u0644 “RTL-SDR Source”\u060c “FFT”\u060c “LoRa Decoder” \u0631\u0627 \u0628\u0627 \u062e\u0637\u0648\u0637 \u0628\u0647 \u0647\u0645 \u0648\u0635\u0644 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f \u0648 \u06cc\u06a9 \u06af\u06cc\u0631\u0646\u062f\u0647 \u06a9\u0627\u0645\u0644 LoRa \u0645\u06cc\u200c\u0633\u0627\u0632\u06cc\u062f.<\/p>\n

LoRa \u0627\u0632 \u0645\u062f\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 CSS<\/strong> (Chirp Spread Spectrum) \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f \u2014 \u0641\u0631\u06a9\u0627\u0646\u0633 \u0633\u06cc\u06af\u0646\u0627\u0644 \u0628\u0647 \u0622\u0631\u0627\u0645\u06cc \u0627\u0632 \u067e\u0627\u06cc\u06cc\u0646 \u0628\u0647 \u0628\u0627\u0644\u0627 (\u06cc\u0627 \u0628\u0627\u0644\u0627 \u0628\u0647 \u067e\u0627\u06cc\u06cc\u0646) \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u06cc\u0646 Chirp<\/strong>\u0647\u0627 \u062f\u0631 Waterfall \u0634\u06a9\u0644 \u0627\u0631\u06cc\u0628 \u062f\u0627\u0631\u0646\u062f \u0648 \u0628\u0627 \u067e\u0644\u0627\u06af\u06cc\u0646 gr-lora<\/strong> \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 payload \u0648\u0627\u0642\u0639\u06cc \u0631\u0627 \u0627\u0633\u062a\u062e\u0631\u0627\u062c \u06a9\u0631\u062f.<\/p>\n<\/div>\n

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\u0647\u062f\u0641 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627<\/h2>\n

\u0634\u0646\u0648\u062f \u0648 \u0631\u0645\u0632\u06af\u0634\u0627\u06cc\u06cc \u067e\u06a9\u062a\u200c\u0647\u0627\u06cc LoRa \u0648\u0627\u0642\u0639\u06cc \u0627\u0631\u0633\u0627\u0644\u200c\u0634\u062f\u0647 \u0627\u0632 \u06cc\u06a9 Arduino+SX1278 \u0628\u0627 GNU Radio \u0648 RTL-SDR.<\/p>\n

    \n
  • \u0647\u0632\u06cc\u0646\u0647:<\/strong> RTL-SDR \u06f1\u06f5-\u06f3\u06f0 \u062f\u0644\u0627\u0631 + \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u0631\u0627\u06cc\u06af\u0627\u0646<\/li>\n
  • \u0633\u06cc\u0633\u062a\u0645\u200c\u0639\u0627\u0645\u0644:<\/strong> Linux (Ubuntu) \u067e\u06cc\u0634\u0646\u0647\u0627\u062f\u06cc<\/li>\n
  • \u067e\u06cc\u0634\u200c\u0646\u06cc\u0627\u0632:<\/strong> \u06cc\u06a9 \u0645\u0627\u0698\u0648\u0644 LoRa \u0627\u0631\u0633\u0627\u0644\u200c\u06a9\u0646\u0646\u062f\u0647<\/li>\n<\/ul>\n<\/div>\n

    \n\nLoRa Chirp \u062f\u0631 Waterfall \u2014 SF=7, BW=125kHz<\/text>\n\n\n\n\n\nUpchirp \u067e\u0631\u06cc\u0627\u0645\u0628\u0644<\/text>\nDownchirp (SFD)<\/text>\n<\/svg><\/p>\n

    \u0646\u0635\u0628 GNU Radio \u0648 gr-lora \u062f\u0631 Ubuntu<\/h2>\n
    \n# \u0646\u0635\u0628 GNU Radio:\nsudo apt install -y gnuradio gnuradio-dev\n\n# \u0646\u0635\u0628 \u067e\u0644\u0627\u06af\u06cc\u0646 RTL-SDR:\nsudo apt install -y gr-osmosdr\n\n# \u0646\u0635\u0628 gr-lora (\u0631\u0645\u0632\u06af\u0634\u0627\u06cc LoRa):\nsudo apt install -y cmake libboost-all-dev libspdlog-dev\ngit clone https:\/\/github.com\/rpp0\/gr-lora.git\ncd gr-lora && mkdir build && cd build\ncmake .. && make -j4\nsudo make install && sudo ldconfig\n\n# \u062a\u0623\u06cc\u06cc\u062f \u0646\u0635\u0628:\npython3 -c \"import lora; print('gr-lora OK')\"\n<\/code><\/pre>\n
    \u0633\u0627\u062e\u062a Flowgraph \u062f\u0631 GNU Radio Companion<\/h2>\n
    \n\/\/ \u0628\u0644\u0648\u06a9\u200c\u0647\u0627\u06cc \u0644\u0627\u0632\u0645 \u062f\u0631 GNU Radio Companion:\n\n\/\/ \u06f1. RTL-SDR Source\n\/\/    Device: rtl=0\n\/\/    Sample Rate: 1M\n\/\/    Center Freq: 433.175M  (\u0641\u0631\u06a9\u0627\u0646\u0633 LoRa \u0634\u0645\u0627)\n\n\/\/ \u06f2. Low Pass Filter\n\/\/    Cutoff: 125000 Hz (BW=125kHz)\n\/\/    Transition: 10000 Hz\n\n\/\/ \u06f3. lora_receiver (\u0627\u0632 gr-lora)\n\/\/    SF: 7 (Spreading Factor)\n\/\/    BW: 125000\n\/\/    CR: 4\/8 (Code Rate)\n\/\/    Implicit: False\n\n\/\/ \u06f4. Message Debug\n\/\/    \u0646\u0645\u0627\u06cc\u0634 payload \u062f\u0631 Console\n\n\/\/ \u0627\u062a\u0635\u0627\u0644: RTL-SDR \u2192 LPF \u2192 lora_receiver \u2192 Message Debug\n\n\/\/ payload \u062f\u0631 console:\n\/\/ pkt_len=13 payload=[0x48 0x65 0x6C 0x6C 0x6F] = \"Hello\"\n<\/code><\/pre>\n
    \u0628\u0631\u0646\u0627\u0645\u0647 TX LoRa \u0628\u0631\u0627\u06cc \u062a\u0633\u062a (Arduino)<\/h2>\n
    \n#include <LoRa.h>\n\nvoid setup() {\n  LoRa.begin(433.175E6);\n  LoRa.setSpreadingFactor(7);   \/\/ SF7\n  LoRa.setSignalBandwidth(125E3); \/\/ BW 125kHz\n  LoRa.setCodingRate4(8);       \/\/ CR 4\/8\n  LoRa.setTxPower(14);\n}\n\nvoid loop() {\n  LoRa.beginPacket();\n  LoRa.print(\"Hello from UGV\");\n  LoRa.endPacket();\n  delay(5000);\n}\n<\/code><\/pre>\n
    \u0686\u06a9\u200c\u0644\u06cc\u0633\u062a \u0631\u0645\u0632\u06af\u0634\u0627\u06cc\u06cc<\/h2>\n\n\n\n\n\n\n\n\n
    \u0628\u0631\u0631\u0633\u06cc<\/th>\n\u0646\u062a\u06cc\u062c\u0647<\/th>\n<\/tr>\n<\/thead>\n
    Chirp \u062f\u0631 Waterfall \u062f\u06cc\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u061f<\/td>\n\u062e\u0637\u0648\u0637 \u0627\u0631\u06cc\u0628 \u0632\u0631\u062f<\/td>\n<\/tr>\n
    SF \u0648 BW \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0627\u0631\u062f\u061f<\/td>\n\u0647\u0645\u0627\u0646 \u062a\u0646\u0638\u06cc\u0645 TX<\/td>\n<\/tr>\n
    payload \u062f\u0631 console \u0638\u0627\u0647\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f\u061f<\/td>\nMessage Debug<\/td>\n<\/tr>\n
    CRC Error \u0646\u062f\u0627\u0631\u062f\u061f<\/td>\nRSSI \u0628\u0627\u0644\u0627\u06cc -\u06f1\u06f2\u06f0dBm \u0628\u0627\u0634\u062f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n\n\n\n\n\n\n\nArduino TX<\/text>\nSF7 BW125<\/text>\nRTL-SDR<\/text>\n\u062f\u0631\u06cc\u0627\u0641\u062a 433MHz<\/text>\ngr-lora<\/text>\n\u0631\u0645\u0632\u06af\u0634\u0627\u06cc\u06cc<\/text>\npayload \u0646\u0645\u0627\u06cc\u0634<\/text>\nGNU Radio Console<\/text>\nGNU Radio + gr-lora \u2014 \u0634\u0646\u0648\u062f \u0648 \u0631\u0645\u0632\u06af\u0634\u0627\u06cc\u06cc LoRa \u0648\u0627\u0642\u0639\u06cc<\/text>\n<\/svg><\/p>\n
    \u0648\u06cc\u062f\u0626\u0648\u0647\u0627\u06cc \u0622\u0645\u0648\u0632\u0634\u06cc<\/h2>\n
    \n