magnum

Bonjour, J'ai réalise par moi même une sonde à base d'ESP32 avec pour base la librairie Drone_id. Après différents tests j'ai d'énorme problème de portée sur l'envoie des Trames Beacon. En comparant entre une sonde Naveol et la Sonde maison j'ai jusqu'à 20db d'écart (Les deux balises sont au même endroit) au niveau du signal WIFI en faveur de la Navéol En comparant les Trames Wifi Beacon dans Wireshark il y a une différence au niveau du mode Wifi entre la Naveol et la maison, la Naveol est en mode "STA" et la perso, code que l'on trouve sur le NET est en mode "AP" Avez-vous ce genre de problème ? Merci Le détail Exemple balise Naveol Frame 95: 132 bytes on wire (1056 bits), 132 bytes captured (1056 bits) on interface wlan0, id 0 Radiotap Header v0, Length 18 802.11 radio information PHY type: 802.11b (HR/DSSS) (4) Short preamble: False Data rate: 1,0 Mb/s Channel: 6 Frequency: 2437MHz Signal strength (dBm): -27 dBm [Duration: 1104µs] IEEE 802.11 Beacon frame, Flags: ........ IEEE 802.11 Wireless Management Fixed parameters (12 bytes) Timestamp: 5599 Beacon Interval: 2,999296 [Seconds] Capabilities Information: 0x0430 .... .... .... ...0 = ESS capabilities: Transmitter is a STA .... .... .... ..0. = IBSS status: Transmitter belongs to a BSS .... ..0. .... 00.. = CFP participation capabilities: Station is not CF-Pollable (0x00) .... .... ...1 .... = Privacy: AP/STA can support WEP .... .... ..1. .... = Short Preamble: Allowed .... .... .0.. .... = PBCC: Not Allowed .... .... 0... .... = Channel Agility: Not in use .... ...0 .... .... = Spectrum Management: Not Implemented .... .1.. .... .... = Short Slot Time: In use .... 0... .... .... = Automatic Power Save Delivery: Not Implemented ...0 .... .... .... = Radio Measurement: Not Implemented ..0. .... .... .... = DSSS-OFDM: Not Allowed .0.. .... .... .... = Delayed Block Ack: Not Implemented 0... .... .... .... = Immediate Block Ack: Not Implemented Exemple balise Maison Frame 96: 149 bytes on wire (1192 bits), 149 bytes captured (1192 bits) on interface wlan0, id 0 Radiotap Header v0, Length 18 802.11 radio information PHY type: 802.11b (HR/DSSS) (4) Short preamble: False Data rate: 1,0 Mb/s Channel: 6 Frequency: 2437MHz Signal strength (dBm): -43 dBm [Duration: 1240µs] IEEE 802.11 Beacon frame, Flags: ........ IEEE 802.11 Wireless Management Fixed parameters (12 bytes) Timestamp: 0 Beacon Interval: 3,072000 [Seconds] Capabilities Information: 0x0421 .... .... .... ...1 = ESS capabilities: Transmitter is an AP .... .... .... ..0. = IBSS status: Transmitter belongs to a BSS .... ..0. .... 00.. = CFP participation capabilities: No point coordinator at AP (0x00) .... .... ...0 .... = Privacy: AP/STA cannot support WEP .... .... ..1. .... = Short Preamble: Allowed .... .... .0.. .... = PBCC: Not Allowed .... .... 0... .... = Channel Agility: Not in use .... ...0 .... .... = Spectrum Management: Not Implemented .... .1.. .... .... = Short Slot Time: In use .... 0... .... .... = Automatic Power Save Delivery: Not Implemented ...0 .... .... .... = Radio Measurement: Not Implemented ..0. .... .... .... = DSSS-OFDM: Not Allowed .0.. .... .... .... = Delayed Block Ack: Not Implemented 0... .... .... .... = Immediate Block Ack: Not Implemented Tagged parameters (95 bytes)