Hi, I'm trying to get the data transmitted by my weather station using rtl_433. I know there's not a built in decoder for VantagePros in rtl_433 yet, and I'm not getting anything that makes sense to me. Does anyone have the -X parameters for an "on the fly" decoder? Or can anyone shed any light on the correct parameters to capture the signal?
I have an original VantagePro, not a Pro2. I'm pretty sure I've located the signal at 916.620 mhz (close to published spec of 916.5). This old VantagePro doesn't signal hop and I get a signal every 2.5 seconds, as expected. But using -a and -A does not give me anything that I can understand. I've looked at the format of the transmission at https://github.com/dekay/DavisRFM69/wiki and don't get anything close to that. The output is pretty much Greek to me. I've looked for documentation for understanding what -a and -A print out, but I haven't found any. Any help is appreciated. Thanks, Walt Here's a typical output from rtl_433 with the -a parameter: Found Rafael Micro R820T tuner Exact sample rate is: 250000.000414 Hz [R82XX] PLL not locked! Sample rate set to 250000 S/s. Tuner gain set to Auto. Tuned to 916.620MHz. *** signal_start = 173391, signal_end = 196411, signal_len = 23020, pulses_found = 14 Iteration 1. t: 152 min: 71 (10) max: 233 (4) delta 6525 Iteration 2. t: 139 min: 62 (9) max: 217 (5) delta 337 Iteration 3. t: 139 min: 62 (9) max: 217 (5) delta 0 Pulse coding: Short pulse length 62 - Long pulse length 217 Short distance: 67, long distance: 157, packet distance: 470 p_limit: 139 bitbuffer:: Number of rows: 2 [00] { 8} 8e : 10001110 [01] { 6} 10 : 000100 *** signal_start = 798481, signal_end = 821553, signal_len = 23072, pulses_found = 16 Iteration 1. t: 174 min: 90 (13) max: 258 (3) delta 4409 Iteration 2. t: 174 min: 90 (13) max: 258 (3) delta 0 Pulse coding: Short pulse length 90 - Long pulse length 258 Short distance: 53, long distance: 105, packet distance: 158 p_limit: 174 bitbuffer:: Number of rows: 2 [00] { 2} 80 : 10 [01] {14} 50 00 : 01010000 000000 *** signal_start = 1423363, signal_end = 1446331, signal_len = 22968, pulses_found = 12 Iteration 1. t: 195 min: 80 (7) max: 311 (5) delta 3545 Iteration 2. t: 195 min: 80 (7) max: 311 (5) delta 0 Pulse coding: Short pulse length 80 - Long pulse length 311 Short distance: 53, long distance: 105, packet distance: 157 p_limit: 195 bitbuffer:: Number of rows: 2 [00] { 1} 80 : 1 [01] {11} 5a 00 : 01011010 000 *** signal_start = 2048349, signal_end = 2071421, signal_len = 23072, pulses_found = 15 Iteration 1. t: 171 min: 83 (11) max: 259 (4) delta 11905 Iteration 2. t: 171 min: 83 (11) max: 259 (4) delta 0 Pulse coding: Short pulse length 83 - Long pulse length 259 And a typical output using the -A parameter: Found Rafael Micro R820T tuner Exact sample rate is: 250000.000414 Hz [R82XX] PLL not locked! Sample rate set to 250000 S/s. Tuner gain set to Auto. Tuned to 916.620MHz. Detected OOK package 2019-06-17 11:49:20 Analyzing pulses... Total count: 12, width: 12.31 ms ( 3077 S) Pulse width distribution: [ 0] count: 3, width: 836 us [828;848] ( 209 S) [ 1] count: 6, width: 204 us [204;212] ( 51 S) [ 2] count: 1, width: 1452 us [1452;1452] ( 363 S) [ 3] count: 2, width: 620 us [616;624] ( 155 S) Gap width distribution: [ 0] count: 6, width: 208 us [208;216] ( 52 S) [ 1] count: 2, width: 420 us [420;424] ( 105 S) [ 2] count: 1, width: 1876 us [1876;1876] ( 469 S) [ 3] count: 1, width: 832 us [832;832] ( 208 S) [ 4] count: 1, width: 1044 us [1044;1044] ( 261 S) Pulse period distribution: [ 0] count: 4, width: 1096 us [1036;1252] ( 274 S) [ 1] count: 3, width: 416 us [416;420] ( 104 S) [ 2] count: 1, width: 624 us [624;624] ( 156 S) [ 3] count: 2, width: 1664 us [1664;1668] ( 416 S) [ 4] count: 1, width: 2088 us [2088;2088] ( 522 S) Level estimates [high, low]: 15960, 2 RSSI: -0.1 dB SNR: 37.3 dB Noise: -37.4 dB Frequency offsets [F1, F2]: 1062, 0 (+4.1 kHz, +0.0 kHz) Guessing modulation: No clue... Detected OOK package 2019-06-17 11:49:23 Analyzing pulses... Total count: 14, width: 12.31 ms ( 3077 S) Pulse width distribution: [ 0] count: 1, width: 1264 us [1264;1264] ( 316 S) [ 1] count: 1, width: 1876 us [1876;1876] ( 469 S) [ 2] count: 2, width: 620 us [620;624] ( 155 S) [ 3] count: 2, width: 832 us [832;836] ( 208 S) [ 4] count: 7, width: 204 us [204;212] ( 51 S) [ 5] count: 1, width: 412 us [412;412] ( 103 S) Gap width distribution: [ 0] count: 2, width: 832 us [832;836] ( 208 S) [ 1] count: 9, width: 208 us [204;216] ( 52 S) [ 2] count: 2, width: 416 us [416;420] ( 104 S) Pulse period distribution: [ 0] count: 2, width: 2092 us [2084;2100] ( 523 S) [ 1] count: 4, width: 1092 us [1040;1244] ( 273 S) [ 2] count: 1, width: 624 us [624;624] ( 156 S) [ 3] count: 5, width: 416 us [416;420] ( 104 S) [ 4] count: 1, width: 828 us [828;828] ( 207 S) Level estimates [high, low]: 15897, 2 RSSI: -0.1 dB SNR: 37.2 dB Noise: -37.4 dB Frequency offsets [F1, F2]: 1042, 0 (+4.0 kHz, +0.0 kHz) Guessing modulation: No clue... Detected OOK package 2019-06-17 11:49:25 Analyzing pulses... Total count: 12, width: 11.89 ms ( 2972 S) Pulse width distribution: [ 0] count: 4, width: 1352 us [1248;1472] ( 338 S) [ 1] count: 4, width: 204 us [204;212] ( 51 S) [ 2] count: 1, width: 620 us [620;620] ( 155 S) [ 3] count: 1, width: 832 us [832;832] ( 208 S) [ 4] count: 2, width: 412 us [412;416] ( 103 S) Gap width distribution: [ 0] count: 1, width: 628 us [628;628] ( 157 S) [ 1] count: 7, width: 212 us [208;216] ( 53 S) [ 2] count: 3, width: 416 us [416;420] ( 104 S) Pulse period distribution: [ 0] count: 1, width: 2100 us [2100;2100] ( 525 S) [ 1] count: 3, width: 416 us [416;420] ( 104 S) [ 2] count: 3, width: 1596 us [1460;1668] ( 399 S) [ 3] count: 2, width: 1040 us [1036;1044] ( 260 S) [ 4] count: 2, width: 624 us [624;624] ( 156 S) Level estimates [high, low]: 15904, 5 RSSI: -0.1 dB SNR: 34.2 dB Noise: -34.4 dB Frequency offsets [F1, F2]: 726, 0 (+2.8 kHz, +0.0 kHz) Guessing modulation: Pulse Code Modulation (Not Return to Zero) Attempting demodulation... short_width: 204, long_width: 204, reset_limit: 208896, sync_width: 0 Use a flex decoder with -X 'n=name,m=FSK_PCM,s=204,l=204,r=208896' (PS I did try that suggested -X parameter above but it did not catch anything.) -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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