Mobilefish.com Author: Robert Lie 1/2 λ and sleeve dipole antenna test results for LoRa/LoRaWAN tutorial 41 The 1/2 λ dipole antenna is connected to the end device without use of coax cable. See: https://www.mobilefish.com/developer/lorawan/lorawan_quickguide_tutorial.html Gateway ID Latitude Longitude Altitude [m] Model Antenna Model Placement Google Map eui-aa555a0000088013 52.438285 4.817652 42 Raspberry Pi with IMST iC880A Collinear Omni 868 MHz outdoor https://www.google.com/maps/place/52°26'17.8"N+4°49'03.6"E eui-000080029c10db9b 52.41430355 4.82983181 30 The Things Outdoor Gateway 6db outdoor https://www.google.com/maps/place/52°24'51.5"N+4°49'47.4"E eui-0ba0000000000001 52.40702399 4.8211033 20 Lorank 8 GP 901 C Ideetron outdoor https://www.google.com/maps/place/52°24'25.3"N+4°49'16.0"E eui-60c5a8fffe760e60 52.4151369 4.8229268 30 7249 RAK fiber RAKwireless outdoor https://www.google.com/maps/place/52°24'54.5"N+4°49'22.5"E eui-dca632fffe43df3e 52.45091429 4.8044085 10 Raspberry Pi IMST - indoor https://www.google.com/maps/place/52°27'03.3"N+4°48'15.9"E eui-b827ebfffedcc77d 52.44528961 4.8052606 7 Raspberry Pi RAK2245 - indoor https://www.google.com/maps/place/52°26'43.0"N+4°48'18.9"E To find information about a gateway, using the gateway ID: https://ttnmapper.org/colour-radar/?type=radar&hideothers=on&gateway=eui-0ba0000000000001 https://www.thethingsnetwork.org/gateway-data/ To find information about a gateway, using the latitude and longitude: https://www.thethingsnetwork.org/gateway-data/location?latitude=52.46079&longitude=4.800586&distance=200 End node located at the 2nd floor (altitude ~11m): https://www.google.nl/maps/place/52°27'06.2"N+4°48'39.7"E The end node tx power is not reduced! The end node is placed in front of a window at location A, facing East and South. ======================================================= 1/2 λ dipole ======================================================= { "time": "2019-10-30T09:18:13.427785436Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 1556316339, "time": "", "channel": 0, "rssi": -119, "snr": -6.2, "rf_chain": 1, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-60c5a8fffe760e60", "timestamp": 2285883208, "time": "2019-10-30T09:18:13.395567Z", "channel": 4, "rssi": -113, "snr": -5, "rf_chain": 3, "latitude": 52.41492, "longitude": 4.82247, "altitude": 92 }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 598699587, "time": "2019-10-30T09:18:13.413313Z", "channel": 0, "rssi": -108, "snr": 2.8, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:18:50.245580781Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 635510995, "time": "2019-10-30T09:18:50.231149Z", "channel": 1, "rssi": -105, "snr": 4.5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:19:25.814213385Z", "frequency": 867.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 1628702203, "time": "", "channel": 4, "rssi": -119, "snr": -4.8, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 671085499, "time": "2019-10-30T09:19:25.799344Z", "channel": 4, "rssi": -101, "snr": 6, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:20:03.292958087Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 708564971, "time": "2019-10-30T09:20:03.278049Z", "channel": 2, "rssi": -103, "snr": 4.2, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:20:39.8296346Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 745098483, "time": "2019-10-30T09:20:39.816374Z", "channel": 0, "rssi": -105, "snr": 6.8, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:21:17.180863597Z", "frequency": 867.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 782446564, "time": "2019-10-30T09:21:17.163387Z", "channel": 5, "rssi": -99, "snr": 6.5, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:21:54.040153013Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 1833045291, "time": "2019-10-30T09:21:50.465152Z", "channel": 1, "rssi": -117, "snr": -8.8, "rf_chain": 1 } ] } { "time": "2019-10-30T09:22:29.511654817Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 854785243, "time": "2019-10-30T09:22:29.497823Z", "channel": 2, "rssi": -103, "snr": 4.5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:23:42.755126018Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 928023707, "time": "2019-10-30T09:23:42.742659Z", "channel": 0, "rssi": -107, "snr": 5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:24:18.639110848Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 963907563, "time": "2019-10-30T09:24:18.625485Z", "channel": 1, "rssi": -105, "snr": 5.8, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:24:55.28306133Z", "frequency": 867.9, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 1958174188, "time": "", "channel": 7, "rssi": -120, "snr": -5.8, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 1000557724, "time": "2019-10-30T09:24:55.270793Z", "channel": 7, "rssi": -106, "snr": 5, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:25:31.353312584Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 1036614987, "time": "2019-10-30T09:25:31.336913Z", "channel": 2, "rssi": -106, "snr": 3.5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:26:43.559696089Z", "frequency": 867.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-000080029c10db9b", "timestamp": 1350641547, "time": "2019-10-30T09:26:43.538084Z", "channel": 0, "rssi": -121, "snr": -8, "latitude": 52.41434, "longitude": 4.82983, "altitude": 30 }, { "gtw_id": "eui-0ba0000000000001", "timestamp": 2066446115, "time": "", "channel": 3, "rssi": -120, "snr": -5.5, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 1108829731, "time": "2019-10-30T09:26:43.545231Z", "channel": 3, "rssi": -105, "snr": 5.5, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:29:09.341263245Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-b827ebfffedcc77d", "timestamp": 691188883, "time": "2019-10-30T09:29:08.293512Z", "channel": 0, "rssi": -114, "snr": -9.2, "rf_chain": 1, "latitude": 52.44534, "longitude": 4.80526, "altitude": 9 }, { "gtw_id": "eui-0ba0000000000001", "timestamp": 2212201475, "time": "", "channel": 0, "rssi": -118, "snr": -5, "rf_chain": 1, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 1254585195, "time": "2019-10-30T09:29:09.409795Z", "channel": 0, "rssi": -108, "snr": 3, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:29:45.22748383Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 1290493323, "time": "2019-10-30T09:29:45.211594Z", "channel": 1, "rssi": -106, "snr": 4.2, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } ======================================================= SLEEVE DIPOLE ======================================================= { "time": "2019-10-30T08:50:42.160852166Z", "frequency": 867.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 4200017347, "time": "", "channel": 3, "rssi": -120, "snr": -5.5, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-60c5a8fffe760e60", "timestamp": 634622396, "time": "2019-10-30T08:50:42.134792Z", "channel": 0, "rssi": -117, "snr": -4.5, "rf_chain": 2, "latitude": 52.41479, "longitude": 4.82278, "altitude": 92 }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3242399435, "time": "2019-10-30T08:50:42.148086Z", "channel": 3, "rssi": -104, "snr": 4.5, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T08:51:18.683620517Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 4236531531, "time": "", "channel": 0, "rssi": -120, "snr": -6, "rf_chain": 1, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3278913635, "time": "2019-10-30T08:51:18.668856Z", "channel": 0, "rssi": -105, "snr": 5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T08:51:54.275352552Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", 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4, "rssi": -115, "snr": -6.8, "rf_chain": 3, "latitude": 52.41499, "longitude": 4.8225, "altitude": 95 }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3423540043, "time": "2019-10-30T08:53:43.294071Z", "channel": 0, "rssi": -105, "snr": 4.5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T08:54:20.418825781Z", "frequency": 867.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3460647612, "time": "2019-10-30T08:54:20.402946Z", "channel": 5, "rssi": -103, "snr": 4.2, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T08:55:34.260551005Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3534484011, "time": "2019-10-30T08:55:34.236924Z", "channel": 2, "rssi": -105, "snr": 5.5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T08:56:10.03123418Z", "frequency": 867.7, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 232914548, "time": "", "channel": 6, "rssi": -118, "snr": -8, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3570264164, "time": "2019-10-30T08:56:10.01847Z", "channel": 6, "rssi": -108, "snr": 2.8, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T08:57:23.613120309Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3643851723, "time": "2019-10-30T08:57:23.597446Z", "channel": 1, "rssi": -103, "snr": 4.8, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T08:59:12.954999546Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 415838779, "time": "", "channel": 0, "rssi": -118, "snr": -8.2, "rf_chain": 1, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3753188523, "time": "2019-10-30T08:59:12.939098Z", "channel": 0, "rssi": -109, "snr": 3, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T08:59:48.803988279Z", "frequency": 867.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 451686723, "time": "", "channel": 3, "rssi": -121, "snr": -6.5, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-60c5a8fffe760e60", "timestamp": 1181257216, 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-111, "snr": -7.3, "rf_chain": 3, "latitude": 52.41502, "longitude": 4.82245, "altitude": 93 }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3861695979, "time": "2019-10-30T09:01:01.44659Z", "channel": 2, "rssi": -107, "snr": 3.5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:02:15.307436482Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0ba0000000000001", "timestamp": 598193531, "time": "", "channel": 0, "rssi": -120, "snr": -6.2, "rf_chain": 1, "latitude": 52.407024, "longitude": 4.821103, "altitude": 20, "location_source": "registry" }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3935543395, "time": "2019-10-30T09:02:15.291896Z", "channel": 0, "rssi": -102, "snr": 5.5, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] } { "time": "2019-10-30T09:02:52.091992316Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-60c5a8fffe760e60", "timestamp": 1364551601, "time": "2019-10-30T09:02:52.063981Z", "channel": 5, "rssi": -112, "snr": -7.5, "rf_chain": 3, "latitude": 52.41504, "longitude": 4.8225, "altitude": 93 }, { "gtw_id": "eui-dca632fffe43df3e", "timestamp": 3972325515, "time": "2019-10-30T09:02:52.076312Z", "channel": 1, "rssi": -103, "snr": 6, "rf_chain": 1, "latitude": 52.45091, "longitude": 4.80436, "altitude": 10 } ] }