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 with the use of a 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-000080029c10dc24 52.46243671 4.59471891 45 The Things Outdoor Gateway ? outdoor https://www.google.com/maps/place/52°27'44.8"N+4°35'41.0"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-0000024b08030c5f 52.34012466 4.91736333 40 Kerlink Station Standard Kerlink antenna outdoor https://www.google.com/maps/place/52°20'24.5"N+4°55'02.5"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": "2019-09-13T11:45:20.98691919Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2114012747, "time": "2019-09-13T11:45:17.615331Z", "channel": 2, "rssi": -117, "snr": -4.5, "rf_chain": 1 } ] } { "time": "2019-09-13T11:45:57.756050286Z", "frequency": 867.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2150785275, "time": "2019-09-13T11:45:54.387863Z", "channel": 4, "rssi": -120, "snr": -4.5 } ] } { "time": "2019-09-13T11:46:34.486673112Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2187511771, "time": "2019-09-13T11:46:31.114363Z", "channel": 0, "rssi": -121, "snr": -4.5, "rf_chain": 1 } ] } { "time": "2019-09-13T11:47:11.957310271Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2224986547, "time": "2019-09-13T11:47:08.589145Z", "channel": 1, "rssi": -115, "snr": -8, "rf_chain": 1 } ] } { "time": "2019-09-13T11:49:37.546453897Z", "frequency": 867.7, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2370578348, "time": "2019-09-13T11:49:34.180963Z", "channel": 6, "rssi": -119, "snr": -4.2 } ] } { "time": "2019-09-13T11:50:50.01960837Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2443043155, "time": "2019-09-13T11:50:46.64578Z", "channel": 2, "rssi": -116, "snr": -2, "rf_chain": 1 } ] } { "time": "2019-09-13T11:52:03.086595404Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2516106987, "time": "2019-09-13T11:51:59.709621Z", "channel": 0, "rssi": -119, "snr": -1.8, "rf_chain": 1 } ] } { "time": "2019-09-13T11:54:31.037880011Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2664057891, "time": "2019-09-13T11:54:27.660543Z", "channel": 0, "rssi": -120, "snr": -4, "rf_chain": 1 } ] } { "time": "2019-09-13T11:55:07.50174123Z", "frequency": 867.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-0000024b08030c5f", "gtw_trusted": true, "timestamp": 1272843979, "time": "", "channel": 4, "rssi": -116, "snr": -8.5, "latitude": 52.340126, "longitude": 4.917363, "altitude": 40 } ] } { "time": "2019-09-13T11:56:20.405030386Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2773312547, "time": "2019-09-13T11:56:16.915212Z", "channel": 2, "rssi": -120, "snr": -5.5, "rf_chain": 1 } ] } { "time": "2019-09-13T11:58:47.593860064Z", "frequency": 867.7, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 2920604916, "time": "2019-09-13T11:58:44.207599Z", "channel": 6, "rssi": -118, "snr": -4.5 } ] } { "time": "2019-09-13T12:00:36.27776835Z", "frequency": 867.9, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3029203732, "time": "2019-09-13T12:00:32.806428Z", "channel": 7, "rssi": -119, "snr": -5.2 } ] } { "time": "2019-09-13T12:01:13.306330246Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3066325475, "time": "2019-09-13T12:01:09.928176Z", "channel": 1, "rssi": -117, "snr": -7.5, "rf_chain": 1 } ] } { "time": "2019-09-13T12:02:26.498766386Z", "frequency": 867.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3139518539, "time": "2019-09-13T12:02:23.12125Z", "channel": 3, "rssi": -120, "snr": -4.5 } ] } { "time": "2019-09-13T12:03:02.806520621Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3175771963, "time": "2019-09-13T12:02:59.37468Z", "channel": 0, "rssi": -120, "snr": -4.5, "rf_chain": 1 } ] } ======================================================= SLEEVE DIPOLE ======================================================= { "time": "2019-09-13T12:07:32.416825825Z", "frequency": 867.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3445441819, "time": "2019-09-13T12:07:29.044578Z", "channel": 3, "rssi": -118, "snr": 1 } ] } { "time": "2019-09-13T12:08:09.64634698Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3482663891, "time": "2019-09-13T12:08:06.266656Z", "channel": 0, "rssi": -120, "snr": -3.8, "rf_chain": 1 } ] } { "time": "2019-09-13T12:09:22.025344659Z", "frequency": 867.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-000080029c10dc24", "timestamp": 2317968531, "time": "", "channel": 1, "rssi": -119, "snr": -6, "latitude": 52.462437, "longitude": 4.594719, "altitude": 45, "location_source": "registry" } ] } { "time": "2019-09-13T12:09:58.761182086Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3591784075, "time": "2019-09-13T12:09:55.386861Z", "channel": 2, "rssi": -120, "snr": -7.5, "rf_chain": 1 } ] } { "time": "2019-09-13T12:10:34.87835908Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-000080029c10db9b", "timestamp": 356989876, "time": "2019-09-13T12:10:34.554792Z", "channel": 5, "rssi": -120, "snr": -6.8, "rf_chain": 1, "latitude": 52.41425, "longitude": 4.82982, "altitude": 30 }, { "gtw_id": "eui-aa555a0000088013", "timestamp": 3627951987, "time": "2019-09-13T12:10:31.55478Z", "channel": 0, "rssi": -120, "snr": -2.8, "rf_chain": 1 } ] } { "time": "2019-09-13T12:11:12.12800812Z", "frequency": 867.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3665150004, "time": "2019-09-13T12:11:08.752804Z", "channel": 5, "rssi": -110, "snr": -8.5 } ] } { "time": "2019-09-13T12:11:48.026590879Z", "frequency": 868.3, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3701048787, "time": "2019-09-13T12:11:44.651594Z", "channel": 1, "rssi": -113, "snr": -5.8, "rf_chain": 1 } ] } { "time": "2019-09-13T12:12:24.516522391Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3737542331, "time": "2019-09-13T12:12:21.145146Z", "channel": 2, "rssi": -118, "snr": -2, "rf_chain": 1 } ] } { "time": "2019-09-13T12:13:00.540234555Z", "frequency": 867.7, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-000080029c10dc24", "timestamp": 2536488587, "time": "", "channel": 3, "rssi": -121, "snr": -6.8, "latitude": 52.462437, "longitude": 4.594719, "altitude": 45, "location_source": "registry" } ] } { "time": "2019-09-13T12:13:36.61631788Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3809637627, "time": "2019-09-13T12:13:33.240453Z", "channel": 0, "rssi": -121, "snr": -7, "rf_chain": 1 } ] } { "time": "2019-09-13T12:14:50.266409401Z", "frequency": 867.9, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3883283876, "time": "2019-09-13T12:14:46.886718Z", "channel": 7, "rssi": -118, "snr": -1 } ] } { "time": "2019-09-13T12:15:26.426713462Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3919448795, "time": "2019-09-13T12:15:23.051643Z", "channel": 2, "rssi": -120, "snr": -4.8, "rf_chain": 1 } ] } { "time": "2019-09-13T12:16:03.227109441Z", "frequency": 868.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 3956241947, "time": "2019-09-13T12:15:59.844802Z", "channel": 0, "rssi": -120, "snr": -4.5, "rf_chain": 1 } ] } { "time": "2019-09-13T12:16:40.238025661Z", "frequency": 867.1, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-000080029c10dc24", "timestamp": 2756182563, "time": "", "channel": 0, "rssi": -121, "snr": -8.5, "latitude": 52.462437, "longitude": 4.594719, "altitude": 45, "location_source": "registry" } ] } { "time": "2019-09-13T12:17:53.152416036Z", "frequency": 868.5, "modulation": "LORA", "data_rate": "SF7BW125", "coding_rate": "4/5", "gateways": [ { "gtw_id": "eui-aa555a0000088013", "timestamp": 4066049003, "time": "2019-09-13T12:17:49.651879Z", "channel": 2, "rssi": -119, "snr": -5, "rf_chain": 1 } ] }