Hi,
We have 3 active gateways and are using the AU915 band in Australia. We are seeing the one of our Cisco LoRaWAN gateways downlinking on the 869 MHz band. I am seeing this through TTN console
Does anyone have any suggestions as to where this one gateway is misconfigured? Is there anything I need to read or look into regarding downlinking and the frequency used?
Below is a copy of my config.json form my Cisco Gateway for reference:
“SX1301_array_conf”:[
{
“board_type”: “MASTER”,
“board_rx_freq”: 921500000, /* 908600000 radio RX central frequency in Hz /
“board_rx_bw”: 13000000, / 13000000 radio RX bandwidth in Hz /
“full_duplex”: false, / radio mode /
“rf_chain_conf”:[
{
/ RX /
“rx_enable”: true,
“rssi_offset”: -202.5,
“rssi_offset_coeff_a”: 20,
“rssi_offset_coeff_b”: 2925,
/ TX /
“tx_enable”: true,
“tx_freq_min”: 923300000,
“tx_freq_max”: 927500000,
“tx_lut”:[
{ “rf_power”: 9, “fpga_dig_gain”: 5, “ad9361_atten”: 104, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -23, “ad9361_tcomp_coeff_b”: 3177 },
{ “rf_power”: 11, “fpga_dig_gain”: 5, “ad9361_atten”: 96, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -21, “ad9361_tcomp_coeff_b”: 2888 },
{ “rf_power”: 12, “fpga_dig_gain”: 5, “ad9361_atten”: 93, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -20, “ad9361_tcomp_coeff_b”: 2683 },
{ “rf_power”: 13, “fpga_dig_gain”: 5, “ad9361_atten”: 88, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -20, “ad9361_tcomp_coeff_b”: 2530 },
{ “rf_power”: 14, “fpga_dig_gain”: 5, “ad9361_atten”: 84, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -19, “ad9361_tcomp_coeff_b”: 2367 },
{ “rf_power”: 16, “fpga_dig_gain”: 5, “ad9361_atten”: 75, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -18, “ad9361_tcomp_coeff_b”: 1943 },
{ “rf_power”: 18, “fpga_dig_gain”: 5, “ad9361_atten”: 67, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -16, “ad9361_tcomp_coeff_b”: 1537 },
{ “rf_power”: 20, “fpga_dig_gain”: 5, “ad9361_atten”: 59, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -15, “ad9361_tcomp_coeff_b”: 1135 },
{ “rf_power”: 22, “fpga_dig_gain”: 5, “ad9361_atten”: 51, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -13, “ad9361_tcomp_coeff_b”: 714 },
{ “rf_power”: 24, “fpga_dig_gain”: 5, “ad9361_atten”: 42, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -11, “ad9361_tcomp_coeff_b”: 262 },
{ “rf_power”: 25, “fpga_dig_gain”: 5, “ad9361_atten”: 38, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -9, “ad9361_tcomp_coeff_b”: -6 },
{ “rf_power”: 26, “fpga_dig_gain”: 5, “ad9361_atten”: 33, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -8, “ad9361_tcomp_coeff_b”: -193 },
{ “rf_power”: 27, “fpga_dig_gain”: 5, “ad9361_atten”: 29, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -7, “ad9361_tcomp_coeff_b”: -356 },
{ “rf_power”: 28, “fpga_dig_gain”: 5, “ad9361_atten”: 24, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -6, “ad9361_tcomp_coeff_b”: -470 },
{ “rf_power”: 29, “fpga_dig_gain”: 5, “ad9361_atten”: 18, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -6, “ad9361_tcomp_coeff_b”: -534 },
{ “rf_power”: 30, “fpga_dig_gain”: 5, “ad9361_atten”: 11, “ad9361_auxdac_vref”: 3, “ad9361_auxdac_word”: 770, “ad9361_tcomp_coeff_a”: -4, “ad9361_tcomp_coeff_b”: -589 }]
}],
“SX1301_conf”:[
{
“chip_enable”: true,
“chip_center_freq”: 917500000, / was 907800000 /
“chip_rf_chain”: 0,
“chan_multiSF_0”: { “chan_rx_freq”: 916800000 , “spread_factor”: “7-12” },
“chan_multiSF_1”: { “chan_rx_freq”: 917000000 , “spread_factor”: “7-12” },
“chan_multiSF_2”: { “chan_rx_freq”: 917200000 , “spread_factor”: “7-12” },
“chan_multiSF_3”: { “chan_rx_freq”: 917400000 , “spread_factor”: “7-12” },
“chan_multiSF_4”: { “chan_rx_freq”: 917600000 , “spread_factor”: “7-12” },
“chan_multiSF_5”: { “chan_rx_freq”: 917800000 , “spread_factor”: “7-12” },
“chan_multiSF_6”: { “chan_rx_freq”: 918000000 , “spread_factor”: “7-12” },
“chan_multiSF_7”: { “chan_rx_freq”: 918200000 , “spread_factor”: “7-12” },
“chan_LoRa_std” : { “chan_rx_freq”: 917500000 , “bandwidth”: 500000, “spread_factor”: 8 },
“chan_FSK” : { “chan_rx_freq”: 917500000 , “bandwidth”: 125000, “bit_rate”: 50000 } / was 907800000 /
},{
“chip_enable”: false,
“chip_center_freq”: 909400000,
“chip_rf_chain”: 0,
“chan_multiSF_0”: { “chan_rx_freq”: 908700000 , “spread_factor”: “7-12” },
“chan_multiSF_1”: { “chan_rx_freq”: 908900000 , “spread_factor”: “7-12” },
“chan_multiSF_2”: { “chan_rx_freq”: 909100000 , “spread_factor”: “7-12” },
“chan_multiSF_3”: { “chan_rx_freq”: 909300000 , “spread_factor”: “7-12” },
“chan_multiSF_4”: { “chan_rx_freq”: 909500000 , “spread_factor”: “7-12” },
“chan_multiSF_5”: { “chan_rx_freq”: 909700000 , “spread_factor”: “7-12” },
“chan_multiSF_6”: { “chan_rx_freq”: 909900000 , “spread_factor”: “7-12” },
“chan_multiSF_7”: { “chan_rx_freq”: 910100000 , “spread_factor”: “7-12” },
“chan_LoRa_std” : { “chan_rx_freq”: 909400000 , “bandwidth”: 500000, “spread_factor”: 8 },
“chan_FSK” : { “chan_rx_freq”: 909400000 , “bandwidth”: 125000, “bit_rate”: 50000 }
}],
“FSK_sync”: “C194C1”,
“loramac_public”: true,
“nb_dsp”: 1,
“dsp_stat_interval”: 10,
“aes_key”: “YOUR KEY HERE”,
“calibration_temperature_celsius_room”: 22,
“calibration_temperature_code_ad9361”: 77,
“fts_version”: 1,
“fts_match_crc_error”: false
}],
“gateway_conf”: {
“gateway_ID”: “16 HEX DIGITS”,
/ change with default server address/ports /
“server_address”: “A web site”,
“serv_port_up”: 1700,
“serv_port_down”: 1700,
/ adjust the following parameters for your network /
“keepalive_interval”: 10,
“stat_interval”: 30,
“push_timeout_ms”: 100,
/ forward only valid packets /
“forward_crc_valid”: true,
“forward_crc_error”: false,
“forward_crc_disabled”: false,
/ link testing mote /
“link_mote”: “00CC01AF”,
/ Beaconing parameters */
“beacon_conf”:{
“period”: 128,
“freq_hz”: 923300000,
“freq_nb”: 8,
“freq_step”: 600000,
“datarate”: 12,
“bw_hz”: 500000,
“power”: 14,
“infodesc”: 0
}
},
“gps_conf”: {
“gw_latitude”: 0,
“gw_longitude”: 0,
“gw_altitude”: 0,
“fixed_altitude”: false
}
}