EU 863-870MHz ISM Band
This page is intended to collect information on different channel plans that are in use.
As long as TTN does not support MAC commands to communicate frequencies from the router to the node, agreement on a frequency plan is required.
Also note that the MAC commands related to frequencies are processed by the network server (router), not by the gateway. This means that the router needs to know about the frequencies supported by every gateway connecting to it, or more practically, all gateways on the same router need to adhere to the same freq. plan.
LoRaWAN Specification 1R0
LoRaWAN Default Channels:
868.10 Mhz (g1)
868.30 MHz (g1)
868.50 MHz (g1)
Those channels are the minimum set that all network gateways should always be listening on.
The LoRaWAN enforces a per sub-band duty-cycle limitation. The ETSI regulations allow the choice of using either a duty-cycle limitation or a so- called Listen Before Talk Adaptive Frequency Agility (LBT AFA) transmissions management. The current LoRaWAN specification exclusively uses duty-cycled limited transmissions to comply with the ETSI regulations.
Default radiated transmit output power: 14 dBm
The following table gives the list of frequencies that should be used by end-devices to broadcast the JoinReq message.
864.10 Mhz (g)
864.30 Mhz (g)
864.50 Mhz (g)
868.10 Mhz (g1)
868.30 Mhz (g1)
868.50 Mhz (g1)
Class B beacon recommended frequency: 869.525 MHz (g3, 27dBm)
All unicast&multicastClass B downlinks use a single frequency channel defined by the PingSlotChannelReq MAC command. The default frequency is 869.525MHz
Bands & Regulations
ERC Recommendation 70-03
g 863.0 – 868.0 MHz 1% or LBT+AFA, 25 mW (=14dBm)
g1 868.0 – 868.6 MHz 1% or LBT+AFA, 25 mW
g2 868.7 – 869.2 MHz 0.1% or LBT+AFA, 25 mW
g3 869.4 – 869.65 MHz 10% or LBT+AFA, 500 mW (=27dBm)
g4 869.7 – 870.0 MHz 1% or LBT+AFA, 25 mW (no dutcy-cyle requirement if power < 5 mW/7 dBm)
LBT+AFA: Listen Before Talk (LBT) with Adaptive Frequency Agility (AFA).
Gateways: SX1301/SX1257 based
The gateway receive bandwidth extends from 863MHz to 870 MHz. However the 10 different channels cannot be dispatched arbitrarily inside this entire range because of the way the radio front-end receiver is actually implemented (2x SX1257). The 10 channels must fall in two 1.0 MHz wide intervals.
Default configuration Semtech packet forwarder:
Chan , Freq , Modulation , BW , SF , radio, band, duty-cyle limit
0, 868.1 MHz, LoRa, 125kHz, all SF, 1, g1
1, 868.3 MHz, LoRa, 125kHz, all SF, 1, g1
2, 868.5 MHz, LoRa, 125kHz, all SF, 1, g1
3, 867.1 MHz, LoRa, 125kHz, all SF, 0, g
4, 867.3 MHz, LoRa, 125kHz, all SF, 0, g
5, 867.5 MHz, LoRa, 125kHz, all SF, 0, g
6, 867.7 MHz, LoRa, 125kHz, all SF, 0, g
7, 867.9 MHz, LoRa, 125kHz, all SF, 0, g
8, 868.3 MHz, LoRa, 250kHz, SF7, 1, g1 (=10 kbps)
9, 868.8 MHz, FSK, 150kHz, 50kbps channel, 1, g2
LoRaMac-Node (Semtech)
// Band = { DutyCycle, TxMaxPower, LastTxDoneTime, TimeOff }
#define BAND0 { 100 , TX_POWER_14_DBM, 0, 0 } // 1.0 %
#define BAND1 { 100 , TX_POWER_14_DBM, 0, 0 } // 1.0 %
#define BAND2 { 1000, TX_POWER_14_DBM, 0, 0 } // 0.1 %
#define BAND3 { 10 , TX_POWER_14_DBM, 0, 0 } // 10.0 %
#define BAND4 { 100 , TX_POWER_14_DBM, 0, 0 } // 1.0 %
// Channel = { Frequency [Hz], { ( ( DrMax << 4 ) | DrMin ) }, Band }
#define LC1 { 868100000, { ( ( DR_5 << 4 ) | DR_0 ) }, 1 }
#define LC2 { 868300000, { ( ( DR_6 << 4 ) | DR_0 ) }, 1 } // DR6 = SF7BW250
#define LC3 { 868500000, { ( ( DR_5 << 4 ) | DR_0 ) }, 1 }
#define LC4 { 867100000, { ( ( DR_5 << 4 ) | DR_0 ) }, 0 }
#define LC5 { 867300000, { ( ( DR_5 << 4 ) | DR_0 ) }, 0 }
#define LC6 { 867500000, { ( ( DR_5 << 4 ) | DR_0 ) }, 0 }
#define LC7 { 867700000, { ( ( DR_5 << 4 ) | DR_0 ) }, 0 }
#define LC8 { 867900000, { ( ( DR_5 << 4 ) | DR_0 ) }, 0 }
#define LC9 { 868800000, { ( ( DR_7 << 4 ) | DR_7 ) }, 2 } // FSK
Note: LC2 is two channels (BW125 and BW250)
IBM LMIC
Note: in the Arduino adaptation of LMIC v1.5 we have modified these default frequencies to match the Semtech packet forwarder defaults.
// Default frequency plan for EU 868MHz ISM band
// Bands:
// g1 : 1% 14dBm
// g2 : 0.1% 14dBm
// g3 : 10% 27dBm
enum { EU868_F1 = 868100000, // g1 SF7-12
EU868_F2 = 868300000, // g1 SF7-12 FSK SF7/250
EU868_F3 = 868500000, // g1 SF7-12
EU868_F4 = 868850000, // g2 SF7-12
EU868_F5 = 869050000, // g2 SF7-12
EU868_F6 = 869525000, // g3 SF7-12
EU868_J4 = 864100000, // g2 SF7-12 used during join
EU868_J5 = 864300000, // g2 SF7-12 ditto
EU868_J6 = 864500000, // g2 SF7-12 ditto
KPN
The KPN setup has been validated with the Loramote default software and the Semtech code from Github (https://github.com/Lora-net/LoRaMac-node) it is important to adjust the used frequency setup in the LoRaMac-board.h file as follows:
// Channel = { Frequency [Hz], { ( ( DrMax << 4 ) | DrMin ) }, Band }
#define LC1 { 868100000, { ( ( DR_SF7 << 4 ) | DR_SF12 ) }, 1 }
#define LC2 { 868300000, { ( ( DR_SF7 << 4 ) | DR_SF12 ) }, 1 }
#define LC3 { 868500000, { ( ( DR_SF7 << 4 ) | DR_SF12 ) }, 1 }
Rx2 - 869.525 MHz
Actility ThingPark Wireless
LC1 868.10 g1 SF7-SF12
LC2 868.30 g1 SF7-SF12
LC3 868.50 g1 SF7-SF12
LC4 868.85 g2 SF7-SF12
LC5 869.05 g2 SF7-SF12
LC6 869.525 g3 SF7-SF12
LC7 868.3 g1 SF7BW250
FC1 868.30 g1 FSK 250Khz 100 kbps