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43	43
44	44	----
45	45
46		-When users use LoRaWAN Basic Station， How to Change the Power for the LoRaWAN Basic Station connection?
	46	+First, you need to find out what is the chip module of the gateway?
47	47
	48	+(% class="box infomessage" %)
	49	+(((
	50	+cat /var/iot/chip
	51	+)))
	52	+
	53	+[[image:image-20220623140335-1.png||height="241" width="378"]]
	54	+
	55	+Gateways using the SX1301 LoRaWAN Concentrator are the LG308 and DLOS8.
	56	+
	57	+
	58	+**SX1301 Change Power for LoRaWAN Basic Station Connection example:**
	59	+
	60	+Gateway maintains a power index in the file: /etc/station/station-sx1301.conf for example:
	61	+
	62	+(% class="box" %)
	63	+(((
	64	+{
	65	+ /* If slave-X.conf present this acts as default settings */
	66	+ "SX1301_conf": { /* Actual channel plan is controlled by server */
	67	+ "lorawan_public": true, /* is default */
	68	+ "clksrc": 1, /* radio_1 provides clock to concentrator */
	69	+ /* path to the SPI device, un-comment if not specified on the command line e.g., RADIODEV=/dev/spidev0.0 */
	70	+ "device": "/dev/spidev1.0",
	71	+ /* freq/enable provided by LNS - only HW specific settings listed here */
	72	+
	73	+ ~|<~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-(% style="color:red" %)Add parameters:"tx_gain_lut"  :  [ TX_GAIN_LUT, .. ](% %)
	74	+
	75	+ "radio_0": {
	76	+ "type": "SX1257",
	77	+ "rssi_offset": -166.0,
	78	+ "tx_enable": true,
	79	+ "antenna_gain": 0
	80	+ },
	81	+ "radio_1": {
	82	+ "type": "SX1257",
	83	+ "rssi_offset": -166.0,
	84	+ "tx_enable": false
	85	+ }
	86	+ /* chan_multiSF_X, chan_Lora_std, chan_FSK provided by LNS */
	87	+ },
	88	+)))
	89	+
48	48	If users want to always use a higher power or a lower power. Users can modify the pa_gain,mix_gain, and dig_gain to specify rf_power to achieve this purpose. This is not recommended, because this might break the regulator for a specific country.
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