您好, 我手上有两块SX1278的实验板,将发射频率改为433MHz之后(出厂值:470MHz)加上专用天线进行点对点通讯,测试结果最大通讯距离为50米,这正常吗??
出厂源程序为:dwPara= 433000000;//Frequency
CommConfig(gpTopLayer, PHY_LAYER_LEVEL, SX1276_PARA_IDX_FREQ, CLPC_WRITE, &dwPara);
dwPara= 350;//Timeout
CommConfig(gpTopLayer, PHY_LAYER_LEVEL, SX1276_PARA_IDX_TIMEOUT, CLPC_WRITE, &dwPara);
dwPara= SX1276_BW_125K;//BW
CommConfig(gpTopLayer, PHY_LAYER_LEVEL, SX1276_PARA_IDX_BW, CLPC_WRITE, &dwPara);
dwPara= SX1276_SF_512;//Spread Factor
CommConfig(gpTopLayer, PHY_LAYER_LEVEL, SX1276_PARA_IDX_SF, CLPC_WRITE, &dwPara);
//LL
dwPara= 450;//Timeout
您好, 我手上有两块SX1278的实验板,将发射频率改为433MHz之后(出厂值:470MHz)加上专用天线进行点对点通讯,测试结果最大通讯距离为50米,这正常吗??
出厂源程序为:dwPara= 433000000;//Frequency
CommConfig(gpTopLayer, PHY_LAYER_LEVEL, SX1276_PARA_IDX_FREQ, CLPC_WRITE, &dwPara);
dwPara= 350;//Timeout
CommConfig(gpTopLayer, PHY_LAYER_LEVEL, SX1276_PARA_IDX_TIMEOUT, CLPC_WRITE, &dwPara);
dwPara= SX1276_BW_125K;//BW
CommConfig(gpTopLayer, PHY_LAYER_LEVEL, SX1276_PARA_IDX_BW, CLPC_WRITE, &dwPara);
dwPara= SX1276_SF_512;//Spread Factor
CommConfig(gpTopLayer, PHY_LAYER_LEVEL, SX1276_PARA_IDX_SF, CLPC_WRITE, &dwPara);
//LL
dwPara= 450;//Timeout
举报