Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1D User manualCopyright ©2012–2018,Chengdu Ebyte Electronic Technology Co.,Ltd. 96.2 Reflow Soldering Curve7. Related ModelModel Chip FrequencyHzTransmitpowerdBmTestdistancekmAir Datarate Packaging SizemmAntennaTypeE73-2G4M 08S1C nRF52840 2.4G 8 0.1 BLE 4.2/5.0 SM D 13.0 * 18.0 PCB/IPXE73-2G4M 04S1A nRF52810 2.4G 4 0.1 BLE 4.2 PCB/IPEX 17.5 * 28.7 PCB/IPXE73-2G4M 04S1D nRF51822 2.4G 4 0.1 BLE 4.2 PCB/IPX 17.5 * 28.7 PCB/IPXE73-2G4M 04S1B nRF52832 2.4G 4 0.1 BLE 4.2/5.0 PCB/IPX 17.5 * 28.7 PCB/IPX8. Antenna Type8.1 Antenna recommendationThe antenna plays an important role in the communication process. The inferior antenna often has a great impact on thecommunication system. Therefore, we recommend some antennas that support our wireless modules and have excellen tperformance and reasonable price.