Ebyte E104-BT52 - 8.3 BER(Bit Error Rate) is high; Welding instruction; 9.1 Reflow soldering temperature

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electrostatic susceptibility;
 Please ensure the humidity is within limited range, some parts are sensitive to humidity;
 Please avoid using modules under too high or too low temperature.
8.3 BER(Bit Error Rate) is high
 There are co-channel signal interference nearby, please be away from interference sources or modify
frequency and channel to avoid interference;
 Poor power supply may cause messy code. Make sure that the power supply is reliable;
 The extension line and feeder quality are poor or too long, so the bit error rate is high.
9 Welding instruction
9.1 Reflow soldering temperature
Profile Feature
Sn-Pb Assembly
Pb-Free Assembly
Solder Paste
Sn63/Pb37
Sn96.5/Ag3/Cu0.5
Preheat Temperature min （Tsmin）
100℃
150℃
Preheat temperature max (Tsmax)
150℃
200℃
Preheat Time (Tsmin to Tsmax)(ts)
60-120 sec
60-120 sec
Average ramp-up rate(Tsmax to Tp)
3℃/second max
3℃/second max
Liquidous Temperature (TL)
183℃
217℃
Time（tL）Maintained Above（TL）
60-90 sec
30-90 sec
Peak temperature（Tp）
220-235℃
230-250℃
Aveage ramp-down rate（Tp to Tsmax）
6℃/second max
6℃/second max
Time 25℃ to peak temperature
6 minutes max
8 minutes max