User Manual

ThingMagic Nano User Guide 9
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Current Draw vs. DC Voltage and RF Output Level
As shown in the chart, the current draw when the RF output level is set to +27 dBm reaches the limit of 1A
when the DC input voltage is below 3.7V. Below the 3.7 VDC input level, the RF level will no longer reach
27 dBm, although no error message will be returned. The input Voltage should be maintained above 3.7V if
the RF output power setting is above +25 dBm. 3.5 V is adequate for an RF output power level of +26 dBm,
and 3.3V is adequate for an RF output power level of +25 dBm and below. The chart below shows the
impact of the input DC Voltage on the RF output level for +25 dBm and +27 dBm RF power levels.