I am measuring dc/dc converter emissions against the RTCA/DO-160 section 21 CE limit (class L). Above about 20 MHz, there are some BB emissions. If I use a 9 kHz BW, they just fail. At 1 kHz BW, they pass. My copy of RTCA/DO-160D says to use 1 kHz BW over the CE frequency range (0.15 - 30 MHz). That seems kind of low to me. Can anyone confirm the same bandwidth is used for DO-160E as well, or if it has maybe increased?
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