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Everything You Ever Wanted To Know About the JRC NRD 545
(But Were Afraid To Ask)

The following image shows a visual display of audio from both the JRC NRD 545 and the Icom R-7000 receivers, each tuned to 130.450 MHz in AM mode, receiving the same exact ACARS packet, using the same antenna (fed through an amplifier and splitter). The 545 bandwidth was set to 6 kHz.

The R-7000 is the display on the top, the 545 is on the bottom.

The amplitude of the signal with the R-7000 hardly varies at all, while the very slow AGC action of the 545 can clearly be seen. While you can vary the AGC time in some modes on the 545, sadly you cannot in AM mode!