Great when it works, but occasionally locks up as though there's an overheating problem.
As a broadcast engineer, I like to be able to occasionally tune-in to clients' HD FM broadcast subcarriers as a "quick check" that things are running as expected. This model HD Radio tuner seems to have occasional issues with the automatic level control (ALC) circuits, and will go silent with no HD data display, or will freeze up while indicating a "17" signal strength while tuned to a known operational FM broadcast frequency with HD subcarriers and have no audio output. When this happens, the unit has to be powered-off and back on again, sometimes several times or having to be left turned off for a few minutes. This leads me to suspect that something in the tuning/ALC circuits may be overheating. I am considering doing infrared thermographic testing to help determine if that is indeed the case, and possibly modifying the unit with a small fan if necessary to make it more reliable.
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