Well then, maybe you will accept my previous experience as a scout/sniper and counter sniper in the 101st Airborne Division.

We had several different kinds of night vision devices, and I really don't remember complaining about humming or whistling.

Having been in combat in both a jungle and desert environment, I promise I would not have missed that little issue.

Now I will acknowledge the thermal imager on the old TOW missile system did produce some noise, so did the vehicle that carried it there. Kinda a wash, yes?