While I was driving around yesterday I saw at least one false that was automatically locked out but the detector (in Auto Sensitivity Mode) never alerted. It beeped and the display said "STORED" but that's it.
I know the manual says that "sensitivity" in Auto Mode is reduced based on the speed of your vehicle, but what does that actually mean? From a hardware perspective, how does one change the sensitivity of a radio receiver? I'm no expert on radio receivers, but AFAIK your receive sensitivity is what it is.
At my last company I designed wireless monitoring devices for industrial equipment. When we wanted to simulate fringe reception conditions in order to test the error detection/correction features, we had to put an attenuator in series with the antenna lead in order to cut the signal level down; there was no adjustment we could make to the radio itself to make it less sensitive.
Here at home, when they installed my cable modem, the tech measured the signal strength and found it was a bit too high, so he installed an attenuator in the cable line leading to the modem. Again, there was no adjustment on the RF receiver itself to reduce the sensitivity.
Now, maybe the Escort receiver design is more sophisticated and has the ability to make this receive sensitivity adjustment. For example, maybe they have a way of switching in an attenuator internally when needed. Or maybe the receiver is always at maximum sensitivity and the unit simply
does not alert you unless the RSSI is above a certain threshold which varies with your vehicle's speed.
Based on my (extremely limited) experience with the ci, it seems that the detector still "sees" (and locks out) the same signals whether you're in Highway Mode or Auto Sensitivity Mode; the main difference seems to be that in Auto Mode it's less likely to alert you to what it's receiving.
Anyway that's my theory. Go ahead and poke holes in it.
Bookmarks