First Problem: Detectors hate
each other - Every superheterodyne receiver—that includes
all of today's radar detectors—receives and transmits during
normal operation. As you probably know, these detector signals sometimes
set off other detectors. Out on the road, other detectors are the
most common nuisance signal V1 has to deal with.
What's not so obvious is this. Even if a detector isn't
set off by another one, its internal defense system
may be affecting its radar sensitivity. This problem
compounds when you bring two operating detectors
into the same car. Up close, the transmitted signals
become much stronger than a normal design would
anticipate, and the weak signals that wouldn't bother
at normal distances can send the defense system
V1 inspects every signal it receives and decides, Is
it really radar? Is it maybe radar?
Is it not radar. But it isn't designed
to operate within a few feet of another detector,
and we know of no other detector designed for that
high-stress condition either.
Here's the irony: If you put two detectors together and
one of them seems sluggish, you might decide that
one is inferior. In fact, it may have a superior
defense system, and the detector that appears to
work better may be a grotesque polluting transmitter.
It's more trouble to test detectors by powering up one
at a time, but it's the only way to tell which is
better at finding radar.