Both X and K bands are well known to motorists who have
traveled with Radar detectors. Introduced first was X band
Radar which became common during the
1960
s. In the mid
1970
s the lower powered, more difficult to detect K band Radar
was introduced. In
1987
,
fcc
approval was given for Radar
equipment using a third frequency, Ka. In response to this,
beltronics
introduced the first Radar detectors capable of
detecting X, K and Ka band signals. In late
1990
,
fcc
approval
was given to Wideband Ka:
34.2 gh
z
to
35.2 gh
z
. Once again,
bel
responded with Wideband Ka detection. Today, the
bel
990
International
detects the
complete
Super Wideband Ka
frequency allotted for police monitoring—
33.4 gh
z
to
36.0 gh
z
,
as well as all International frequencies.
(See page 27 for a
complete listing of frequencies.)
Total Tracking Laser
™
(ttl
™
)
Unlike Radar signals, which are highly reflective, Laser signals
have very poor reflective characteristics. Many of today’s
Laser detectors do not have the high sensitivity necessary to
detect Laser within a large “field of view”.
bel
990
International
incorporates
bel’s
number one rated Laser detection. Twin
Laser ports detect energy far outside the main Laser beam—
including off-axis signals—providing the largest achievable
360
° “field of view.” The alerts provided by your unit are the
same whether signals are received from the front or rear.
Safety Warning System
®
(sws
™
)
—What is it?
The Radio Association Defending Airwave Rights, Inc.
(
r.a.d.a.r.
) conceived and developed the Safety Warning
System
®
. The concept behind this system is to warn motorists
of potential road hazards by employing Safety Warning System
®
transmitters in areas such as construction zones, accident
sites and detours. These
sws
™
transmitters operate within
the
24 gh
z
portion of the K band frequency, and broadcast
uniquely coded signals that are detected by your unit.
Note: North American
sws
™
messages are not detected outside
North America.
