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LIT-SWASS-EXT-OP-051123.pmd
© 2005 Sabine, Inc
1. Microwave ovens
In the vast majority of situations, interference from microwave ovens will not affect perfor-
mance of your SWM7000 series microphone systems. Since barriers such as walls work
to block interference, a microwave oven will likely present a problem only when located in
fairly close proximity within the same room as the wireless receiver (or reception antenna).
See caution below.
Commercial quality microwave ovens present a bigger potential problem. They sweep
over a wider band of frequencies than the limited band affected by consumer units, and
use two magnetron tubes which alternate to avoid inactivity during a power cycle. Fortu-
nately, Sabine systems are only affected by such ovens in close proximity to receiver
antennas. That protection, plus the availability of 70 different RF channels to choose from,
makes serious interference problems arising from microwave ovens avoidable and un-
likely. See caution below.
2. Wireless Local Area Networks (WLANS)
These computer network devices allow computers to connect via wireless devices that act
as both receivers and transmitters. These low-powered transceivers often have select-
able channels and can utilize the entire 2.4 GHz band. In general, Sabine microphones
should not be affected by these WLANS because their spread spectrum technology does
not present a problem for the Sabine Smart Spectrum
TM
system. See caution below.
3. Cordless phones
These home telephones broadcast at very low power and should not present interference
problems for your Sabine wireless. This is especially true if the telephone uses spread
spectrum technology. See caution below.
4. Wireless Video Cameras
Certain wireless video cameras (X10, for example) use the 2.4 GHz band. These devices
are also very low power and, in general, should not present a problem when using the
SWM7000 system. See Section 5 Receiver Operation for methods of optimizing clear
reception and minimizing interference. See caution below.
As a general precaution, keep 2.4 GHz cordless telephones, microwave ovens,
WLAN antennas and 2.4 GHz wireless video camera transmitters twice the dis-
tance from your Sabine wireless microphone system antennas as that of your Sabine
2.4 GHz transmitters.
Antenna Placement Caution
