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General
Q&As:
Q: What are possible interferences that
exist?
A: 2.4GHz cordless phones, and 2.4GHz wireless computer networks (Wi-Fi
Router) are the top two products on the market today that seem to
cause interference problems with wireless camera systems. Strong static
interference, large horizontal lines rolling upward, an increased
noise level, and an unsteady picture are all possible problems the
wireless camera system can produce. Please refer to the other equipment
manufacturers for exact frequency specifications. If the wireless
camera is channel selectable (not all models), please try to change
channels until an acceptable picture is displayed. When using multiple
wireless cameras, make certain they are using different channel numbers
and set camera's apart at least 15ft from each other.
Q: What are the frequencies that FCC allows to use in USA
and Canada without license?
A: 900MHz, 2.4GHz, and 5.8GHz. Mini-Airwatch and OutdoorWatch wireless
cameras utilize the 2.4GHz frequency.
Q: Can I connect wireless system onto a DVR and record?
A: Yes. There are 2 options.
1. One channel recording: connect one wireless receiver to one of
the video inputs of the DVR. If there are four wireless cameras connected
to the receiver (loop mode must be on) the DVR will record the four
cameras in a one by one sequence. It is then possible to review the
recorded files in sequence or expand the picture to full screen using
the DVR buttons.
2. Multiple channel recording: example, connect four wireless receivers
(each receiver having a different frequency camera) into the DVR’s
four video inputs. All four cameras can then be recorded simultaneously
and it is possible to review the files as a single camera display
or as a quad display.
Q: What's the difference between a wired camera and a wireless
camera?
A: A wired camera needs a cable that goes from the camera to a TV,
VCR or DVR. The video signal is passed from the camera, through the
cable, and to your TV, VCR or DVR which allows you to see the picture.
All wired cameras must use RCA/BNC cable to connect the camera to
the TV, VCR or DVR. For example, a clock radio hidden camera will
plug into the wall just like a normal clock radio. The camera transmitter
hidden inside the radio is powered by the clock radio's power supply,
which requires plugging the AC cord. Another example, a smoke detector
hidden camera will have to have an external power source, so the AC
cord needs to be transferred through a wall or ceiling in order to
power the smoke detector camera.
A wireless camera does not need an RCA/BNC cable connected from the
camera to the TV, VCR or DVR. That is the main advantage, without
spending for any extra expensive wiring. The video signal is transmitted
through the air to the receiver directly. However, wireless cameras
still require power. So, either a power adapter or batteries must
be used.
Q: What exactly does wireless mean?
A: Wireless means there is no video cable running from the wireless
camera to your TV, VCR, or DVR. For outside applications, wireless
means no wires stretched across your home between the wireless hidden
camera and the receiver. All wireless cameras still require a power
source regardless of whether it is an indoor camera or an outdoor
wireless camera. A wireless receiver must always accompany a wireless
camera. Also, a receiver must connect to your TV, VCR or DVR with
A/V cables and requires a power source too. Thus, a wireless camera
only eliminates any wires stretched across a room or outdoor location
to a house.
Q: Can I use a 1.2GHz wireless camera, instead of a 2.4GHz camera,
to avoid interference with my home Wi-Fi network or 2.4GHz cordless
phone?
A: Yes, you can use a 1.2GHz wireless camera in other countries, but
not in the USA and Canada, as it is restricted by the FCC.
Q: Does a wireless camera still need a power adapter?
A: Yes it does. A camera wireless camera would not be operable without
some source of power to it. This source of power can come from either
the AC outlet (using the adapter) or from a 9 volt battery.
Q: Is there anyway to extend the distance of video transmission
for the wireless camera?
A: No, due to FCC limitations on transmission power. It is possible
to use a high powered booster (i.e. 1 watt, 5 watt, etc..) to extend
the viewing range of the wireless camera system. Using a power booster
for these purposes is illegal in the U.S.A. and restricted by the
FCC.
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