12
Appendix B: Frequently Asked Questions
Signal Reduction Through Materials
Signal strength decreases as it passes through different types of material. The table below
shows how signals become reduced when passing through different materials:
Material
Signal Reduction (%)
Plaster & Wood
10 - 30%
Brick
30 - 50%
Concrete Cinder Blocks
50 - 70%
Metal & Metal Cladding
70 - 90%
NOTE:
Signals that must pass through wet or moist materials
(e.g. shrubs and trees) may be significantly reduced.
The stronger the signal strength, the higher the video frame rate. The lower the signal
strength, the lower the video frame rate.
Full signal strength
(high frame rate)
Low signal strength
(low frame rate)
9.4 Are digital wireless camera signals secure?
Yes. Lorex digital wireless products feature a wireless transmission method called
Frequency Hopping Spread Spectrum (FHSS). This type of signal is highly resistant to
eavesdropping as it generates a channel hopping sequence using an algorithm generated
by the receiver, which only the camera can follow through the "pairing" function.
Pairing is an electronic handshake between digital wireless devices. Digital wireless
cameras can only be paired to one receiver. This is to prevent interception by third parties,
and prevents any other device from picking up the signal—this also means that you cannot
pair one camera to multiple receivers.
9.5 How many frames per second should I expect from a digital
wireless camera?
Current Lorex digital wireless cameras offer 10 - 30 FPS (Frames Per Second)
performance. Actual frame rate depends mainly on signal strength (see the chart in
section above).
For details on supported resolutions and frame rates for this model, see “Appendix A:
System Specifications” on page
10.
9.6 How many wireless cameras can I install?
It is recommended to install a maximum of 4
wireless cameras per system (4 receivers and
4 cameras). Minimum space between receivers should be 4 inches / 10cm and minimum
space between cameras should be 6.5ft / 2m to minimize potential signal strength
degradation.
Summary of Contents for Vantage LW2231
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