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Highlighted sections are color-coded areas that indicate problem areas with a circuit. Red denotes an issue
with that section, and the comments section provides information as to what could be the cause (i.e.: AM or
AM-like noise will likely have “possible cable grounding fault” in the comments)
5.4 Inssider Office
InSSIDer is an Wi-Fi analyzer provides information on all networks in the proximity of the client modem,
including signal strength in dBm (some tools refer to this as RSSI), channel, security, MAC address of each
access point and multiple graphs to display information.
InSSIDer also calculates a
Link Score
(designed for use with a Wi-Spy device) based on information such as
channel overlap and signal strength for each wireless network. You can see how tweaking channel settings or
even relocating an access point or router influences the score.
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Wireless speed expectations in their homes
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Large homes might require one (or more) Wireless Extenders
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Possible sources of Interference
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More on slide 7
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Bandwidth usage and the subsequent effect on wireless speeds
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Internal network usage (including TTV) can impact internet speeds wireless and wired
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Variance of wireless performance on different devices
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Age/type of devices can have a huge impact on download speeds and network utilization
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5GHz networks are not even visible to older devices like the iPhone 4S – testing
must be done with the technician laptop
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Typical rule of thumb is that newer = better, and that larger devices have more
consistent speeds over Wi-Fi due to a larger wireless antenna
2.4 GHz has three non-overlapping channels to work with, while 5 GHz
has twenty four. In high-density MDU environments it is very important to look at the severity of congestion
on the 2.4GHz frequency and run a speed test (
) to verify quality service.
Lower frequencies travel through materials much better than high frequencies which is why 2.4GHz networks
have a greater effective range than 5GHz. Think of a neighbor playing loud music; all you hear is the lower
frequencies (bass) and not the high frequencies that are absorbed by building materials.
Why Channel 1, 6 or 11?
Customers spend good money for high speed internet, yet they can’t get the speeds the expect. Why are they
experiencing slow Wi-Fi data rates? Selecting the proper Wi-Fi channel can significantly improve your Wi-Fi
coverage and performance.
In the 2.4 GHz band, 1, 6 and 11 are the only non-overlapping channels. Selecting one or more of these
channels is an important part of setting up your network correctly. Currently, many wireless routers
