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12. Frequent Asked Questions
155
AirLive AIRMAX5 User’s Manual
Answer
: Please make sure you have connected the PoE cable to the correct port on
the DC injector. Moreover, you should use an Ethernet cable with 4 twisted
pairs (CAT5 or better) for POE cable.
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Question
:
When I use an external antenna, how much distance can the AirMax5 reach?
Answer
: The distance of a wireless connection depends on many factors such as cable
loss and weather conditions. There is an online distance calculator at the
AirLive website. The distance calculated is not a guaranteed value; it is for
your reference only. If you agree with this limitation, please visit
http://www.airlive.com/support/wireless_distance_calculator.jsp
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Question
:
I tried the Emergency Upgrade procedure. But it doesn’t work, why?
Answer
: Please make sure the firmware file is renamed to “
zImage
”
without any file
extension
. The file name has to match exactly with the big capital “I”.
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Question
:
Why can’t I receive any signal from AirMax5’s built in antenna?
Answer
: The AirMax5’s built-in antenna is a patch antenna that send and receive
signal in the forward direction of the CPE with 30 degree angle vertically and
horizontally. Please see diagram below: