User Manual

RF Explorer User Manual page 29
In addition to RF power, you should reduce the likelihood of static discharge over the antenna. In particular,
the naked metallic antennas such as the Nagoya telescopic antenna we include in the wideband models. The
whip helical plastic antennas included in the narrow band models do not expose the internal contact to the
outside world and thus are safer from ESD
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perspective because don't offer a direct current path to the
internal sensitive CMOS component pin, but all metallic antennas needs you to observe good ESD practices,
most importantly in very dry winter air: Make sure you have a good hand contact with the metal case of the
RF Explorer before touching the antenna and, whenever possible, do not touch the antenna with your hands.
For this very same reason, you should never make contact with the antenna to any external energy source.
Just imagine what power can be injected inside if you make the antenna contact to AC current or a powerful
AC source of any kind!
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http://en.wikipedia.org/wiki/Electrostatic_sensitive_device