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Clear-Com HME DX210 Operating Instructions
Operation in Severe Environments
During normal operation, the fact that the system is constantly changing the channel list in use is
transparent to the user. It is possible, however, that in an environment with severe interference that the
system may experience a slight degradation. In the AFH mode, the Clear-Com system will use a
minimum of 15 channels. If the environment is very crowded and less than 15 channels are truly
available, there could be increased radio ‘packet loss’ due to the high interference. The following
symptoms may be observed with AFH systems in a highly congested radio environment:
This may result in system ‘busy’ indications. Channel lists are updated every few seconds, and
in a severe environment it is possible that these lists get missed by the communicator.
Slight degradation in audio fidelity between the headsets and base station. This would be due to
the same symptom as the ‘busy’ indications. The HD audio processing is tolerant to this
condition, which is why the degradation may only be slight.
Longer times to register. Registration may take longer, since the headset has to acquire the
channel list from the base station. If the base station has excluded a lot of channels, this takes
longer as the communicator does not have the exclusion list and looks for the base on channels
it is not using.
Initial sync time increase. For the same reason registration may take longer, the initial headset
sync on power up may take longer.
Required AFH Equipment
In order to utilize AFH, the base station must be set to European mode. The headsets and belt packs
must also be AFH capable. AFH capable headsets and belt packs will have the letters ‘AFH’ labeled on
the belt pack and headsets. AFH communicators will auto detect if the system is in AFH mode and
adjust their operation accordingly.
Non-AFH Equipment
Headsets and belt packs that are not AFH capable must be operated with either a non-AFH base station
or an AFH base station selected to operate in All, High or Low band mode. Headsets and belt packs that
are not AFH capable wi
ll not have the letters ‘AFH’.
AFH Model Chart
Model #
AFH Part #
Non AFH Part #
Comments
BP200
G29663-2B10
G26705-XXX
All BP200 Beltpacks with G26705-XXX
part #'s are non AFH compatible.
BP210
G29663-2B10
G28703-XXX
All BP210 Beltpacks with G28703-XXX
part #'s are non AFH compatible.
WH210
G28741-XXX
All WH210's are non AFH and will not
work with Base in AFH mode.
WH200
G27593-XXX
All WH200's are non AFH and will not
work with Base in AFH mode.
WH220
G29090-8D13
ALL WH220's are AFH compatible.
Part number is located on label under the battery on beltpacks and wireless headsets
