User's Manual
Alternatively, it could be driven by the radio’s unsquelch
command that factors in reception of required correct
CTCSS tones, etc. Internal jumpering caters for active
low or high inputs.
9� Ground: DC ground connection.
13� Remote PTT: This provides a remote alternative to
transmit Wireless Speaker Microphone audio via the
host mobile radio. You may choose to connect to a
motorbike handle bar PTT, a hidden palm or footswitch,
a wireless PTT device, or even to an output from the host
mobile equipped to provide remote radio monitoring of
the Wireless Speaker Microphones users audio. In such
remote monitoring cases, use of the remote PTT input
causes the sensitivity of the Wireless Speaker Micro-
phone to be greatly increased, so a control room oper-
ator can more easily monitor the health or safety of the
user. There is no increased audio gain when a headset
is connected to the base of the Wireless Microphone.
15� Ground: Additional DC ground connection.
Alternate Congurations
Some alternate congurations are available by in-
ternal jumpering of the mobile charger unit. These
are provided to typically allow compatibility with
different mobile radio types.
Re-conguration of these jumpers should only be
undertaken by qualied radio service personnel.
To access, rst remove the rear mounting plate. Next
remove the 4 screws to access internal PCB. Take ex-
treme care when handling the PCB to prevent damage
by electrostatic discharge (ESD) or to internal wiring.
Re-assemble carefully remembering to re-insert the belt
clip securing spring
.
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