User 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 /Digital ground connection.
13� Remote PTT: This provides a remote alternative to
transmit Secure Wireless Microphone audio via the host
mobile radio. You may choose to connect to a mo-
torbike 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 Secure Wireless Microphones users audio. In such
remote monitoring cases, use of the remote PTT input
causes the sensitivity of the Secure Wireless Microphone
to be greatly increased, so a control room operator
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.
Alternate Congurations
Some alternate congurations are available by internal
jumpering of the mobile charger unit. These are pro-
vided to 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 from
the mobile charger. Next remove the 4 case screws to
access internal PCB. Take extreme care when handling
the PCB to prevent damage by electrostatic discharge
(ESD) or to internal wiring. Re-assemble carefully re-
membering to re-insert the belt clip securing spring
.
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