User manual
IMPACT MK3 Hand Held UHF Paging Transmitter 
HHTXMK3  Issue 1 
  6 
Mode 1 Buttons A & B          (motion sensor & lanyard Off) 
Mode 2 Buttons A & B + lanyard        (motion sensor Off) 
Mode 3 Buttons A & B + motion sensor       (lanyard Off) 
Mode 4 Buttons A & B + lanyard + motion sensor  (preset countdown)* 
Mode 5 Buttons A & B + lanyard + motion sensor  (count down Short) 
Mode 6 Buttons A & B + lanyard + motion sensor  (count down Medium) 
Mode 7 Buttons A & B + lanyard + motion sensor  (count down Long) 
Mode 8 Buttons A & B + lanyard + motion sensor  (count down Short, sounder Off) 
*In this Mode, User Access is denied, so no other Modes will be available to the User. 
Where User Access is allowed, Modes 1, 2, 3, 5, 6, 7 & 8 will be available. 
Mode 1 – Manual Alarms Only 
The uppermost side-mounted blue button (A) will send a zone 1 alarm when pressed 
and held for a predefined period of time (set during programming). The lower side-
mounted blue button (B) sends a zone 2 alarm. Pressing both buttons together (A+B) 
and holding them for the trigger period will send a zone 3 alarm. 
Mode 2 – Manual Alarms and Lanyard Active 
The pin in the base of the unit is intended to be connected to a lanyard attached to the 
wearer. If the transmitter is pulled away from the wearer the pin will be released and an 
automatic Zone 4 alarm is immediately sent. This will continuously repeat for 500 
transmissions or until the pin is replaced. 
Mode 3 – Manual Alarms & Motion Sensor Active 
This mode enables blue buttons A & B and the motion sensor. The motion sensor “no 
movement” and warning countdown periods are preset using the programming 
application software. If you do not have the programming software, refer to your 
distributor for all configuration settings. If the unit detects no motion for the preset time, 
it will pulse a sounder for a further preset time as a warning before transmitting a Zone 
5 alarm. Any movement detected during these warning periods will reset the timers. 
The motion detector is most sensitive with the unit vertical and less sensitive as the unit 
is rotated to the horizontal plane. It is intended that the user should wear the unit on a 
belt or sash as near to vertical as possible (with the antenna facing upwards). 
Mode 4 Preset and Locked: all Alarms Active 
In this mode, all alarms are active and preset at the factory. Refer to your distributor for 
the preset configuration. The user is barred from accessing any other modes and does 
not have the ability to switch the unit off. 










