IMPACT MK3 Hand Held UHF Paging Transmitter
HHTXMK3
Issue
1
4
System Overview
The Scope IMPACT MK3 is a portable UHF transmitter used to signal various types of
emergency alert to both fixed base station equipment and portable receivers.
Applications include straightforward security/panic alarm by simple button press; “lone
worker” and “man down” alerter , where a motion sensor is utilised to signal a pre-
programmed level of inactivity; and “snatch” alarm, whereby a lanyard is attached
between the wearer and the IMPACT, removal of which will trigger a continuous alarm.
Modes of operation are selectable using two top plate buttons and a display, which also
indicates battery charge and alarm status.
The IMPACT is provided with an intelligent “fast” charger, facilitating full charge of the
nickel metal hydride cells in less than 1 hour (typically 40 minutes), together with an ac
adaptor, leather carry case for the IMPACT and lanyard “snatch” pin.
Package Contents:
Scope IMPACT transmitter unit, with stud mounted aerial (fitted)
Leather carry case
AC Adaptor (output: 5V dc @ 2A)
Desktop Charger base unit
Lanyard snatch pin
Programming shoe with integral lead (optional)
Programming application disk (optional)
Getting Started
Remove the components from their packaging and check that all items are present.
Locate the AC adaptor and insert the power jack into the socket at the rear of the
charger base unit. Fit the mains lead supplied between the adaptor and a 230V mains
outlet. The green power light on the charger base should now be lit and the red status
light should be off.
Switch on the IMPACT by pressing and holding the uppermost blue side button together
with the uppermost scroll button. The display will show the current mode number setting
and a “sign on” transmission will be sent, which may be received by suitably configured
pagers or fixed receivers. Now place the IMPACT into the charger base, checking that
the silver contacts on the side of the unit face the same way as the silver contacts in the
charger base. A “sign off” transmission will be sent, after which the unit’s normal
operating functions will be disabled and the unit will lock into charging mode.
The display on the top face of the IMPACT will light and the words “FAST CHRG” will
be displayed. “FAST” will flash on/off and the battery icon will pulse, indicating that rapid
charging is in progress. The red light on the charger base will flash during the charging
process.
