User Manual

DataPage Lite (USA, ECO) Desktop UHF Radio Paging System
DPUSALITEECO 6 Issue 1
Fig. 1 Connecting the antenna and locking cover
Group Calls
As previously stated, this system will accept pager identities from number 1 through 9,999. Most pagers will
accept a minimum of two identities, enabling the pager to respond to selected group calls as well as its own
unique identity. Advanced pagers offer multiple identities, again, enabling one to be reserved for its own unique
identity and then for the pager to belong to a selected number of groups of pagers which can be called
collectively by entering just one identity or number. Sometimes the requirement is to have a global call and
upon the entry of this specific number the system will call all pagers at one time. As group calls are created
from single pager identities, any number of groups can be constructed to suit individual customers’
requirements.
Over the Air Pager Switch Off
When used with pre-configured pagers, this feature allows all the pagers to be switched off over the air with a
single command entered from the keypad. To initiate the pager shutdown sequence, key in ]12345 then press
ENTER. All pagers on the system will then switch off. Pagers can be switched back on in the normal manner.
Performance
The system will normally cover 95% of all range requirements with the use of just the internal antenna. The
helical quarter wave antenna supplied with the system can provide ranges of up to half a mile free space and
will normally cover industrial buildings of considerable size. This short helical wound antenna can be replaced
with a straight quarter wave which can provide ranges in excess of one mile in free space and considerably
enhance the units performance in industrial or commercial environments. Position the unit on the opposite end
of the desk to computers, telephones and intercoms etc. to minimize the potential for cross interference.
Also, remember that the capability of your system will be affected by:-
Foil backed wallboard, metal mesh, wire reinforced glass, metal sheeting, large mirrors, suspended ceilings, lift
shafts etc. These can all reflect and thereby reduce the signaling capability of the transmitter. A little forethought
prior to installation, coupled with a few tests, can normally avoid most of these problems.
Other Aerials
The range and performance of this equipment can be improved by the addition of more efficient aerials*. These
can be installed either inside or outside the building and are connected to the transmitter with 50 ohm coaxial
cable. An amplifier is also available for very large sites*. Consult your dealer for further details.
A glass mount is available to install on the inside of a suitable window which can boost range, especially if its
required in one direction from the building.
The center fed half wave dipole measuring approximately 300 mm from tip to tip, will provide excellent all round
local signaling. This can be mounted either inside or outside the building and is available in either a light weight
or heavy duty stainless steel design.
*Subject to license conditions.
Collinear aerials are also available for external application and will, when elevated, boost overall range with a
slight loss to some local signals.