Aastra 400 Series - Measuring Procedure

Planning
45
Planning Aastra 400 DECT systems as of R1.0
syd-0457/1.0 – R1.0 – 10.2012
5. 3. 3. 2 Measuring procedure
The following sequence is an example of a possible measuring procedure: Depend-
ing on the situation and aim of the measurement, a different procedure may be
used. We shall be looking here at a measurement procedure using 2 test radio
units.
Typical Sequence of a Measurement Procedure
• Mount the two test radio units on the first or second position according to the
plan and supply power using plug-in power supply or battery box.
• Activate the ”Look Around Mode” on one test phone, switch to test system ”T”,
and begin measuring the first radio unit.
• Measure out the planned coverage area of the first test radio unit and enter the
measured values at the key points (critical areas, most distant points, overlap
zones, etc.) on the plan. If the measured values are not satisfactory, find a better
location for the test radio unit and re-measure the same coverage area. The
measured values entered on the plan must always also contain a reference to
the location of the measured test radio units. Only in this way can measurement
series be compared to each other and the best possible location be determined
for the test radio units.
• Switch over to the second test radio unit and measure out its coverage area as
described above.
• A value of at least 40 shall be measurable in the overlap area of the two test ra-
dio units.
• Check the connection quality at the critical points with a loopback connection.
• Once the coverage range of the two radio units has been measured out, the ra-
dio units are repositioned. It may also make sense to measure out only part of
the coverage range and then to shift only one of the two radio units.
Tip:
If two people are involved in the measurement, it is advisable to maintain
a continuous call connection. The use of headsets allows the connection
quality to be monitored both visually and acoustically at the same time,
and also allows the personnel involved in the measurement to communi-
cate with one another. If a person is located at the test radio unit, the opti-
mum location for the radio unit in terms of connection technology can
easily be determined.