Specifications

Chapter 6 161
Test Parameters
Parameter descriptions
47 CP System [0=GSM900, 1=DCS1800, 2=PCS1900,
3=E-GSM]
This parameter allows selection of the radio type being tested.
Default value Not applicable.
Supported
ARFCNs for each
band
The following ARFCNs are supported for each band:
• GSM: 1 to 124
• E-GSM: 975 to 1023 and 0 to 124
• DCS: 512 to 885
• PCS: 512 to 810
Testing in E-GSM
band
The following channels are available for E-GSM: 975 to 1023 (880.2 to
889.8 MHz) and 0 to 124 (890.0 to 914.8 MHz). There are therefore 173
ARFCNs available for E-GSM. To test mobiles in the most extreme
conditions, tests should be executed at the lowest and highest possible
frequencies. It is recommended that you perform the tests in E-GSM
mode at the following three ARFCNs: 975, 38 and 124. These are the
channels that are used if frequency hopping (parameter number 14 set
to 1) and E-GSM (parameter number 47) are enabled.
Without frequency hopping, the parameters for the start, step, stop
channels (26, 27, 28 and 33, 34, 35 and 37, 38, 38) should be set
manually to suitable values, for example (other values are also
possible): Start=975, Step=87, Stop=124. In this case the tests will also
use the ARFCNs 975, 38, and 124.
The numbering scheme follows the physical frequencies from high to
low as the following example shows: Start=1020, Step=1, Stop=3. In
this case the test is executed at the following ARFCNs: 1020, 1021,
1022, 1023, 0, 1, 2, 3.
NOTE For testing in E-GSM it is recommended that you create a new
procedure with the relevant values configured.
Example If you want to test a GSM900 radio, select 0 in the value field.