Appendix B. RF Test Cases of the TC-3000C
227
preamble bit. The calculation starts at the centre of the first preamble bit until the centre of
the first bit following the 4
th
preamble bit. The DUT's carrier frequency is assumed to be
the result of this integration and is named f
0
.
6. Steps 5 and 6 id repeated for required number of packets (see the Number of packets
parameter). Maximum and minimum values of the f
0
are recorded as f0_max, f0_min.
7. Steps 5 and 6 are repeated for each TX frequency channels of the DUT (see the BT
channels parameter).
Test Results
f0_max is the maximum value of the initial carrier frequency deviation, measured in KHz.
f0_min is the minimum value of the initial carrier frequency deviation, measured in KHz.
To reach a verdict the test results are compared with the limit parameters:
“Up.lim.of init.car.freq.deviation” (in KHz)
“Up.lim.of init.car.freq.deviation” (in KHz)
To change the parameters, use the Edit menu of the test case. If the flag “Use Default” is
selected then all of displayed values of parameters are ignored and the values according to RF
Test Specification [1] are assigned automatically.
Requirement to Initial Condition of a DUT
If the DUT can be controlled through HCI, the DUT must be connected to an appropriate HCI
port of the tester and correct value of the HCI Port parameter must be specified in DUT
configuration (Menu Configuration DUT More1/5 HCIPort).
If the DUT does not have HCI then the DUT must be in the Inquiry Scan/Page Scan state
(maximum activity of the scan mode is desirable) and Test Mode must be enabled.
5.2.9 Carrier Frequency Drift (TRM/CA/09/C)
Goal
Verification of the transmitter centre frequency drift within a packet
Parameters
1. Test mode: Transmitter test, Loop back.
Note. The test case cannot be executed in Null packets Test mode.
2. BT channels are the TX frequency channels of the DUT, which are selected to test. The
frequency for each channel is calculated as (2402+ch) MHz, where ch is the frequency
channel. The frequency channel is the value from 0 to 78. Any quantity of the frequency
channels can be selected in the TC-3000C. The list of selected channels must be
separated by “-“. For instance, the record “0-20-40-60” means that the test case must be
executed for four frequency channels: 0, 20, 40 and 60, that is for the frequencies
2402MHz, 2422MHz, 2442MHz and 2462MHz.
3. Packet type parameter specifies which packet type will be used for the test case. If the
parameter is equal to ‘longest’ then the tester will read LMP features of the DUT and the
longest supported packet will be chosen for the test case.
4. Number of packets parameter specifies how many packets will be used to measure
carrier frequency drift characteristics.
5. Hopping mode parameter specifies which hopping sequence will be used for the test.
Allowed values of the parameter are:
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