Appendix B. RF Test Cases of the TC-3000C
228
1 - single frequency (hopping is off)
79 - hopping is on
If the flag “Use Default” is selected then all of displayed values of parameters are ignored and
the listed above values will be assigned automatically:
Test/Normal mode: Transmitter
BT channels: 0-39-78
Packet type: longest
Number of packets: 10
Hopping mode: 79 (hopping is on)
Note. If all of parameters of the test case will be matched with the parameters of the
Modulation Characteristics (TRM/CA/07/C) test case, then both of test cases will be executed
simultaneously. It will reduce the measurement time.
Additional test conditions
Whitening is disabled and the payload’s bit pattern is 10101010.
Test Procedure
1. If the DUT is not connected then the tester creates connection via access procedures
(paging and inquiry if necessary).
2. The tester will activate test mode (if the test mode is not activated yet) and will set all
necessary parameters of the test mode depending on the Test Mode, Packet type and
Hopping mode parameters.
3. The tester checks whether the DUT transmits at maximum power. If not and the DUT
supports power control, then the tester will consecutively send LMP_incr_power_req
requests until the LMP_max_power response would be received from the DUT. The time
delay between two consequential LMP_incr_power_req requests depends on the
Pow.SetTime parameter (To modify the value use: Menu Configuration DUT
More3/5 Pow.SetTime, default value is equal to 1 second).
4. The DUT is set to transmit the 10101010 bit pattern as payload on the given frequency
channel.
5. Tester measures demodulation characteristics. Each bit is over sampled 10 times for one-
slot packets and 8 times for 3,5-slot packets. The tester makes an integration of the
packets' 4 preamble bits and the first bit after 4
th
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
.
Tester integrates frequency deviations for every 10 bit symbols in the payload body. The
calculation starts from the 2
nd
payload bit. The results are recorded as f
k
.
6. Step 5 and 6 id repeated for required number of packets (see the Number of packets
parameter). Tester records the maximum frequency drift as f_drift_max = max(abs(f
k
-f
0
))
and the maximum drift rate as drift_rate_max = max(abs(f
k+5
-f
k
)).
7. Steps 4 to 6 are repeated for each TX frequency channels of the DUT (see the BT
channels parameter).
Test Results
f_drift_max is the maximum frequency drift, measured in KHz
drift_rate_max is the maximum drift rate, measured in KHz/50us.
To reach a verdict the test results are compared with the limit parameters:
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