Manual

Table Of Contents
ANSI C63.17-2006
Methods of Measurement of the Electromagnetic and Operational Compatibility of UPCS Devices
Figure 12 —Example of duplex interference for FDMA frequency-duplexed system
The test procedure is as follows:
a) Adjust the path loss between the EUT and its companion device such that the received signal to
the EUT from the companion device is at least 40 dB above T
L
+ U
M
.
b) By using either frequency administration commands or out-of-operating-region interference
applied to the EUT, restrict the EUT and its companion device to operation at a single carrier f
1
for TDMA systems and on f
1
and f
2
and corresponding duplex carriers for FDMA systems. If
out-of-operating-region interference is used to confine the EUT to the intended carrier(s), use
the procedures of 7.2.3 to ensure that the out-of-operating-region interference does not corrupt
the test results. Verify that the EUT and its companion device can establish a connection on a
time and spectrum window on the intended carrier(s). Terminate the connection.
c) Apply interference at T
L
+ U
M
per carrier to the EUT on the enabled carrier(s) on all of its
receive time/spectrum windows except one, which has interference at least 10 dB below T
L
.
Apply interference at T
L
+ U
M
to the EUT on all transmit time/spectrum windows on the
enabled carrier(s). Ensure that the interference levels at the companion device are at least 10 dB
below T
L
for all time/spectrum windows.
d) Cause the EUT to attempt to establish a connection. If a connection is established, the test fails.
e) If a connection exists, terminate it. Apply interference at T
L
+ U
M
to the EUT on the enabled
carrier(s) on all of its transmit time/spectrum windows except one, which has interference at
least 10 dB below T
L
. Apply interference at T
L
+ U
M
to the EUT on all receive time/spectrum
windows on the enabled carrier(s). Ensure that the interference level at the companion device is
at least 10 dB below T
L
for all time/spectrum windows.
f) Cause the EUT to attempt to establish a connection. If a connection is established, the test fails.
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