Tektronix CMD 80, User Manual

Page: 240 / 672

TDMA: Manual Test
CMD 80 Digital Radiocommunication Tester User Manual
3–171
Manual Test
The MANUAL TEST softkey selects the manual test measurements for the
system selected with the SYSTEM softkey in the home menu. This section
discusses the tests available with TDMA selected as the system.
NOTE
. The tester displays TDMA test menus only if you have Option B84 and
Option B82 installed and have selected the US CELLULAR or US PCS network
and TDMA system (refer to NETWORK on page 3–3).
Press MANUAL TEST to initiate a sequence composed of three states:
H
MS Unregistered State (initialization, control channel scanning and locking)
H
MS Registered State (DCCH camping)
H
Call Established (voice loopback or mobile station tests)
During each of these states various tests may be made. The states and related
tests are described in the following topics.
To perform mobile station tests, your mobile station must be connected to the
tester. Figure 3–134 shows the recommended connections. Other methods of
connecting are possible (refer to RF CONNECT/EXT ATTEN on page 1–16).
CMD 80
RF IN/RF OUT
Antenna
Figure 3–134: Mobile station to tester connection for testing