Tektronix CMD 80, User Manual

Page: 244 / 672

TDMA: Manual Test
CMD 80 Digital Radiocommunication Tester User Manual
3–175
NOTE . If you do not press one of the CALL TO MOBILE softkeys listed below,
the tester will register the mobile station and proceed to the MS Registered
(DCCH camping) state. Refer to MS Registered State on page 3–175.
From the MS UNREGISTERED menu, the CALL TO MOBILE softkeys listed
below will only work if the MOBILE ID field is properly set.
To establish a TDMA mode call, the CALL TYPE must be set to Digital.
H
CALL TO MOBILE (VOICE LOOPBACK). Press this softkey to establish a
voice loopback call. When the call is established, the tester displays the
CALL ESTABLISHED (VOICE LOOPBACK) menu. In this mode, a
message spoken into the mobile station is returned in approximately 2
seconds. This allows you to test the voice quality of the call.
For detailed
information about voice loopback, refer to CALL ESTABLISHED (VOICE
LOOPBACK) on page 3–179.
H
CALL TO MOBILE (MS TESTS). Press this softkey to initiate an MS tests
call. When the call is established, the tester displays the CALL ESTAB-
LISHED (MS TESTS) menu. For detailed information about MS tests, refer
to CALL ESTABLISHED (MS TESTS) on page 3–180.
Once the mobile station is powered on and registered, the tester enters the MS
Registered (DCCH camping) state and displays the menu shown in Fig-
ure 3–137.
Figure 3–137: TDMA manual test — MS registered menu
MS Registered State