Tektronix CMD 80, User Manual

Page: 248 / 672

TDMA: Manual Test
CMD 80 Digital Radiocommunication Tester User Manual
3–179
When you press a CALL TO MOBILE softkey and establish a call, the tester
displays either a CALL ESTABLISHED (VOICE LOOPBACK) menu or a
CALL ESTABLISHED (MS TESTS) menu, depending on which CALL TO
MOBILE softkey you pressed. Each of these menus is discussed in the follow-
ing text.
CALL ESTABLISHED (VOICE LOOPBACK).
When you press the CALL TO
MOBILE softkey for VOICE LOOPBACK (or initiate a call from the mobile
station) and establish a call, the tester displays the menu shown in Figure 3–139.
The information box located in the upper right corner of most menus displays the
selected network, system, and standard. When a call is established, it also
displays the data rate and slot. Figure 3–132 on page 3–168 shows a sample
display.
Information box
Figure 3–139: TDMA call established (voice loopback) menu
The following softkeys are available in the CALL ESTABLISHED (VOICE
LOOPBACK menu:
H
ADDITIONAL MEASUREMENT. Press this softkey to take conventional
measurements, such as measuring the voltage across the battery terminals of
the mobile station. For more information, refer to Additional Measurements
on page 3–255.
H
HANDOFFS/TRANSITIONS. Press this softkey to handoff the established
call to another network, system, and/or standard, or to make a transition to
the Voice Loopback or MS Tests mode. For more information, refer to
HANDOFF/TRANSITIONS on page 3–211.
Call Established