Tektronix CMD 80, User Manual

Page: 132 / 672

Analog: Manual Test (Signaling)
CMD 80 Digital Radiocommunication Tester User Manual
3–65
H
VOICE CHANNEL. The voice channel is the channel over which voice
communications occur. Press the VOICE CHANNEL softkey to select a
voice channel.
NOTE
. Only even numbered channels are allowed for the JTACS standard.
H
SAT COLOR CODE. The supervisory audio tones (SAT) are out-of-voice
band audio tones used for signaling. There are three assigned frequencies of
5970 Hz, 6000 Hz, and 6030 Hz with corresponding supervisory color codes
(SCC) of SCC 0, SCC 1, and SCC 2, respectively. Press the SAT COLOR
CODE softkey to select the SAT color code that you want.
H
RELEASE CALL. Press the RELEASE CALL softkey to simulate termina-
tion of the call by the base station. You can also release the call at the mobile
station by hanging up the mobile station (press END on the mobile station).
NOTE
. If you selected NAMPS as the standard, the VOICE CHAN DESIGNATOR
softkey is added to the menu and the DSAT COLOR CODE softkey replaces the
SAT COLOR CODE softkey.
The following menu softkeys are unique to this menu if NAMPS is the selected
standard. See the figure below.
H
VOICE CHAN DESIGNATOR. Press the VOICE CHAN DESIGNATOR
softkey to select the designator you want; 10kHz ABOVE, CENTER, or
10kHz BELOW. CENTER is the default.
H
DSAT COLOR CODE softkey. Press the DSAT COLOR CODE softkey to
select the desired DSCC (0 through 6) and its associated sequence.
NOTE
. If you selected NTACS as the standard, the tester displays the DSAT
COLOR CODE softkey as discussed previously. However, the VOICE CHAN
DESIGNATOR softkey is not displayed.
CALL ESTABLISHED (MS TESTS).
When you press the CALL TO MOBILE
softkey for MS tests and establish a call, a menu similar to Figure 3–42 is
displayed. Variations in this menu for the NAMPS standard are shown in
Figure 3–43 on page 3–67; variations in this menu for the NTACS standard are