– 14 –
SECTION 2
TEST PROCEDURES
SINAD Measurements
26.
Make sure the voice channel on which you wish to
measure the SINAD is being used currently.
27.
Pressing the “RX TEST” key in the "ANALOG SCRNS”
area of the front panel of the HP8924C/E changes the
display to the “RX TEST” screen. The call will remain
intact. See Figure 4.
28.
The “RX TEST” screen is already set up to calculate
SINAD measurements. The “AF Anl In” setting in the
“AF ANALYZER” screen is switched automatically
from “FM Demod” to “Audio In”.
29.
Select the “AFGen 1 Freq” field and change the setting
to “1.0 kHz,” if it is not set to that frequency already.
30.
Select the “AFGen 1 To” field and change the FM
deviation to “8.0 kHz,” if it is not already set to that
deviation. Set the Audio Break-Out Box “EXT Audio”
switch to the “On” position.
31.
Select the “Amplitude” field and change the received
power level to the level at which you wish to measure
the SINAD. Remember to consider the signal loss
through the Test Jig and cables.
32.
Measure the SINAD and make sure it is at least
12 dB.
33.
To make SINAD measurements at other received power
levels on the same channel, repeat steps 31 and 32.
34.
To make SINAD measurements on other voice channels,
press the “ SHIFT” + “ R F ANL” keys in the “ANALOG
SCRNS” area of the front panel of the HP8924C/E. This
action results in a return to the “CALL CONTROL”
screen. Change the voice channel as described in the
“Handoffs” section (steps 23 and 24). Repeat steps 27
through 32 to calculate SINAD measurements on the
new voice channel.
SAT Measurements
35.
Press the “AF ANALYZER” key. The call will remain
intact. See Figure 5.
36.
Make sure the “AF Anl In” field is set to “Audio In.”
Change it if it is not.
37.
Mute the handset’s microphone audio by depressing
and holding the Handset’s “Jog Dial” (LCD will flash
“Mute” in place of “Time”).
38.
You should see the SAT signal displayed on the screen,
as well as its deviation; set “De-Emphasis” to “OFF”
and the “Detector” to “RMS*SQRT2”.
39.
To return to the “CALL CONTROL” screen, press the
“SHIFT” + “RF ANL” keys in the “ANALOG SCRNS”
area on the front panel of the HP8924C.
40.
If you plan to conduct further tests, deselect mute on the
microphone audio by depressing and holding the “JOG
DIAL” of the handset.
Ending the Tests
41.
Press the “END” key on the Handset to terminate
the call.
42.
Press the “Power” key to turn off the Handset.
Performing Digital Measurements
CM-Mx300 Only
Getting Started
1.
Turn on the Hewlett Packard HP8924C/E Radio Test Set
and wait for it to go through its initialization routine.
2.
Since the HP8924C/E powers up into the Digital CDMA
test mode, there are no test selection keys to press.
However, if you were testing in the Analog AMPS mode
and wanted to switch to the Digital CDMA mode, press
the “CALL CTRL” key in the “CDMA SCRNS” area of
the front panel.
3.
The “CDMA CALL CONTROL” screen will appear
indicating that you are in Digital CDMA test mode.
4.
Select the “RF Channel” field and change the setting to
the Handset’s active NAM, “PRIMARY CHANNEL
SYSTEM A or B” value. See “Service Programming
Sony’s CM-Mx300 Handset” for more information.
5.
In the “To Screen” area of the “CDMA CALL
CONTROL” screen, select the “CDMA” field and
change the seeing to “CELL CONFI.” The HP8924C/E
display will change to the “CDMA CELL SITE
CONFIGURATION” screen.
6.
Select the “Network ID” field and change the setting to
the Handset’s active NAM, “MOBILE NETWORK
CODE” value. See “Service Programming Sony’s CM-
Mx300 Handset” for more information.
7.
Select the “System ID” field and change the setting to
the Handset’s active NAM, “HOME SYSTEM ID” value.
Press the “CDMA CALL CONTROL” key.
8.
Select the “MS ID” field and change the setting to
“Phone Num.” Enter in the Handset’s active NAM,
“PHONE NUMBER” value. Press the “SHIFT + TESTS”
keys to enter the “CONFIG“ screen.
9.
Select the “RF Level Offset“ field and turn to “ON”.
Select the “RF IN/OUT” field and enter loss. Make sure
that the “RF Input and Output Ports” are set to “RF IN
and RF Out”.
10.
Press the “CDMA CALL CONTROL” key to return to
the call control screen. Select the “Traffic Data Mode”
field and change the seeing to “Svc Opt 1”. This sets up
a delayed return loop allowing you to hear yourself talk
into the Handset.
11.
Select the “Sector A Power” field and change the setting
to -50 dBm to ensure a strong test signal.
Summary of Contents for CM-Bx200
Page 50: ... 28 ...