HP Cell Phone Accessories 8935 Manual De Usuario
24
Chapter 1
Getting Started with AMPS Test
Display an FM Carrier Signal (Loopback Test)
Get Started with the Test Set
Here are some guides for selecting screens and fields:
Use the knob to move the cursor around the screen. Reverse video boxes
indicate fields that can be selected.
indicate fields that can be selected.
To select a field on the screen, push the knob, or press the
Enter
key.
Use the
RF Gen
,
RF Anl
, and
Spec Anl
keys to access the RF GENERATOR,
RF ANALYZER, and SPEC ANL screens.
Selecting the titlebar at the top of the screen displays a list of screens
that can be immediately accessed when selected.
that can be immediately accessed when selected.
Preparing the Test Set
1. Plug in the Test Set.
2. Turn on the Test Set (or press
Preset
if it is already on). The CDMA
ANALYZER screen will be displayed.
3. Press the
Inst Config
key.
4. Select
RF Display
, and set the field to
Freq
.
5. Verify your connections.
Generate an FM Carrier Signal
Refer to
.
1. Press
CDMA Gen
to go to the CDMA GENERATOR screen.
2. Select
CW RF Path
and set it to
Bypass
. This shuts off the IQ
modulation normally used for CDMA testing.
3. Press the
RF Gen
key to go to the RF GENERATOR screen.
4. Select
RF Gen Freq
and use the keypad to set the frequency to
850.000 MHz.
5. Select
Amplitude
and set the amplitude to 0 dBm.
6. Select
Output Port
and verify that the port is set to
Dupl
.
7. Turn on FM modulation by positioning the cursor in the lower half of
the
AFGen1 To
field and pressing the
On/Off
key.
The default FM deviation is 2.9 kHz. The default FM rate is
1.0 kHz.
1.0 kHz.
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