GSM/GPRS/EDGE SIGNAL ANALYZER
52
JD7105B Base Station Analyzer
EXT REF CLOCK INTERFACE SPECIFICATION
Port Name
Signal
Characteristics
Even Sec Trigger In
PP2S 10 msec
TTL compatible
Ext Ref In
10 MHz
Analog: -10 to +10 dBm
Measurement Procedure
Step
Description
1.
Connect the cable
Connect the cable to the
Spectrum Analyzer RF In 50
Ω
port of the JD7105B and the RF Output port of BTS.
2.
Set the measurement mode
MODE
[Signal Analyzer]
[GSM]
[Constellation]
Press the
MODE
hard key.
Press the soft key to select the Signal Analyzer mode.
Press the
GSM
soft key.
Press the
Constellation
soft key.
3.
Set the measurement parameters
MEASURE SETUP
[Detect Mode]
<Auto>
,
<GSM>
, or
<EDGE>
[Delay]
Enter a value
[uSec]
or
ENTER
[RX Filter]
[No Filter]
,
[100K]
,
[200K]
,
[400K (Default)]
, or
[624K]
[PSK DC Remove]
<On>
or
<Off>
[PSK Constellation]
<On>
or
<Off>
Press the
MEASURE SETUP
hard key.
Press the
Detect Mode
soft key to select the mode.
Press the
Delay
soft key to set the delay.
Use the numeric keys to input value.
Press the unit soft key or the
ENTER
hard key.
Press the
RX
Filter
soft key to select the internal RX filter
bandwidth among the choices.
Press the
PSK DC Remove
soft key. Toggle between
On
and
Off
.
Press the
PSK Constellation
soft key. Toggle between
On
and
Off
.
GSM Constellation Measurement Procedure
MEASURE SETUP
DETECT MODE:
Selects the signal standard of GSM or EDGE. Default setting is Auto.
DELAY:
Sets the delay in micro seconds. Use the numeric keys to input value and press the unit
soft key to complete the input.
RX FILTER:
Sets the internal RX filter bandwidth among
100K
,
200K
,
400K
, and
624K
. Default
setting is 400K.
