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JD700B Series User’s Guide
4
To turn on the through mode if you have not used a tap, toggle the
Thru
soft key and select
On
.
To turn it off, select
Off
.
5
Press the
OBSAI Parameters
soft key, and then do the following:
To specify Rx RP3 Type and RP3 Address of the received message for link rates
768 Mbps
,
1536 Mbps
, and
3072 Mbps
, complete the following steps:
Select
More (1/2) >
Rx Address List
.
The Rx Address List box appears. JD700B series lists all Rx messages detected by the
instrument with RP3 Address and RP3 Type values.
From the list, select the message to monitor.
Tap the
Apply
button.
The instrument automatically sets the RP3 Address and RP3 Type with the selected
values.
NOTE
You can also manually specify the RP3 Address and RP3 Type for the received message
using the
Rx RP3 Type
and
Rx RP3 Address
soft keys.
If you have selected a WCDMA/FDD message, toggle the
WCDMA Link
soft key and
select the link direction between
FWD
for forward (downlink) and
REV
for reverse
(uplink).
To specify Rx RP3 Type and RP3 Address of the received message for link rate
6144 Mbps
,
complete the following steps:
Select
More (1/2) >
Rx Address Valid List
.
The Rx Address List box appears. Unlike the Rx Address List, the
Rx Address Valid
List
feature shows only the messages that contain scrambling code seed values.
From the list, select the message to monitor.
Tap the
Apply
button.
The instrument automatically sets the RP3 Address, RP3 Type, and Scrambler Seed
with the selected values.
NOTE
You can also manually specify the RP3 Address, RP3 Type, and Scrambler Seed for the
received message using the
Rx RP3 Type
,
Rx RP3 Address
, and
Scrambler Seed
soft
keys.
If you have selected a WCDMA/FDD message, toggle the
WCDMA Link
soft key and
select the link direction between
FWD
for forward (downlink) and
REV
for reverse
(uplink).
To set the port type and transmission clock reference, complete the following steps:
Toggle the
Port Type
soft key and select
Slave
(default).
Press the
Tx Clock
soft key, and then select
Recovered
(default).
6
Press the
Bandwidth
soft key, and then specify the bandwidth depending on the RP3 type of the
received signal.
WCDMA/FDD REV (uplink): 5 MHz
WCDMA/FDD FWD (downlink): 3 MHz
LTE:
1.4 MHz
,
3 MHz
,
5 MHz
,
10 MHz
,
15 MHz
, and
20 MHz
The RBW range changes based on this bandwidth setting.
7
Optional
. To use the RF signal generator function, see “Using RF source in RFoOBSAI testing”
on page 694.
Calculating possible PIM
The Calculated PIM is used when you want to check any possible existence of PIM before the actual
measurement. The instrument displays possible PIM in red color.
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Press the
Calculated PIM
soft key.
