User`s guide

Base Station Emulator Mode 3
E6651A User’s Guide 37
Downlink UDP Test
Upon establishing two way communications, control and
broadcast messages are transmitted between the E6651A and
the SS, though no user traffic is present. The E6651A can
test the receiver performance of the SS by transmitting user
data in the downlink direction. To perform the Downlink
UDP Test:
1 Set the Downlink UDP Test Mode: After establishing two
way communications, press in the BSE Mode
Selection Menu to select . is a toggle
type.
2 Run the Downlink UDP Test: Press in the
Selection Menu. While Downlink UDP test is in progress,
the counts of transmitted packets, received packets, and
lost packets in Base Station Information window are being
updated continuously with error rate value.
3 Measure the Signal Quality: In Downlink Test Mode, the
E6651A transmits a downlink signal that is only available
for measurement at the subscriber station. Contact the SS
vendor for a testing tool that may be connected to the SS
for downlink signal performance measurement.
Test Mode
DL UDP Test Test Mode
Run Test