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HP 11757B
Measurement Setup
AGC power over. Press
this is set to. Use the arrow or data entry keys to
set a value. Use a value close to the radio's channel
bandwidth, then press
10. The display should now read \
allows you to set the wait time after every notch
movement. This wait allows your radio some settling
time before a Bit Error Rate measurement is made
by the Fader. Press
set to. Use the arrow or data entry keys to set a new
value if desired, then press
11. The display should now read \
allows you to set the notch's maximum slew rate
during measurements. Press
value this is set to. Use the arrow or data entry keys
to set a new value if desired, then press
12. The display should now read \
This allows you to set the symbol time of your radio.
You will not need to set this unless you are planning
to perform a CCIR DFM calculation. The radio
setup is now complete. CCIR DFM is only available
in serial pre xes 3215A and above.
1. Press
4 MEAS SETUP 5
parameters to enter to set the Fader up for a
measurement.
2. The rst item displayed under
". This speci es the number of linearly
DATA PTS
spaced frequencies to calculate and measure in the
band you have selected. Press
use the arrow or data keys to enter a value, then
press
to get the next parameter. 11 is a good
4 ENTER 5
value to enter to keep the measurement time down.
3. The second and third items will be \
and \
2 STOP FRQ
Digital Radio Testing
to see what value
4 ENTER 5
.
4 ENTER 5
7 WAIT TIME
to see what value this is
4 ENTER 5
.
4 ENTER 5
8 MAX SLEW
to see what
4 ENTER 5
4 ENTER 5
9 SYMBL TIME
. This will access a series of
4 MEAS SETUP 5
to access, then
4 ENTER 5
1 STRT FRQ
". These access the start and stop
". This
". This
.
".
is \
0
"
1-7
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