Instrument Functions
R&S
®
FSVA/FSV
505Operating Manual 1176.7510.02 ─ 09
Type of Limit Precondition Range / Value
Maximum number of
samples
samplesindelaygroup
ISR
SR
MsMsMin
100,100
Note: the internal filter settling time depends on the relation:
Some R&S FSVA/FSV applications limit the maximum number
of samples to reasonable values.
In I/Q Analyzer mode (Eval mode, see TRACe<n>:IQ:EVAL
on page 899), the maximum number of samples is restricted
to:
samplesindelaygroup
ISR
SR
MsMioMin
100,10
Maximum number of I/Q
pretrigger samples
-(MaxNoOfSamples-1) to + (MaxNoOfSamples-1)
(*) Note the relationship between the sample rate and the input sample rate, which may restrict the value
ranges further:
ISR
min
= SR/254
ISR
max
= SR*2*1048576
Table 3-16: Typical values for the maximum number of samples depending on the SR/ISR relation
SR/ISR Max number of samples
100 104857600
10 104857600
1 104857600
1/10 10485686
1/100 1048508
SlowIQ measurements
"SlowIQ" measurements are measurements where the sample rate exceeds the rate
used to transfer valid samples. In the R&S FSVA/FSV, the sample rate may exceed
100 MHz for "SlowIQ" measurements. This happens, for example, when an analog sig-
nal is sampled by external hardware, e.g. an oscilloscope, with a sample rate > 100
MHz, is stored there in a memory temporarily and then read from the memory and
transmitted to the R&S FSVA/FSV. In this case, make sure the source sample rate is
defined corrrespondingly for the connected device (see "Input Sample Rate"
on page 429).
Bandwidths
Depending on the sample rate, the following bandwidths are available:
Instrument Functions - R&S Digital I/Q Interface (Option R&S
FSV-B17)
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