Publication No. 980935 Rev. A
3152B User Manual
EADS North America Test and Services
Programming Reference 5-91
AHOP:DWELl <dwell_time>(?)
HS Syntax: 0062A<float>(?)
Description
This selects the dwell time for amplitude hops when the selected mode is Fixed dwell time hops. The dwell
time table in this case does not contain the dwell time per step parameters and therefore, the value which is
programmed with this command remains constant for the entire hop sequence.
Parameters
Name
Range
Type
Default
Description
<dwell_time>
200e-9 to
20
Numeric
200e-9
Programs dwell time for the fixed dwell-time amplitude
hop function. The same dwell time will be valid for each
amplitude hop. Dwell time is programmed in units of s.
Response
The 3152B returns the current dwell time value.
AHOP:FIX:DATA <fix_hop_data>
HS Syntax: 00591#<string>(?)
Description
This command will download the data array that will cause the instrument to hop through the amplitude list.
The dwell time for each amplitude list item is fixed and can be programmed using the HOP:DWEL command.
Note that if you intend to program marker position, you must do it first and then load the amplitude hops list.
Below you can see how a hop table is constructed. The file sample below shows a list of 10 amplitudes. The
3152B will hop through this list, outputting the next amplitude each time it hops. Note that the carrier
waveform is always sinewave and that the last cycle is always completed even if the dwell time is shorter than
the period of the waveform. For example, if you program dwell time of 1ms and the amplitude step has
frequency of 1Hz (1s period), the frequency step will last 1 second although the dwell time is 1ms.
Sample Amplitude Hops Data Array
0 1e0 2e0 3e0 4e+0 5e+0 100e-3 200e-3 300e-3 400e-3 500e-3
Parameters
Name
Type
Description
<fix_hop_data>
Double
Block of binary data that contains information of
amplitude values.
AHOP:FIX:DATA <var_hop_data>
HS Syntax: 00631#<string>(?)
Description
This command will download the data array that will cause the instrument to hop through the amplitude list.
The dwell time for each amplitude list item is variable and is supplied in the variable hop table data array.
Note that the HOP:DWEL command has no effect on this sequence. Also note that if you intend to program
marker position, you must do it first and then load the amplitude hops list.
Below you can see how a hop table is constructed. The file sample below shows a list of 10 amplitudes and
their associated dwell times. The 3152B will hop through this list, outputting the next amplitude each time it
hops. Note that the carrier waveform is always sinewave and that the last cycle is always completed even if
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com