3152B User Manual
Publication No. 980935 Rev. A
5-90 Programming Reference
EADS North America Test and Services
FHOP:MARKer<index>(?)
HS Syntax: 0072A<integer>(?)
Description
Programs where on the frequency list the 3152B will generate a pulse, designated as Hop marker, or index
point. The marker pulse is generated at the SYNC output connector.
Parameters
Name
Range
Type
Default
Description
<index>
1 to 5000 Numeric
(integer only)
1
Programs a marker pulse at an index frequency hop
position.
Response
The 3152B returns the current marker position.
Amplitude
Hopping
Modulation
Programming
Use the following commands for programming the amplitude hop
parameters. Hop control is internal. The amplitude will hop from
amplitude level to amplitude level at a rate determined by the dwell
time value and controlled by a sequence of amplitudes in the HOP
data table.
There are two hop modes: Fixed Dwell, where the rate of which the
generator hops from amplitude level to amplitude level is constant and
Variable Dwell, where the rate of which the generator hops from
amplitude level to amplitude level is programmable for each hop.
The commands for programming the amplitude hopping function are
described below. Note that the carrier waveform frequency (CW)
setting is common to all modulation schemes.
AHOP:DWELl:MODe {FIXed|VARiable}(?)
HS Syntax: 0061A<0|1>(?)
Description
This selects between fixed or variable dwell-time for the amplitude hops. Select the fixed option if you want
each amplitude level to dwell equally on each step. The variable option lets you program different dwell times
for each amplitude hop. The 3152B output level hops from one amplitude level to the next according to a
sequence given in a hop table. The variable dwell time table contains dwell time data for each step however,
the fixed dwell time table does not contain any dwell time information and therefore, if you select the fixed
option, make sure your dwell time is programmed as required.
Parameters
Name
Type
Default
Description
FIXed
Discrete
FIX
Selects the fixed dwell time amplitude hops mode
VARiable
Discrete
Select the variable dwell time amplitude hops mode
Response
The 3152B returns FIX or VAR depending on the selected dwell setting.
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