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3.1.6
[:SOURce][:RF]:AM Commands
3.1.6.1
[:SOURce][:RF]:AM:DEPTh
Syntax
[:SOURce][:RF
<
channel>
]:AM:DEPTh
<
value>
[:SOURce][:RF
<
channel>
]:AM:DEPTh?
Description
Sets the AM modulation depth of the specified channel.
Queries the AM modulation depth of the specified channel.
Parameter
Name
Type
Range
Default
<channel>
Discrete
1|2|3|4|5|6|7|8
1
<value>
Real
0 to 100
50
Remarks
•
When "internal" modulation source is selected, the AM modulation depth (m
a
)
and amplitude difference (ΔP
sb
) between the carrier and sidebands satisfy the
following relations: ΔP
sb
= 6-20lg m
a
.
•
Besides, <value> can also be expressed in percentage. For example, 80%.
Return Format
The query returns the modulation depth. For example, 80.00
Example
:RF2:AM:DEPT 80 /*Sets the AM modulation depth of CH2 to 80%.*/
:RF2:AM:DEPT? /*The query returns 80.00.*/
3.1.6.2
[:SOURce][:RF]:AM:FREQuency
Syntax
[:SOURce][:RF
<
channel>
]:AM:FREQuency
<
freq>[<unit>]
[:SOURce][:RF
<
channel>
]:AM:FREQuency?
Description
Sets the AM modulation frequency of the specified channel.
Command System
38
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