EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 451)

SCPI Command Reference
OTDR 437
Product-Specific Commands—Description
:SOURce[1..n]:VFLocator:AM:INTernal:
FREQuency?
Description This query returns a value indicating the current
internal modulation frequency. If the visual fault
locator (VFL) is in CW mode, the function will
return 0.
*RST sets the modulation frequency to 0 Hz
(CW).
Syntax :SOURce[1..n]:VFLocator:AM:INTernal:FREQuen
cy?[<wsp>MINimum|MAXimum|DEFault]
Parameter(s) Parameter 1:
The program data syntax for the first parameter is
defined as a <CHARACTER PROGRAM DATA>
element. The allowed <CHARACTER PROGRAM
DATA> elements for this parameter are:
MINimum|MAXimum|DEFault.
MINimum is used to retrieve the instrument's
smallest supported value.
MAXimum is used to retrieve the instrument's
greatest supported value.
DEFault is used to retrieve the instrument's
default value.
Response Syntax <Frequency>