Mgc-Squ-Tone Keys And The Var Potentiometer - R&S EB200 Manual

EB200 Manual Operation

3.4.3 MGC-SQU-TONE keys and the VAR potentiometer

All three functions can be turned on or off. In the ON state, a setting value can be assigned. This value
can be adjusted with the VAR potentiometer (on the left next to the volume control).
The functions are independent and switching on one function need not necessarily have an effect on
another.
The following applies to all three functions:
When you press a key (MGC, SQU or TONE), the function is turned on and, at the same time, the
digital pot for adjusting the associated setting value is activated.
The lettering (MGC, SQU or TONE) and the presentation of the value in inverse video indicate that
variation with the digital pot has been selected.
If the function has already been selected and the same key is pressed again, the function is turned off.
The following is then displayed in the appropriate field:
MGC OFF (= AGC)
SQU OFF
TONE OFF
When you press a key, one of the three functions goes from the OFF-state to the ON-state and is
simultaneously selected, the selection of one of the other two functions being cancelled.
The values are displayed in dBµV.
MGC key
Switching the MGC function on or off (switch over from MGC to AGC)
MGC is short for Manual Gain Control (gain control by potentiometer).
AGC is short for Automatic Gain Control
The MGC or AGC status (corresponds to MGC off) is presented below the MGC key on the display.
If MGC is selected, MGC is displayed with a value between -30 and 110.
The unit of the MGC value is dBµV.
SQU key
Turning the squelch function on or off
The SQU status is presented below the SQU key on the display.
If SQU is turned off, SQU OFF is displayed.
If SQU is turned on, SQU is displayed with a value between -30 and 110 (threshold value).
The unit of the SQU value is dBµV.
4052.2000.02 3.14 E-7