R&S XU 4200  External Automatic Filters 
6166.5368.02.01 3.80   
3.7.1.3  Configuration 
Setting using  
the R&S ZS 4200 
Use the Service and Maintenance Tool R&S ZS 4200 to activate the Telsa 
external automatic filter. 
1.  Set the “Motor Tuned Telsa Filter” parameter to “Enable” on the radio. 
 
Note: The operation of the Service and Maintenance Tool R&S ZS 4200 is 
described in detail in the corresponding operating manual. 
3.7.1.4  Limitations/Notes 
Limitations 
Please note that there are certain limitations to radio operation if a Telsa 
Automatic Cavity Filter is used: 
  Enabling the Telsa external automatic filter will reduce the frequency 
range. Please refer to the specification of the filter 
 
Note: If more than one radio is used, each radio needs its separate filter. 
Note: The timeout for tuning the filter is set to 60 seconds. If the filter has 
not tuned to the correct setting by this time, the radio will generate a CBIT 
warning. 
 
3.7.2  R&S External Automatic Filter  
This chapter 
This chapter provides information about cabling and configuration using the 
R&S external automatic filter R&S®Fx22x together with the radio. 
3.7.2.1  Introduction/Overview 
Introduction 
The radio directly supports serial control of Telsa Automatic Cavity Filters. 
With help of R&S®KG42-Z75 X-cross adapter the R&S®Fx22x automatic 
filters can be used together with the R&S®Series4200 radios. 
The R&S external automatic filter is optional hardware equipment and it is 
not contained in a standard shipment.