R&S®FK2020/FK2040 Digital Pre-/Post-Selectors

Embedded, automatically tuned tracking pre-/post-selectors, up to 40 dB selectivity

  • Overview

Key Facts

  • Seven-pole lowpass (0 Hz to 30 MHz) for suppressing interference >30 MHz
  • Five-pole lowpass (0 Hz to 1.5 MHz) for suppressing strongly interfering shortwave signals

Key Facts

The Digitally Tuned RF Selectors R&S®FK20xx are plug-in modules and can be retrofitted to the Transceivers/Receivers R&S®XK2100L, R&S®GX2900L and R&S®EK2000. They provide the following functions:

  • Seven-pole lowpass (0 Hz to 30 MHz) for suppressing interference >30 MHz
  • Five-pole lowpass (0 Hz to 1.5 MHz) for suppressing strongly interfering shortwave signals
  • Tunable tracking bandpass filter (1.5 MHz to 30 MHz) with stopband attenuation of 20 dB/40 dB at 10 % frequency offset (R&S®FK2020/2040)
  • Automatic tracking both in reception and transmission mode
  • Remote control on/off (filter in RX direction can be bypassed)
  • Input voltage protection up to 200 V EMF

The use of the Digitally Tuned RF Selectors ¸FK 20xx is recommendedin stronglydisturbed RF environments, i.e. for collocation scenarios such as they occur on board ships. The selectors improve both the receiver input selectivity and the phase noise at the transmitter output.

The R&S®FK20xx is always active in TX direction. In RX direction, it can be bypassed (manually or via remote control). A high linearity mode can be configured for very difficult receiving conditions.

This, however, reduces the sensitivity of the transceiver/receiver by about 20 dB.

Thank you.

Your request was successfully sent!

We will get in touch with you soon.

Your Rohde & Schwarz Team

Get a Demo

Please enter your inquiry.
Please enter your first name.
Please enter your name.
Please enter a valid email address.
Please enter your company name.
Please enter your city name.
Please enter your postal code.

Please enter your location.
Marketing permission

I want to receive information from Rohde & Schwarz via


What does this mean in detail?

I agree that Rohde & Schwarz GmbH & Co. KG and the Rohde & Schwarz entity or subsidiary company mentioned in the imprint of this website, may contact me via the chosen channel (email or postal mail) for marketing and advertising purposes (e.g. information on special offers and discount promotions) related to, but not limited to, products and solutions in the fields of test and measurement, secure communications, monitoring and network testing, broadcast and media, and cybersecurity.

Your rights

This declaration of consent may be withdrawn at any time by sending an email with the subject "Unsubscribe" to news@rohde-schwarz.com. Additionally, a link to unsubscribe from future email advertisements is contained in each email sent. Further details on the use of personal data and the withdrawal procedure are set out in the Statement of Privacy.

Please enter the characters shown in the image
show captcha
The input was not correct.
Do not enter data in this field
Thank you.

Your request was successfully sent!

We will get in touch with you soon.

Your Rohde & Schwarz Team

Get a Quote

Please enter your inquiry.
Please enter your first name.
Please enter your name.
Please enter a valid email address.
Please enter your company name.
Please enter your city name.
Please enter your postal code.
Please enter your phone number.

Please enter your location.
Marketing permission

I want to receive information from Rohde & Schwarz via


What does this mean in detail?

I agree that Rohde & Schwarz GmbH & Co. KG and the Rohde & Schwarz entity or subsidiary company mentioned in the imprint of this website, may contact me via the chosen channel (email or postal mail) for marketing and advertising purposes (e.g. information on special offers and discount promotions) related to, but not limited to, products and solutions in the fields of test and measurement, secure communications, monitoring and network testing, broadcast and media, and cybersecurity.

Your rights

This declaration of consent may be withdrawn at any time by sending an email with the subject "Unsubscribe" to news@rohde-schwarz.com. Additionally, a link to unsubscribe from future email advertisements is contained in each email sent. Further details on the use of personal data and the withdrawal procedure are set out in the Statement of Privacy.

Please enter the characters shown in the image
show captcha
The input was not correct.
Do not enter data in this field
Thank you.

Your request was successfully sent!

We will get in touch with you soon.

Your Rohde & Schwarz Team

Request information

Please enter your inquiry.
Please enter your first name.
Please enter your name.
Please enter a valid email address.
Please enter your company name.
Please enter your city name.
Please enter your postal code.

Please enter your location.
Marketing permission

I want to receive information from Rohde & Schwarz via


What does this mean in detail?

I agree that Rohde & Schwarz GmbH & Co. KG and the Rohde & Schwarz entity or subsidiary company mentioned in the imprint of this website, may contact me via the chosen channel (email or postal mail) for marketing and advertising purposes (e.g. information on special offers and discount promotions) related to, but not limited to, products and solutions in the fields of test and measurement, secure communications, monitoring and network testing, broadcast and media, and cybersecurity.

Your rights

This declaration of consent may be withdrawn at any time by sending an email with the subject "Unsubscribe" to news@rohde-schwarz.com. Additionally, a link to unsubscribe from future email advertisements is contained in each email sent. Further details on the use of personal data and the withdrawal procedure are set out in the Statement of Privacy.

Please enter the characters shown in the image
show captcha
The input was not correct.
Do not enter data in this field
International Website