# FSL-K7 Rohde & Schwarz NEW

**Features:**

-   AM/FM/φM measurement demodulator (Unregistered License)
-   For FSL spectrum analyzers
-   Converts the R&S FSL into an analog modulation analyzer for amplitude, frequency or phase-modulated signals
-   Measures not only characteristics of the useful modulation, but also factors such as residual FM or synchronous modulation

The R&S FSL-K7 AM/FM/φM measurement demodulator converts the R&S FSL into an analog modulation analyzer for amplitude, frequency or phase-modulated signals. It measures not only characteristics of the useful modulation, but also factors such as residual FM or synchronous modulation.

**Display and evaluation capabilities**

-   Modulation signal versus time
-   Spectrum of modulation signal (FFT)
-   RF signal power versus time
-   Spectrum of RF signal (FFT versus max. 18 MHz)
-   Table with numeric display of
    -   Deviation or modulation depth, +peak, -peak, ± peak/2 and RMS weighted
    -   Modulation frequency
    -   Carrier frequency offset
    -   Carrier power
    -   Total harmonic distortion (THD) and SINAD

The digital signal processing in the R&S FSL, used in the analyzer mode for digital IF filters, is also ideally suited for demodulating AM, FM, or PM signals. The firmware option R&S FSL-K7 provides the necessary measurement functions.

The R&S FSL is equipped with a demodulator that is capable of performing AM, FM, and PM demodulation at a time. Additionally maximum, minimum and average or current values can be obtained parallelly over a selected number of measurements.

By sampling (digitization) already at the IF and digital down-conversion to the baseband (I/Q), the demodulator achieves maximum accuracy and temperature stability. There is no evidence of typical errors of an analog down-conversion and demodulation like AM to FM conversion and vice versa, deviation error, frequency response or frequency drift at DC coupling.

**\*The image is for reference only. See product specification for details.**

## Details

- **Price:** 2885.0 USD
- **Vendor:** Rohde & Schwarz
- **Type:** Software
- **Tags:** Accessories, Buy New Equipment AVADA, Manufacturers, Measurement, New, Optional, Other, Other Equipment, Product new, product_manual_group_3, Product_new, Rohde, Rohde & Schwarz, Software, spec ana, Spectrum, spectrum analyzers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2885.00 USD | In stock |

## Images

- FSL-K7 Rohde & Schwarz NEW

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> Source: [ValueTronics](https://valuetronics.com/products/fsl-k7-new-rohdes-unassigned-new)
> Updated: 2026-05-21