Rohde & Schwarz Spectrum Analyzer Preamplifier, 5 kHz to 44 GHz for R&S®FPH var .44 and R&S®FPH var .54 (timed license, 6 months)
The R&S®FPH-K44 preamplifier option (part number 1334.6600.16) is a software license enabling the preamplifier function for the R&S®FPH handheld spectrum analyzer, specifically for variants .44 and .54. This option extends the analyzer's sensitivity by activating a low-noise preamplifier covering the frequency range from 5 kHz to 44 GHz. The preamplifier improves measurement accuracy for weak signals by reducing the noise floor, making it ideal for applications requiring detection of low-level signals in the field or laboratory. The license is time-limited to 6 months and is activated via a key code.