12 | Keysight | FieldFox Handheld Analyzers - Configuration GuideFieldFox Microwave Spectrum AnalyzersFieldFox microwave spectrum analyzer modelsStep 1. Select the model that provides the desired frequency range.Model Description Frequency range 1 Test port connectorsN9935A 9 GHz FieldFox microwave spectrum analyzer 100 kHz to 9 GHz Type-N (f)N9936A 14 GHz FieldFox microwave spectrum analyzer 100 kHz to 14 GHz Type-N (f)N9937A 18 GHz FieldFox microwave spectrum analyzer 100 kHz to 18 GHz Type-N (f)N9938A 26.5 GHz FieldFox microwave spectrum analyzer 100 kHz to 26.5 GHz Type-N (f) 2N9960A 32 GHz FieldFox microwave spectrum analyzer 9 kHz to 32 GHz NMD 2.4 mm (m)N9961A 44 GHz FieldFox microwave spectrum analyzer 9 kHz to 44 GHz NMD 2.4 mm (m)N9962A 50 GHz FieldFox microwave spectrum analyzer 9 kHz to 50 GHz NMD 2.4 mm (m)1. The spectrum analyzer can be tuned to 5 kHz.2. Order Option 100 for 3.5 mm (m) test port connectors. With N9938A-100, the spectrum analyzer is built with 3.5 mm test port connectors instead of thestandard Type-N (f). Option 100 is a prerequisite for Option 320 for N9938A.3. Requires CPU2 fast processor. See page 6, FAQ #134. List of compatible power sensors available from www.keysight.com/find/fieldfoxsupportStep 2. Select optional measurement capabilities.Any of these options can easily be added as a software upgrade in the future.FieldFox microwave spectrum analyzer optionsOption Description Prerequisite options/notesSpectrum analyzer100 2 3.5 mm (m) connectors Only available on N9938A. Option 100 is only available at time of purchase. It is notavailable as an upgrade.209 Extended range transmission analysis (ERTA) Requires 220. Recommend 307. Requires two FieldFoxes. See page 6, FAQ # 10.220 Full-band tracking generator CW, CW coupled, and tracking235 Pre-amplifier -236 Interference analyzer and spectrogram -238 Spectrum analyzer time gating -312 Channel scanner -320 Reflection measurements 320 requires 220 on all models. On N9938A specifically, 320 also requires 100.350 Real-time spectrum analyzer (RTSA)3 Recommend 235. See page 6, FAQ # 12351 I/Q Analyzer (IQA)3 -355 Analog demodulation -Power measurements208 USB power sensor meas. vs. frequency Requires 302302 USB power sensor support Need to order USB power sensor4310 Built-in power meter No power sensor required. See page 8, FAQ #1330 Pulse meas. with USB peak power sensor Need to order USB peak power sensor. See page 9, FAQs #7 and #8System features030 Remote control capability Requires an iOS device307 GPS receiver Need to order GPS antenna, N9910X-825. See page 9, FAQ #3309 DC bias variable-voltage source -Windows based software89601B 89600 VSA Software3 -