The SM435B is a high-performance spectrum analyzer and monitoring receiver. Tuning from 100 kHz to 43.5 GHz, the analyzer has 160 MHz of instantaneous bandwidth (IBW), 110 dB of dynamic range, 1THz/sec sweep speed at 30kHz RBW (using Nuttall windowing), and phase noise performance that is low enough to contribute less than 0.1% error to EVM measurements and rival even the most expensive spectrum analyzers on the market.
The SM435B offers 160 MHz instantaneous bandwidth (IBW) calibrated I/Q capture, available through block transfer of a 2-second I/Q buffer over USB 3.0 to the PC (learn more about this feature).
Signal processing is distributed between a very powerful Intel FPGA and an external PC having an Intel Core i7 processor. The Signal Hound SM435B can be readily interfaced, using its local API, to an automated monitoring system or to automated test equipment. The SM435B API provides customers the access needed to insert their own DSP algorithms into a calibrated stream of I/Q data.
Download the SM435B data sheet
The SM435B is capable of high-performance RF analysis, connected to a PC via USB 3.0. Download this sheet to get all the details and assess for your application
FREQUENCY
• Range: 100 kHz to 43.5 GHz
• RF Input Impedance (2.4mm connector): 50Ω
• Calibrated Streaming I/Q: 5 kHz to 40 MHz of selectable I/Q bandwidth
• Includes an internal GPS, used for timebase synchronization, I/Q timestamping, and GPS positioning
• Resolution Bandwidths (RBW): 0.1 Hz (≤200kHz span) to 3 MHz (any span) using 40 MHz IBW; 30 kHz to 10 MHz using 160 MHz IBW
• Timebase Accuracy: GPS disciplined OCXO remains within ±5 x 10-10 when locked to GPS
– holdover of ±5 x 10-9 /day for aging (±2 x 10-8 first day typ)
– holdover of ±1 x 10-8 for temperature over -40°C to 65°C
SYSTEM NOISE FIGURE (typical)
12dB from 700 MHz to 2.5 GHz;
15dB from 2.5 GHz to 24 GHz;
18dB + 0.5dB/GHz from 24 GHz to 40 GHz;
26dB + 2.0dB/GHz from 40 GHz to 43.5 GHz;
IP2
+75dBm from 100 kHz to 20 GHz
+50dBm from 20 GHz to 24 GHz
+70dBm from 24 GHz to 43.5 GHz
IP3
+28dBm from 100 kHz to 4 GHz;
+23dBm from 4 GHz to 6 GHz;
+20dBm from 6 GHz to 43.5 GHz
…get ALL the details in the data sheet: SM435B Data Sheet
Learn more about the SM435B’s I/Q capture feature
The SM435B features 160 MHz instantaneous bandwidth (IBW) I/Q capture, enabling in-depth analysis of the capture on your PC. Learn more about this feature.
Download SM-series CAD files for your system integration project
If you’re integrating our SM-series devices into a larger system or a custom enclosure, know what you’re working with by downloading these STEP files and importing them into your design system.
Device dimensions
| Version | SM435B — 43.5 GHz Real-time Spectrum Analyzer - Option 80, IF Output Option |
|---|---|
| Weight | 7.77 lbs (3.52 kg) |
| Dimensions | 10.2" x 7.2" x 2.15" (25.9 x 18.3 x 5.5 cm) |
| Version | SM435B — 43.5 GHz Real-time Spectrum Analyzer - Option 1 + Option 80, IF Output Option |
|---|---|
| Weight | 9.13 lbs. (4.14 kg) |
| Dimensions | 10.2” x 7.2” x 2.80” (25.9 x 18.3 x 7.11 cm) |
Product-in-packaging dimensions
| Version | SM435B — 43.5 GHz Real-time Spectrum Analyzer - Option 80, IF Output Option |
|---|---|
| Weight | 12.50 lbs. (5.67 kg) |
| Dimensions | 16.5" x 11" x 8.44" (41.9 x 27.9 x 21.44 cm) |
| Version | SM435B — 43.5 GHz Real-time Spectrum Analyzer - Option 1 + Option 80, IF Output Option |
|---|---|
| Weight | 13.66 lbs (6.20 kg) |
| Dimensions | 16.5" x 11" x 8.44" (41.9 x 27.9 x 21.44 cm) |
Software and Drivers
- Spectrum analysis software for all Signal Hound spectrum analyzers.
- Installs the necessary USB drivers for the SM200 and SM435 devices.
Signal Hound Software Development Kit
- Read API Docs
- Includes programming interface for SM200 and SM435 devices.
- Low level direct device control and measurements.
- 64/32-bit Windows and 64-bit Linux operating systems.
Manuals
All manuals are included with the Spike software installer. For direct manual links see below.
SM200 and SM435 Product Manual
10GbE Network Configuration Guide
Firmware
Firmware updater for all models of the SM200 and SM435. You can see the current firmware version of your device in the Spike status bar.
Read the release_notes before updating the firmware on your device.
Firmware Updater (1/22/2025)
SM200 STEP File Downloads
3D model files (CAD) of the exterior of the SM200A, B, and C, in the Standard for the Exchange of Product Data (STEP) format. Perfect for those needing the physical specs of the SM200-series devices for system integration purposes.
SM435 STEP File Downloads
3D model files (CAD) of the exterior of the SM435B and SM435C, in the Standard for the Exchange of Product Data (STEP) format. Perfect for those needing the physical specs of the SM435-series devices for system integration purposes.
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