

150 kHz to 8 GHz | External spectrum analyzer | Down to 0.06 mm
EMScannerR helps engineers locate and compare PCB emission sources across a 316 x 218 mm scan area. Its eight selectable resolution levels run from 7.5 mm down to 0.06 mm for detailed investigation of dense boards. Use it with a compatible external spectrum analyzer and a PC running EMViewer.
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150 kHz to 8 GHz | External spectrum analyzer | Down to 0.06 mm
EMScannerR helps engineers locate and compare PCB emission sources across a 316 x 218 mm scan area. Its eight selectable resolution levels run from 7.5 mm down to 0.06 mm for detailed investigation of dense boards. Use it with a compatible external spectrum analyzer and a PC running EMViewer.
| Specification | Details |
|---|---|
| Frequency coverage | 150 kHz to 8 GHz |
| Spectrum analyzer | External, compatible |
| Spatial sampling / resolution | 7.5 to 0.06 mm; 8 levels |
| Antenna array | 1,218 H-field probes arranged as 42 x 29 |
| Scan area | 316 x 218 mm (12.44 x 8.58 in) |
| Probe-to-probe correction | Factory calibration; frequency-dependent correction factors, +/-3 dB |
| Measurement-plane isolation | Greater than 20 dB |
| Maximum radiated power load | 10 W / 40 dBm, as specified for the scanner |
| Enclosure | Anodized non-conductive metal |
| Dielectric withstand: glass cover | 4 kV DC; 2.6 kV AC |
| Dielectric withstand: metal case | 260 V DC; 200 V AC |
| Operating temperature | 15 to 40 degrees C; datasheet condition: continuous spectral/spatial scanning at 50 MHz |
| Measurement sensitivity | Determined by analyzer performance and measurement settings |
| Frequency marking accuracy | Determined by spectrum analyzer |
| Full-area spatial scan | About 5 s at Level 1 with all 1,218 probes active |
| Spectral scan example | 11 s for a 100 x 100 mm area, 178 probes, 10 to 110 MHz and 122 kHz RBW |
| Operating system | Windows 10/11 in the retained setup guide/datasheet; verify the installed EMViewer release |
| Overlays | Gerber RS274x and HPGL; JPEG supported |
| Dimensions (L x W x H) | 345 x 435 x 110 mm (13.58 x 17.13 x 4.33 in) |
| Weight | 12.70 kg / 28 lb, including cables and adapter |
| Fuse rating | 8 A |
| Control connection | Ethernet/LAN, per setup guide |
| RF connection | SMA-to-Type-N cable to spectrum analyzer |
| Power supply in setup guide | 90-264 V AC input; 12 V DC, 8.34 A output |
| Analyzer trigger connection | SMB-to-BNC external trigger; guide says not required from EMViewer 12.0.0 onward |
Timing examples below apply to a selected 22.5 x 22.5 mm area with nine probes. Full-area Level 1 is approximately five seconds; actual time depends on measurement settings.
| Level | Sampling interval | Example time |
|---|---|---|
| 1 | 7.50 mm | Less than 0.5 s |
| 2 | 3.75 mm | 4 s |
| 3 | 1.88 mm | 9 s |
| 4 | 0.94 mm | 21 s |
| 5 | 0.47 mm | 55 s |
| 6 | 0.24 mm | 2 min 35 s |
| 7 | 0.12 mm | 7 min 23 s |
| 8 | 0.06 mm | 24 min |
Documented system components
User-supplied or separately specified
| Step | What the engineer does |
|---|---|
| 1. Configure | Choose the frequency band, analyzer settings and scan area; connect the DUT and measurement system. |
| 2. Locate | Run a spectral or spatial scan to identify frequencies and emission hot spots. |
| 3. Investigate | Refine the region, probe position or resolution while keeping the setup controlled. |
| 4. Compare | Repeat after a design change, compare results and retain maps and reports. |
EMViewer links scan position with RF measurements. Available modes include spectral sweeps, spatial hot-spot maps and combined scans. Confirm the supported software release, analyzer driver, license and support term when configuring the system.
EMViewer software information | Spectrum-analyzer compatibility
Manufacturer product information
Choose the measurement method, analyzer configuration and workspace that fit your DUT. Select a product name or picture for its full details.
| Product | Method / best fit | RF coverage / analyzer | Scan area or workspace | Sampling / positioning |
|---|---|---|---|---|
![]() EMScanner |
Fixed H-field array Fast PCB overview and design comparisons |
150 kHz to 8 GHz External, compatible |
316 x 218 mm | 7.5 mm pitch; 3.75 mm effective |
![]() EMScannerR |
High-resolution array Dense PCB hot-spot detail |
150 kHz to 8 GHz External, compatible |
316 x 218 mm | 7.5 to 0.06 mm; 8 levels |
![]() EMScanner+ |
Fixed H-field array Fast PCB overview and design comparisons |
150 kHz to 6 GHz Internal BB60C |
316 x 218 mm | 7.5 mm pitch; 3.75 mm effective |
![]() EMScannerR+ |
High-resolution array Dense PCB hot-spot detail |
150 kHz to 6 GHz Internal BB60C |
316 x 218 mm | 7.5 to 0.06 mm; 8 levels |
![]() NFP Kit |
Handheld, camera-tracked Interactive troubleshooting and flexible probing |
Probe/analyzer dependent; see probe table External, compatible |
Camera field of view / setup | Manual positioning; tracking/setup dependent |
![]() EMProbe |
Compact robotic arm Component-side and variable-height scans |
Probe/analyzer dependent; see probe table External, compatible |
300 mm radius, standard arm | 7.5 to 0.2 mm scan spacing |
![]() EMProbe DBM E6 |
6-axis robot Repeatable multi-angle scans |
Probe/analyzer dependent; see probe table External, compatible |
450 mm radius | 0.1 mm scan spacing; 0.01 mm repeatability |
![]() EMProbe CR5 |
Custom 6-axis robot Larger DUTs and custom fixtures |
Selected probes and analyzer External, compatible |
900 mm working-radius example; usable scan envelope customized | +/-0.02 mm robot repeatability; scan spacing specified per project |