YC-TI-RCV-0003 | 3943B-S Handheld Monitoring Receiver
Price on request
Request a quoteThe 3943B-S handheld monitoring receiver covers 9 kHz–8 GHz with 20 MHz analysis bandwidth and parallel spectrum, level and demodulation channels. It supports portable spectrum monitoring, emitter searches and system integration. Automatic direction finding at 20 MHz–6 GHz, GPS/BeiDou synchronization, recording/playback and digital-radio monitoring depend on options and suitable antennas.
Model selection
| Model | Frequency range |
|---|---|
| 3943B-S | 9 kHz–8 GHz |
Key specifications
| Parameter | Specification |
|---|---|
| Monitoring frequency range | 9 kHz–8 GHz |
| Analysis bandwidth | 20 MHz |
| Maximum input level for linear operation | -13 dBm (9 kHz≤f≤20 MHz); 3 dBm (20 MHz<f≤3.6 GHz); -24 dBm (3.6<f≤8 GHz) |
| Displayed average noise level (spectrum channel) | ≤-151 dBm (100 kHz≤f≤1 MHz); ≤-154 dBm (1 MHz<f≤80 MHz); ≤-160 dBm (80 MHz<f≤1.5 GHz); ≤-155 dBm (1.5<f≤5.8 GHz); ≤-151 dBm (5.8<f≤8 GHz) |
| Noise figure (level channel) | ≤17 dB at 1 MHz; ≤11 dB at 1.1 GHz |
| Phase noise | <-115 dBc/Hz (11 MHz carrier, 10 kHz offset); <-117 dBc/Hz (11 MHz carrier, 100 kHz offset); <-95 dBc/Hz (500 MHz carrier, 10 kHz or 100 kHz offset) |
| AM demodulation sensitivity | ≤-105.5 dBm (9 kHz≤f≤20 MHz); ≤-110 dBm (20 MHz<f≤1.5 GHz); ≤-106 dBm (1.5<f≤3.6 GHz); ≤-102 dBm (3.6<f≤8 GHz) |
| FM demodulation sensitivity | ≤-103 dBm (9 kHz≤f≤20 MHz); ≤-111 dBm (20 MHz<f≤1.5 GHz); ≤-107 dBm (1.5<f≤3.6 GHz); ≤-102 dBm (3.6<f≤8 GHz) |
| Third-order intercept | >18 dBm (9 kHz≤f≤20 MHz); >15 dBm (20 MHz<f≤1.5 GHz, low-distortion mode); >15 dBm (1.5<f≤3.6 GHz, low-distortion mode); >-8 dBm (3.6<f≤8 GHz) |
| Second-order intercept | >30 dBm (9 kHz≤f≤1.5 GHz); >60 dBm (1.5<f≤3.6 GHz); >55 dBm (3.6<f≤5.8 GHz); >50 dBm (5.8<f≤8 GHz) |
| Image rejection | >60 dB (20 MHz≤f≤3.6 GHz); >70 dB (3.6<f≤8 GHz) |
| IF rejection | >80 dB (20 MHz≤f≤3.6 GHz); >90 dB (3.6<f≤8 GHz) |
| Residual response | <-100 dBm (9 kHz≤f≤3.6 GHz); <-90 dBm (3.6<f≤7 GHz); <-80 dBm (7<f≤8 GHz) |
| Panorama scanning rate | >2 GHz/s |
| Amplitude accuracy | Better than ±3 dB |
| IF spectrum spans | 1, 2, 5, 10, 20, 50, 100, 200, 500 kHz; 1, 2, 5, 10, 20 MHz |
| Demodulation modes | AM, FM, PM, CW, LSB, USB, ISB, PULSE, IQ |
| Dimensions (W×H×D) | (182.5±1.2)×(289±1.2)×(69±0.8) mm |
| Temperature range | Storage: -40–+70 °C; operating: 0–+50 °C |
| Power supply | Battery or power adapter; nominal adapter input: AC 100–240 V, 50–60 Hz |
| Power consumption | <30 W |
| Weight | ≤3.5 kg including battery and hand strap |
Functions and configuration
| Parameter | Specification |
|---|---|
| RF preselection | Full-band preselection to suppress out-of-band signals and improve reception in strong-signal environments |
| Parallel channels | Spectrum, level/field-strength measurement and demodulation operate in parallel |
| Real-time spectrum channel | Selectable bandwidth 1 kHz–20 MHz |
| Level/field-strength channel | 34 IF filters; IF bandwidth 100 Hz–20 MHz; field-strength function depends on the option |
| Automatic frequency control | AFC tracks a signal within the demodulation bandwidth; demodulated audio output |
| Scanning and displays | Fixed-frequency reception, panorama, frequency and list scanning; spectrum and waterfall views, with scan extensions by option |
| Digital radio monitoring (option) | TETRA, DMR, PDT, dPMR, NXDN, DSTAR, P25, C4FM; protocol type, audio, messages and trunking base-station data |
| Video emanation detection | Detection and image reconstruction of HDMI/VGA video emanations; applicable function configuration is specified in the quotation |
| Manual direction finding (with antenna) | Directional antenna bands: 9 kHz–20 MHz, 20–200 MHz, 200–500 MHz, 500 MHz–8 GHz; visual signal-strength direction and antenna-handle controls, with optional digital maps |
| Automatic direction finding (option and antenna) | Single-channel correlation interferometer; 20 MHz–6 GHz; maximum bandwidth 20 MHz; direction accuracy better than 3° RMS, fastest 30 ms per result |
| Emitter localization | Location based on direction results with digital-map display; matching DF and map configurations are required |
| Time synchronization (GPS/BeiDou option) | Data timestamp accuracy better than 100 ns; frequency accuracy better than 0.01 ppm; supports TDOA and multi-device coordination |
| Recording and playback (option) | IQ, audio and spectrum; internal memory or external SD card; variable-speed spectrum playback |
| Remote control and data transfer | LAN transfer of level, spectrum, audio and IQ data; IQ streaming up to 20 MHz analysis bandwidth; programmable control |
| Portable operation | Stand, hand strap and shoulder strap support desktop, handheld and carried use; outdoor display mode; accessory scope follows the order |
Optional functions and antennas
| Option code | Function |
|---|---|
| 3943B-001 | Panorama scanning |
| 3943B-002 | Horizontal scanning |
| 3943B-003 | Field-strength measurement |
| 3943B-005 | Signal recording and playback |
| 3943B-006 | Digital maps |
| 3943B-007 | GPS/BeiDou |
| 3943B-008 | Micro SD card |
| 3943B-014 | Handheld directional antenna |
| 3943B-016 | Direction finding |
| 3943B-020 | Display-free metal enclosure |
| 3943B-021 | Digital radio monitoring |
| 3943B-023 | Compact direction-finding antenna |
Standard accessories
| Parameter | Specification |
|---|---|
| Power cord | Standard accessory |
| User manual | Standard accessory |
| Programming manual | Standard accessory |
| Product conformity certificate | Standard accessory |
Selection and operating notes
- Monitoring covers 9 kHz–8 GHz; automatic direction finding covers 20 MHz–6 GHz and requires the DF option and a suitable antenna. These ranges are not interchangeable.
- Analysis bandwidth is 20 MHz. Panorama scanning, field-strength measurement, recording, maps, GPS/BeiDou and digital-radio functions depend on the selected options.
- Maximum input level for linear operation is not a damage limit. Control input by frequency band and select appropriate protection accessories for the application.
- Handheld directional and compact DF antennas are options. Localization, maps and TDOA require compatible antenna, synchronization and external-system configurations; the complete system is not included by default.
- The photo illustrates the display-equipped 3943B-S. A display-free metal enclosure is a separate structural option. Configuration, accessories, delivery and service scope follow the formal quotation and order.