The overall size of the handheld monitoring receiver is 182.5mm×289mm×69mm, the weight of the whole machine is less than 3.5kg, the working time is 3-4h with battery, the display is 10.1-inch TFT, and the integrated touch screen
Main Feature
- Excellent reception performance
- Multi-channel parallel operation
- Multi-mode scanning with ITU compliance
- Signal demodulation supporting multiple modulation patterns
- Computer video leak detection and restoration
- Manual radiation source direction finding by directional antenna
- Automatic radiation source direction finding through multi-element directional antenna
- Radiation source positioning function
- Radio signal recording function
- Audio and spectrum data playback
- Remote control
- High-precision time synchronization
- New operating concept
- Support multiple operation method
FUNCTIONS & FEATURES
Excellent Reception Performance
l Wide monitoring frequency range (9kHz~8GHz) and direction finding frequency range (20MHz~6GHz) to meet current and future radio service signal reception
l Provide a maximum 20MHz analysis bandwidth, even a wide spectrum of short pulses or bursts can be detected and analyzed
l The full-band pre-selection design conforms to the radio frequency characteristics, that is, avoiding equipment overload, high-sensitivity receiving signal, supplemented by higher signal resolution, and superior reception performance.
Multi-channel Parallel Operation
l Three parallel processing channels provide spectrum measurement, level field strength measurement and demodulation functions respectively, which is convenient for users to obtain multi-domain correlation analysis results of signals.
l The spectrum measurement channel's real-time spectrum bandwidth can be set from 1 kHz to 20MHz, with 35 steps from 0.625Hz to 2MHz resolution bandwidth. The spectrum can be selected to perform averaging, sampling, maximum hold or minimum hold before output through the screen or LAN interfaces.
l The level field strength measurement channel has 34 IF filters, the IF bandwidth is from 100Hz to 20MHz, and can be selected independently of the spectrum bandwidth, which is convenient for users to process different signals with optimal signal ratio; level/field strength through screen or LAN interface Optional sampling, peak, power or average detection before output
l Demodulation channel receive level field strength measurement channel the complex baseband signal output of the IF filter can be directly used for FM/PM demodulation. The complex baseband signal adjusted by AGC/MGC can be directly output through the LAN interface or used for AM/LSB/USB/ISB/CW/PULSE demodulation and demodulation result data can be output through LAN interface; digital audio demodulation data can be output by LAN interface or converted into analog signal for speaker playback.
Signal Demodulation Supporting Multiple Modulation Patterns
l Signal formats that support demodulation include FM/ PM/ AM/ LSB/ USB/ ISB/ CW/ PULSE/ IQ.
l Supports up to 20MHz demodulation bandwidth, demodulation bandwidth can be set from 100Hz to 20MHz
l Automatic frequency control (AFC) for automatic tracking of received signals within the demodulation bandwidth
l Gain control allows users to get the best demodulation in complex environments; gain control switches between automatic gain control (AGC) and manual gain control (MGC)
l CW demodulation with BFO function, it is a secondary oscillator to recover CW carrier, BFO frequency range is 0~±8kHz
Manual Radiation Source Direction Finding by Directional Antenna
l 9kHz-20MHz, 20MHz-200MHz, 200MHz-500MHz, 500MHz-8GHz directional antenna full-band coverage
l Reflect 360-degree signal intensity distribution in compass mode, automatically indicating the maximum intensity direction
l Support digital map function for easy outdoor source search
l Directional, spectrum, digital map multi-window parallel display
l Intelligent control of antenna handle for user convenience
Automatic Radiation Source Direction-find through Multi-element Directional Antenna
l 20MHz-1.3GHz, 700MHz-6GHz multi-array DF antenna with single channel correlation interferometer algorithm for direction finding
l DF maximum bandwidth 20MHz, direction finding accuracy is better than 2RMS°
l Fastest direction of 30ms/time, with level threshold for direction finding of abnormal signals
l Support digital map function for easy outdoor source search
l Directional, spectrum, digital map multi-window parallel display
Radiation Source Positioning Function
l Positioning the radiation source based on the direction finding result
l Direction finding results, positioning results can be visually displayed on a digital map
TYPICAL APPLICATIONS
Typical Application
Radio Spectrum Monitoring
3943B can be applied to the radio regulatory department, using the various scanning methods of the receiver to conveniently carry out the daily supervision business recommended by ITU.
Interference Source Lookup
The 3943B panoramic scanning function can quickly detect the interference caused by illegal radio stations, interference sources, sudden transmission, etc., and quickly locate the interference source through horizontal scanning or DF direction finding function.
Radio Service Coverage Test
The actual coverage of the radio service is an important part before the service is launched. The 3943B can be used to easily implement the actual road test of the service signal and quickly complete the service coverage.
Site/mobile Station and other Site Selection Tests
Before the deployment of mobile stations, reconnaissance positions, etc., the location selection is very important. It is convenient to carry out field test using 3943B, and obtain on-site electromagnetic spectrum data to assist location decision.
Computer Security Assessment
Using the computer video leakage information detection and restoration function of 3943B, the information leakage during the process of computer video signal transmission can be detected, and the original display image can be restored to reflect the computer security status intuitively and truthfully.
Important Location Stealing Inspection
Whether it is commercial competition or espionage, there is a clear upward trend. Anti-stealing will become more and more important. You can use the 3943B to easily conduct confidential inspections on important places and eliminate wireless stealing equipment.
Major Event Radio Security
The 3943B is small in size and light in weight. It is especially suitable for performing radio security tasks in major activities, quickly discovering hidden dangers and ensuring the normal operation of radio frequency equipment.
Communication Signal Reconnaissance
As the core receiving device, 3943B can be applied to the field of communication intelligence reconnaissance to realize real-time monitoring of communication signals. Using the control interface of 3943B, the IQ data in the analysis bandwidth can be obtained for the user's required intelligence analysis.
Typical (typ): Indicates typical performance that can be achieved with 80% of the instrument; this data is not guaranteed and does not include uncertainties in the measurement process, only valid at room temperature (about 25 ° C).
Rating (nom): Indicates the expected average performance or design performance characteristics, such as a 50 Ω connector.The measured values are not guaranteed data and are measured at room temperature (approximately 25 ° C).
Meas (meas): Indicates the performance characteristics measured during the design phase, such as amplitude drift over time, for comparison with expected performance.This data is not guaranteed and is measured at room temperature (approximately 25 °C).
| Technical indicators | |
| Model | 3943B |
| Frequency Range | 9kHz～8GHz |
| Maximum linear operating input level |
-13dBm, 9kHz～30MHz +3dBm, 20MHz~3.6GHz (low distortion mode) -24dBm, 20MHz~3.6GHz (low noise mode) -24dBm,3.6GHz～8GHz |
| RF input port voltage standing wave ratio |
＜2.5, 9kHz～5.8GHz ＜4.0, 5.8GHz～8GHz |
| Display average noise level (spectral channel) |
≤ -125dBm,9kHz～100kHz ≤ -151dBm,100kHz～1MHz ≤ -155dBm,1MHz～20MHz ≤ -154dBm, 20MHz~80MHz (low noise mode) ≤ -160dBm, 80MHz~1.5GHz (low noise mode) ≤ -155dBm, 1.5GHz~3.6GHz (low noise mode) ≤ -128dBm, 20MHz~3.6GHz (low distortion mode) ≤ -158dBm,3.6GHz～5.8GHz ≤ -154dBm,5.8GHz～7.5GHz ≤ -151dBm,7.5GHz～8GHz |
| Phase noise |
Carrier 21MHz <-115dBc/Hz, 10kHz frequency offset <-117dBc/Hz, 100kHz frequency offset Carrier 500MHz, <-95dBc/Hz, 10kHz frequency offset <-95dBc/Hz, 100kHz frequency offset Carrier 3.4GHz, <-92dBc/Hz, 10kHz frequency offset <-92dBc/Hz, 100kHz frequency offset |
| AM Demodulation sensitivity |
≤ -105.5dBm,9kHz～30MHz ≤ -110dBm,20MHz～1.5GHz ≤ -106dBm,1.5GHz～3.6GHz ≤ -102dBm,3.6GHz～8GHz |
| FM Demodulation sensitivity |
≤ -103dBm,9kHz～30MHz ≤ -111dBm,20MHz～1.5GHz ≤ -107dBm,1.5GHz～3.6GHz ≤ -102dBm,3.6GHz～8GHz |
| Third-order interception point |
> +18dBm,9kHz～30MHz > -10dBm, 20MHz~650MHz (low noise mode) > -11.5dBm, 650MHz~2.5GHz (low noise mode) > -8dBm, 2.5GHz~3.6GHz (low noise mode) > +15dBm, 20MHz~1.5GHz (low distortion mode) >+15dBm, 1.5GHz~3.6GHz (low distortion mode) > -8dBm, 3.6GHz~4.7GHz >-6dBm,4.7GHz～8GHz |
| Image Rejection(1) |
>90dB, 20 MHz to 3.6 GHz (low noise mode) >80dB, 20 MHz to 3.6 GHz (low distortion mode) >70dB, 3.6 GHz to 8 GHz |
| Image Rejection(2) |
>60dB,20 MHz to 3.6 GHz (low noise mode) >60dB,20 MHz to 3.6 GHz (low distortion mode) >70dB, 3.6 GHz to 8 GHz |
| Intermediate frequency suppression |
>80dB, 20 MHz to 3.6 GHz (low noise mode) >65dB, 20 MHz to 3.6 GHz (low distortion mode) >90dB, 3.6 GHz to 8 GHz |
| Local oscillator re-radiation | <-89dBm |
| Panoramic scan rate | >2GHz/s |
| Amplitude accuracy |
Better than ±1.5dB (+15°C~+35°C) Better than ±3dB (0°C~+50°C) |
| Analysis bandwidth | 20MHz |
| IF spectrum display range | 1kHz,2kHz,5kHz,10kHz,20kHz,50kHz,100kHz,200kHz,500kHz,1MHz,2MHz,5MHz,10MHz,20MHz |
| Demodulation bandwidth |
100Hz,150Hz,300Hz,600Hz,1kHz,1.5kHz,2.1kHz,2.4kHz,2.7kHz,3.1kHz,4kHz,4.8kHz, 6kHz,9kHz,12kHz,15kHz,30kHz,50kHz,120kHz,150kHz,250kHz,300kHz,500kHz,800kHz, 1MHz,1.25MHz,1.5MHz,2MHz,5MHz,8MHz,10MHz,12.5MHz,15MHz,20MHz |
| Demodulation mode | AM, FM, PM, CW, LSB, USB, ISB, PULSE, IQ |
| Dimensions | Width × Height × Depth = (289±1.2)mm × （182.5±1.2）mm × （69±0.8）mm (without hand strap) |
| Weight | <3.5kg (with battery and hand strap) |
| Power supply |
Battery powered and power adapter powered Power adapter input nominal value: AC 100~240V, 50~60Hz |
| Power consumption | Less than 30w |
| Temperature range |
Working temperature: 0°c ~ +50°c Storage temperature: -40°c ~ +70°c |
| Input connector | N type (female), impedance 50Ω |
Ordering Information
Host: 3943B Monitoring Receiver 9kHz ~ 8GHz
Standard:
| Serial number | Name | Description |
| 1 | Power cord assembly |
Standard three-core power cord 18v power adapter (3.6A) Rechargeable lithium ion battery |
| 2 | User manual |
|
| 3 | Program manual |
|
| 4 | Certificate |
|
Option:
| Option number | Name | Features |
| 3943B-001 | Panoramic scan option | Panoramic scan function for wide frequency range scanning for fast signal discovery |
| 3943B-002 | Horizontal scanning option | Horizontal scanning function, combined with 014 option to measure the radiation source |
| 3943B-003 | Field strength measurement option | The field strength of the measured signal is obtained by the preset antenna factor table in the device and displayed directly on the device. |
| 3943B-004 | Video restore option | Image restoration of computer HDMI video leak signal |
| 3943B-005 | Signal recording and playback options | The measurement data (spectrum, I/Q, audio) can be stored on the SD card or in the internal memory to play back the recorded spectrum and audio data (optional 008 option is required) |
| 3943B-006 | Map option | Display the current test position on the map, and combine the 002 option or 016 option to locate the radiation source (optional 008 option is required) |
| 3943B-007 | GPS Beidou option | External antenna (BNC), built-in GPS module and software |
| 3943B-008 | Micro SD card | Class10, capacity 128G, with 005, 006 options |
| 3943B-009 | External attenuator 71512 | 10dB attenuation, maximum input power 2W |
| 3943B-010 | External attenuator 71512A | 20dB attenuation, maximum input power 2W |
| 3943B-011 | External attenuator 71512B | 30dB attenuation, maximum input power 2W |
| 3943B-012 | External attenuator 71512C | 40dB attenuation, maximum input power 2W |
| 3943B-013 | External attenuator 71522D | 40dB attenuation, maximum input power 25W |
| 3943B-014 | Handheld directional antenna | Includes antenna handle (integrated GPS and electronic compass), four directional antenna modules (9kHz-30MHz, 20MHz-200MHz, 200MHz-500MHz, 500MHz-8GHz) and transport case. |
| 3943B-016 | Direction finding option | Upgrade 3943B to a direction finding receiver |
| 3943B-017 | Direction finding antenna 1 | 20MHz-1.3GHz |
| 3943B-018 | Direction finding antenna 2 | 700MHz-6GHz |
| 3943B-020 | Metal shell construction product(without display screen) | can be changed into a structure suitable for system rack installation; This option can not be used at the same time because it interferes with the injection molding case of the main engine |