Complaint
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. With multiple functions such as radio signal search, interception, measurement, analysis, demodulation, direction finding, positioning, etc., it can be used to perform emission monitoring, coverage measurement, illegal emission source/interference source rapid detection and positioning, and major activities that comply with ITU specifications Radio security and other tasks. The whole machine adopts a full touch screen design, and the software supports multi-touch interactive mode. The touch operation experience of the smart phone is completely transplanted to the monitoring receiver device. The users can conveniently complete the display trajectory zoom in, zoom out, window movement, parameter setting and other operations through touch gestures, providing a user-friendly UI interface to the greatest extent, so that the user can operate the monitoring receiver just like using a mobile phone or a pad computer.
Wide monitoring frequency range (9kHz~8GHz) and direction finding frequency range (20MHz~6GHz) to meet current and future radio service signal reception
Provide a maximum 20MHz analysis bandwidth, even a wide spectrum of short pulses or bursts can be detected and analyzed
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.
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.
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.
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
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.
specifications
Technical Specifications
| 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 |
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.
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.
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 cover
