Brief
Finding principle YJREC-001 multi-channel Digital receiver is known coordinates multi-element antenna array, or to wave parameter measuring unit pluralistic wave field, through multi-channel Receiving machine Frequency conversion, amplification, to obtain the vector signal, sampling quantized digital signal array, gave spatial spectrum estimator, using a deterministic algorithm to determine the direction of each wave wave, elevation, polarization and other parameters.
YJREC-001 multi-channel direction finding technology Digital receiver can be achieved using several coherent wave while finding; can be achieved on multiple signals in the same channel, while there, but finding; can achieve super-resolution direction finding; only requires very little signal sampling, to be able to accurately measure; can achieve high sensitivity and high DF DF accuracy; finding less demanding site environment, it can achieve the flexibility to select the directional characteristics of the antenna elements and array element location of your choice .
Technical index
| No. |
Technical parameters |
Technical index |
| 1 |
Frequency range |
20MHz ~ 3000MHz |
| 2 |
Max Input power |
+ 20dBm
+ 30dBm (Start Input attenuation) |
| 3 |
frequency resolution |
10Hz |
| 4 |
frequency accuracy |
≤ 1X10-7 |
| 5 |
External reference Input |
10 MHz |
| 6 |
frequency synthesizer setting time |
≤5 ms |
| 7 |
Scan speed |
≥3G / s (frequency resolution 12.5KHz) |
| 8 |
Local oscillator Phase noise |
≤-100dBc / Hz @ 10KHz |
| 9 |
Sensitivity |
≤-95dBm |
| 10 |
Gain control |
AGC, MGC
≥60dB, Stepping 1dB |
| 11 |
Input third-order intercept point |
≥ + 8dBm (normal mode)
≥ + 17dBm (low distortion mode) |
| 12 |
Noise factor |
<15dB |
| 13 |
Intermediate frequency suppression |
≥90dB |
| 14 |
Mirror frequency suppression |
≥90dB |
| Fifteen |
Intermediate frequency frequency |
70MHz |
| 16 |
Intermediate frequency Output Bandwidth |
20MHz / 2MHzoptional |
| 17 |
Number of ADC acquisition channels |
5 + 1 channels |
| 18 |
ADC resolution |
16 |
| 19 |
Sampling speed |
100MHz |
| 20 |
Digital Filter |
Variety: 1KHZ to 20MHZ |
| twenty one |
DDC Output |
Can be parameterized configuration options, support for I, Q Output, support polar coordinates Output (amplitude and phase information) |
| twenty two |
Demodulation |
Can be realized AM, FM, USB, LSB, CW, ASK, FSK, QAM, PSK demodulation |
| twenty three |
ITU measurement parameters |
Frequency shift modulation positive peak, negative peak modulation, modulation rms, phase deviation, frequency offset positive peak, negative peak frequency deviation, frequency rms |
| twenty four |
Machine work mode |
Normal, Low Noise, Low Distortion |
| 25 |
interface type |
N or SMA |
| 26 |
Power supply |
AC220V ± 10% |
| 27 |
Working temperature |
-25˚C ~ +50 ˚C |
Main components
YJREC-001 multi-channel Digital receiver made a monitoring channels +5 finding channel configuration, integrated chassis design, Radio frequency, Intermediate frequency, digital processing unit and the like mounted in the two chassis. Application fields
■ Radio Measurement
■ Radio Monitoring
■ VHF Stations
■ Spectrum allocation analysis
■ Aviation Electromagnetic Environment Monitoring
■ strategic and tactical reconnaissance systems
■ Radio Stations interference positioning
■ Radio Monitoring Radio
|
.jpg){kind=small}