| Product features
With a standard 19-inch rackmount instrument structure and the functions of broadband vector signal generator and broadband vector signal analysis, the RF signal acquisition, memory and playback instrument (KSW-VST01A) has a high-speed data transmission interface and an extensible deep memory space, so that it can be used in various application scenarios such as signal acquisition, memory, analysis and generation, covering the fields of RF microwave chip research and development verification, mass production test, base station terminal test, etc., and can also be used for radio spectrum monitoring and sampling, signal and spectrum resource analysis, interference release, etc. The main features of RF signal acquisition, memory and playback instrument are as follows:
1) Transmitting and receiving of broadband RF signals by a single instrument
2) Continuous recording and playback of broadband signals
3) Acquisition and import of signal files with high-speed data transmission interface.
4) On-line and off-line signal analysis and identification
5) Signal generation of universal radio system
6) Interference signal generation
7) Various configuration options, including frequency, quantity, power, dynamic range, memory depth, etc. of transceiver channels
| Function overview
● Broadband signal acquisition and memory
1) Set the center frequency and bandwidth of the signal to be collected, configure the receiving channel by AGC or MGC, and adjust the power of the collected signal to an appropriate size.
2) Start signal acquisition, and store the acquired data into a high-speed memory disc in the form of a file.
● Import and export of signal data files
1) Interface provided through the main control board inside the instrument
- 10 Gigabit Ethernet
- Gigabit Ethernet
- USB
2) Interface provided through the 10 Gigabit network interface board
3) Gigabit Ethernet interface provided by high-speed memory inside the instrument
● Signal monitoring and identification analysis
1) Set the working frequency band, observe the signal spectrum, and select the frequency band required for signal identification and analysis
2) Collect signals according to the collected bandwidth capacity, and send the collected data to identification and analysis software for identification and analysis
3) Display the obtained equipment analysis results, including modulation mode and bandwidth
● Memory data preview and offline analysis
1) Spectrum preview is available for data files stored in high-speed memory disc
2) Select the data file in the high-speed memory disc, and click Preview and Playback to see the spectrum diagram of the signal in the display interface
-The playback progress can be adjusted
-The playback speed can be adjusted
● RF playback
1) Set the signal frequency and power. The sample rate of signal playback can be adjusted to change the signal bandwidth
2) Select the data file to be played back from the high-speed memory and start playing back the data
3) The data is processed and sent to DAC, and then output after filtering and power adjustment
● Signal measurement functions
1) Spectrum measurement and display
2) Marker marking points
3) Channel power test
4) Adjacent channel power test
5) Vector signal analysis-EVM, constellation map, phase error, amplitude error, quadrature distortion, carrier feedthrough, gain imbalance, SNR, Eb/N0, carrier frequency error and carrier amplitude
| Typical applications
● Spectrum monitoring scenarios
1) Monitor the radio signals out the field and show the usage of spectrum resources in the current working environment
2) Conduct on-line signal analysis, including spectrum diagram, waterfall plot, channel power measurement, etc.
3) Collect and store radio signals, and analyze them offline afterwards
4) Store data preview
5) Provide signal identification function, analyze and display signal modulation mode, bandwidth, symbol rate and other characteristic parameters.
6) Provide vector signal analysis function to analyze and display signal constellation map, EVM, SNR and other characteristic parameters
7) Conduct spectrum resource statistics, and provide frequency suggestions through analysis
● Signal monitoring interference scenarios
1) Monitor and analyze radio signals, and analyze parameters such as signal type, modulation style, signal intensity and signal bandwidth
2) Generate several interference signals with various modulation modes
3) Provide various interference patterns
4) Guide interference through monitoring results
5) Applicable to scenarios where interference needs to be released, and outfield or infield tests to verify the anti-interference characteristics
| Device Composition Block Diagram
| Main technical indicators
Conventional indicators |
Indicator item | Indicator characteristic |
Frequency range | 1.5MHz~6GHz | 1.5MHz~20GHz | 1.5MHz~40GHz |
Number of independent transmitting and receiving channels
(T: transmitting; R: receiving) | 2T2R; 2T1R; 1T2R; 2T;
2R; 1T1R; 1T; 1R | 1T1R; 2T; 2R; 1T; 1R | 2T; 1T; 1R; 1T1R |
Frequency step | 1Hz |
Frequency accuracy | 1x10-7 |
Acquisition signal power range | -115dBm~+5dBm |
Maximum anti-damage level | +30dBm |
Acquisition gain adjustment range | -20dB~+80dB |
Acquisition gain adjustment step | 0.5dB |
Receive IF rejection | ≥65dB |
Receive image rejection | ≥65dB |
Receive IF output spurious suppression | ≥60dB |
Receive IF output harmonic suppression | ≥40dB |
Receive noise coefficient | ≤6dB | ≤8dB | ≤10dB |
Playback output power range | +10dBm~-120dBm |
Playback output power range (high power option) | +20dBm~-110dBm |
Playback output power step | 0.1dB |
Playback output power accuracy | ≤ 1 dB@ output power ≥ -100 dBm |
| ≤ 2 dB@ output power ＜ -100 dBm |
Playback output spurious suppression | ≥ 55 dB@ output frequency ≤ 3 GHz |
| ≥ 45 dB@ output frequency ＞ 3 GHz |
Playback output harmonic suppression | ≥ 25 dB@ output frequency ≤ 5 MHz |
| ≥ 35 dB@ output frequency ＞ 5 MHz |
Maximum signal bandwidth | Opt1: 160 MHz, support dual-channel
Opt2: 640 MHz@ single channel,
320 MHz@ dual-channel
Opt3: 1GHz@ single channel,
500MHz@ dual-channel | Opt1: 160 MHz, support dual-channel
Opt2: 640 MHz@ single channel,
320 MHz@ dual-channel
Opt3: 1GHz@ single channel,
500MHz@ dual-channel | Opt1: 160 MHz, support dual-channel
Opt2: 640 MHz@ single channel,
320 MHz@ dual-channel
Opt3: 1GHz@ single channel,
500MHz@ dual-channel |
|
|
|
|
|
|
|
|
Maximum bandwidth and frequency | 160kHz: 1M-40G; 2MHz: 5M-40G; 10MHz: 100M-40G;
100MHz: 250M-40G; r 300MHz: 1G-40G; 1GHz: 2G-40G |
Bandwidth and bit width | 12bits@ single channel 1 GHz/ dual-channel 500 MHz
14bits@ single channel 640 MHz / dual-channel 320 MHz
14bits@ dual-channel 160 MHz |
Signal bandwidth | 5MHz, 10MHz, 20MHz, 40MHz, 80MHz, 160MHz, 320MHz, 500MHz,
640MHz, 1GHz |
Cabinet configuration and maximum memory space | 12TB@2T2R, 14-slot cabinet
36TB@2T1R, 14-slot cabinet
12TB@1T2R, 14-slot cabinet
60TB@2T, 14-slot cabinet
24TB@2T, 8-slot cabinet
24TB@2R, 14-slot cabinet
36TB@1T1R
18TB@1T, 8-slot cabinet
60TB@1T, 14-slot cabinet
12TB@1T, 8-slot cabinet
48TB@1T, 14-slot cabinet | 12TB@1T1R, 14-slot cabinet
24TB@2T, 14-slot cabinet
12TB@2R, 14-slot cabinet
12TB@1R, 8-slot cabinet
48TB@1R, 14-slot cabinet
12TB@1T, 8-slot cabinet
48TB@1T, 14-slot cabinet | 24TB@2T, 14-slot cabinet
48TB@1T, 14-slot cabinet
12TB@1T, 8-slot cabinet |
Continuous memory read-write speed | 3.6GByte/S |
Maximum data size of a single signal | 6TB |
Standing wave ratio | ≤ 1.5:1@ frequency ≤ 6 GHz
≤ 1.8:1@ frequency 6 GHz - 20 GHz
≤ 2.0:1@ frequency 20 GH - 40 GHz |
|
|
|
|
Trigger signal input and output | Support |
Trigger signal level | 3.3V TTL |
External reference | 5 to 100 MHz, 0 to +5dBm |
Main control CPU | Intel 6th Generation I7 Processor |
Master memory | DDR4 16GB |
Master hard disk | SSD(250GB mSATA/2TB NVME) |
Display | 10.1-inch touch screen |
External interface | Gigabit Ethernet (1); USB 3.0 (2); USB 2.0 (2); HDMI (1); Opt: 10 Gigabit Ethernet (1) |
Power supply | 220V /50Hz |
Waveform indicators |
Signal generation mode | Arbitrary waveform generation and real-time generation |
Real-time generation modulation mode | SSB, AM, FM, ASK, 2FSK, 4FSK, 8FSK, MSK, GMSK, BPSK, QPSK,
8PSK, 16QAM, 64QAM |
Signal patterns | Fixed frequency and hopping frequency |
Frequency hopping rate | 100,000 hops/sec @ within the maximum bandwidth |
| 5,000 hops/sec @ within other hopping frequency range |
Frequency hopping period | 10 uS-10 S@ within the maximum bandwidth |
| 200 uS-10 S@ within other hopping frequency range |
Pulse modulation | Support |
Pulse width | 100nS~10S |
Interference indicators |
Interference mode | Barrage jamming, spot jamming, tracking jamming and forwarding jamming |
Interference pattern | Single carrier, noise, comb spectrum, pseudo-code modulation |
Interference system | Hopping frequency and fixed frequency |
Maximum frequency hopping speed of tracking interference | 2,000 hops/s |
Working bandwidth of tracking jamming | 160 MHz, 640 MHz, 1 GHz |
Instantaneous bandwidth of jamming signal | 48 KHz - maximum bandwidth (160 MHz, 640 MHz, 1 GHz) |
Instantaneous bandwidth adjustment step of jamming signal | 1kHz |
Number of comb interference signals | 1~500 |
Sweep jamming step | 1kHz |
Maximum sweep frequency speed of sweep jamming | 10 uS/ frequency point @ within the maximum instantaneous bandwidth |
| 200 uS/ frequency point @ within the arbitrary frequency range |
Forward interference delay range | 5uS~300mS |
Forward interference delay modulation step | 10nS |
Signal identification indicator |
Modulation signal type of identification | AM, FM, BPSK, QPSK, 8PSK, 8QAM, 16QAM |
Inspection accuracy | ≥90%@C/N≥5dB |
Signal bandwidth identification | 12kHz~40MHz |
Omission rate | ≤5%@C/N≥5dB |
False alarm rate | ≤5%@C/N≥5dB |
Carrier type identification accuracy | ≥90%@C/N≥10 dB, continuous carrier, TDMA burst carrier, aliasing carrier and DVB-S2 carrier signal |
Modulation identification accuracy | ≥ 90% (BPSK: C/N ≥ 5 dB, QPSK: C/N ≥ 6 dB, OQPSK: C/N ≥ 5 dB,
π/4QPSK: C/N ≥ 6 dB, 8PSK: C/N ≥ 12 dB, 16QAM: C/N ≥ 12 dB |
Carrier frequency measurement accuracy | Better than the symbol rate of 1x10-4 (under the condition that C/N≥10 dB and typical signal bandwidth is not less than 100 KHz). |
Symbol rate measurement accuracy | Better than the symbol rate of 1x10-4 (under the condition that C/N≥10 dB and typical signal bandwidth is not less than 100 KHz). |
Aliasing signal identification probability | Better than 90% (under the condition that the aliasing signal C/N is ≥15 dB and the carrier power difference is ≤5 dB) |
Identifiable modulation patterns of aliasing signals | QPSK, 8PSK, 16QAM (under the condition that the aliasing signal C/N ≥ 15 dB and carrier power difference ≤ 5 dB) |
Modulation pattern identification accuracy rate of aliasing signals | Better than 90% (under the condition that the aliasing signal C/N is ≥15 dB and the carrier power difference is ≤5 dB) |
Demodulation bit error rate of typical communication signal | ≤1X10-3 (BPSK: C/N≥9dB, QPSK: C/N≥12dB, OQPSK: C/N≥12dB, π/4QPSK: C/N≥13dB, 8PSK≥17dB, 8QAM: C/N≥16dB, 16QAM: C/N≥18dB) |
Code identification accuracy | ≥90% (for self-synchronous scrambling code, LDPC, RS, TPC, TCM and convolutional code under the condition that the demodulation bit error rate is 1x10-3) |
Code identification type | 48 |
Channel decoding accuracy | Better than 1x10-5 (for BCH, RS, Turbo, LDPC, TCM, TPC and convolutional codes under the condition that the demodulation bit error rate is less than 1x10-3) |
Channel decoding type | 48 |
| Software interface screenshot
Storage management
Software playback file selection
Monitoring and identification