APVSG04-X Multi-Channel Vector Signal Generator

The APVSG04-X is a multi-output ultra-agile fast-switching vector-modulated signal source, covering a continuous frequency range with models ranging from 10 MHz to 4 (optionally to 6) GHz. APVSG-X with 1, 2, 3 or 4 channels is mounted in a 19‘‘ 1U enclosure (426 x 460 x 43 mm [16.8 x 18.1 x 1.7 in], 10 kg). Each output can be programmed independantly in frequency, power, phase and modulation. The outputs are phase-coherent with excellent phase stability.

The standard APVSG04-X enables outstanding ultra-fast CW frequency sweeping, chirping, intra-pulse modulations, pulse shaping, all with very low phase noise. Per channel, a high performance internal I/Q modulator enables customized modulation waveforms and supports dedicated modulation schemes, including avionics modulation.  

The APVSG04-X is a multi-output version of an ultra-fast-switching vector signal generator, covering a continuous frequency range from 10 MHz  to 4 (optionally 6) GHz. The APVSG04-X enables outstanding ultra-fast phase-synchronous frequency sweeps, chirping, intra-pulse modulations, pulse shaping, all with very low phase noise. For each output, a high performance internal I/Q modulator enables independant customized modulation waveforms and supports dedicated modulation schemes. The device can be easily controlled  remotely accessed via Ethernet and USB using standard SCPI command language. A PC based graphical user interface (GUI)  is supplied to control the device and provide a easy-to-use interface for uploading pre-calculated IQ data files. The GUI supports various file formats including a propriatary IQ data file format.

The APVSG-X with 1, 2, 3 or 4 channels is mounted in a 19‘‘ 1U enclosure (426 x 460 x 43 mm [16.8 x 18.1 x 1.7 in], 10 kg).

The key features are:

  • high RF signal bandwidth: using a dual, arbitrary waveform generator operating at 500 MHz for I/Q signal generation. The generator has built-in support for the common vector modulation schemes and it provides direct support for the controlled injection of additive white Gaussian noise (AWGN) into the signal path.
  • outstanding signal purity of modulated signals: lowest phase noise (-145 dBc/Hz at 1 GHz and 20 kHz offset), low spurious and excellent harmonic rejection
  • excellent EVM and ACPR performance
  • full set of built-in analog modulations like AM, FM, PM, Pulse
  • ultra-narrow pulse trains (< 5 ns), linear and non-linear pulsed frequency chirps
  • built-in digital modulation schemes like FSK, PSK, ASK, QAM
  • ultra-fast hopping and sweeping capability (update frequency, power and phase in below 200 ns)
  • powerful trigger system including multiple markers and input triggers.
  • fast control port (FCP) (parallel BCD interface) for fast external signal control
  • security: external microSD available

The applications include:

  • compact ultra-high performance vector signal generator IQ data streaming
  • phase coherent independantly programmable multi output configurations for phase array and antenna beamforming
  • simulation of complex signal environments for radar, electronic warefare (EW) and antenna tests

The APVSG is designed for high reliability and fast, easy calibration, service, and repair. The modular system assembly simplifies repair and guarantees low maintainance costs.

Frequency Range

0.01 GHz to 4, 6, 20 or 40 GHz

Frequency Resolution

0.001 Hz

Output Power

-60 to +20 dBm

Switching Speed

200ns (list mode)

Phase Noise At 1 GHz: at 10 Hz

-90 dBc/Hz

Phase Noise At 1 GHz: at 1 kHz

-132 dBc/Hz

Phase Noise At 1 GHz: at 20 kHz

-144 dBc/Hz

Phase Noise At 1 GHz: at 100 kHz

-148 dBc/Hz

Remote Control

Ethernet, GPIB, USB (SCPI v1999)

Modulation

FSK, PSK, ASK, QAM, I/Q, Pulse, Pulse trains, pulsed Chirps, wideband FM/PM

Sweeps

Complex lists, frequency/power/phase

Dimensions (W x L x H), Weight

173.6 x 291.7 x 116.9 mm [6.83 x 11.48 x 4.60 in], 2.5 kg

# of channels

2, 3, 4

Features

• Excellent phase noise performance and low spurious
• Ultra-fast switching and frequency hopping ( <150 ns frequency, amplitude, and phase update rate)
• 500 MS IQ data rates, up to 256 MS deep internal playback memory
•  Various digital modulation supported (PSK,FSK,FSK,QAM)
• 10 ns minimum pulse width, >80 dB on/off ratio
• Linear/nonlinear chirp

 

Applications

• Arbitrary I/Q waveform playback
• Radar signal simulation
• Component, module, or sub-system chracterization
• Avionic modulation emulation
• High speed antenna testing

Options

LN Enhanced close in phase noise & frequency stability
UFS Ultra-fast swiching speed
FCP Fast control port
MOD Full range Analog modulation capability
IVM Internal digital modulation schemes
AVIO Avionics (DME, VOR, ILS)
VREF Variable external reference
FLASH MicroSD card slot for removable microSD
WE One year warranty extension (standard: 2 years)
EIQ external analog IQ inputs
APVSG04-2 0.01 GHz to 4 GHz, 2-channel 19‘‘ 1U enclosure
APVSG04-3 0.01 GHz to 4 GHz, 3-channel 19‘‘ 1U enclosure
APVSG04-4 0.01 GHz to 4 GHz, 4-channel 19‘‘ 1U enclosure
APVSG06-2 0.01 GHz to 6 GHz, 2-channel 19‘‘ 1U enclosure
APVSG06-3 0.01 GHz to 6 GHz, 3-channel 19‘‘ 1U enclosure
APVSG06-4 0.01 GHz to 6 GHz, 4-channel 19‘‘ 2U enclosure
APVSG20-2 0.01 GHz to 20 GHz, 2-channel 19‘‘ 1U enclosure
APVSG20-3 0.01 GHz to 20 GHz, 3-channel 19‘‘ 1U enclosure
APVSG20-4 0.01 GHz to 20 GHz, 4-channel 19‘‘ 2U enclosure
APVSG40-2 0.01 GHz to 40 GHz, 2-channel 19‘‘ 1U enclosure
APVSG40-3 0.01 GHz to 40 GHz, 3-channel 19‘‘ 1U enclosure
APVSG40-4 0.01 GHz to 40 GHz, 4-channel 19‘‘ 2U enclosure

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