R&S®EK896 VLF-HF Receiver

19" DSP-based receiver for radiomonitoring and detection, radiocommunication, master receiver for radio workstations

This is a discontinued product
Please note the following successor product(s):
Type
Designation
Base Unit
  • VLF-HF Receiver

    19" DSP-based receiver for radiomonitoring and detection, radiocommunication, master receiver for radio workstations

Hardware Options
  • R&S®UX-895
    IF Converter

    The IF Converter R&S UX895 is a submodule for the IF/AF (DSP) processor. Instead of the analog IF output (0 Hz to 40 kHz) the IF Converter R&S UX895 linearly converts the set receive parameters to the IF of 455 kHz (100 kHz output frequency on request). This option allows connection of external signal processing units/analyzers operating with an input frequency of 455 kHz.

  • R&S®FK-890H1
    Input Filter Unit

    The input filter module comprises a lowpass filter, a bandpass filter and eight suboctave filters which are automatically selected with the receive frequency. It is also equipped with a signal input protection up to 30 V EMF (for the HF bands). The input filter unit has a very low insertion loss (≤1 dB) and an excellent large-signal behaviour matching with the receiver (no inherent distortion/hysteresis). The input filter unit is recommended to ensure unimpaired reception in an environment subject to RF interference (collocation). In this case, unwanted (interfering) frequency ranges are strongly suppressed.

  • R&S®GC-890
    BCD Interface

    The BCD interface provides the current receive frequency information with a resolution of 100 Hz to a parallel BCD output. This frequency information can be used to control external frequency dependent add-on units such as tuned Selection R&S FK101 or tuned active Antenna System R&S AK001. This option needs an additional output connector at the rear of the receiver (BCD interface).

  • R&S®GH-890
    TTY Line Current Source

    This option supplies the line current (40 mA at 60 V, or ±20 mA at ±30 V) required for direct connection of teletype units provided that FSK/AFSK demodulation (e.g. with R&S GM890) – standard for the R&S EK895/896 – is given. This option is recommended for the connection of older teletype units which still need line current. It is not required for modern teletype units that are operated under V.28 or TTL control.

  • R&S®FK-896D
    Digital Selection

    This option is available in two versions, providing 20 dB or 40 dB selectivity. The automatically tuned, tracking selection circuit incorporates the following functions: The digital selection is recommended for use in environments with strong RF interference (i.e. collocation problems). It improves input selection by automatic tracking of the receive frequency and increases the input voltage protection (overload protection) of the receiver.

  • DATA LINK demodulator

    This software option is used for the demodulation of DATA LINK emissions according to MIL-STD-188-203-1. Further information supplied on request.

  • R&S®EK895S7
    Quasicontinuous IF Bandwidth Control

    This software option allows the fine selection of the IF bandwidth between 100 Hz and 9 kHz in 128 steps and thus permits optimization of the bandwidth required for the different types of modulation or of the adjacent-channel suppression. This option provides either 13 (standard) or 128 bandwidths. The advantage lies – especially important for radiodetection and analyzing receiving equipment – in the optimum S/N ratio setting for the signal received and demodulated. The optimum bandwidth can be stored with DEF OFF and is then automatically set again depending on the modulation type. This option has to be indicated when ordering the relevant receiver (factory installation).

  • R&S®GM893
    Broadband Output

    The optional broadband output (plug-in module) supplies an approx. 1 MHz bandwidth signal at the first IF of 41.44 MHz (at the receive frequency ±500 kHz). To avoid impairment of the receiver sensitivity of the main (information) channel, the path to the broadband channel is decoupled by approx. 10 dB. For broadband spectrum analysis, different spectrum displays can be connected to this broadband output.

  • Oven-controlled crystal oscillator (OCXO)

    To obtain a higher frequency stability of the receiver, an OCXO module can be incorporated into the synthesizer instead of a standard crystal oscillator (TCXO). This option has to be indicated when ordering the relevant receiver (factory installation).

Accessories
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