R&S®EM010 VXI HF Receiver

Efficient and versatile solution for radiomonitoring systems

Operation

Fixed frequency mode (FFM)

The fixed frequency mode is the standard mode of the receiver. A fixed frequency is set at which the signal is received, filtered and demodulated. The following parameters can be set:

  • Frequency: can be set in 1 Hz steps in the range 10 kHz to 30 MHz (300 Hz to 30 MHz with option EM010LF)
  • Demodulation mode: AM, FM, USB, LSB, CW, ISB
  • Bandwidth: IF bandwidths are valid for the analog IF output and the AF; selectable in 70 steps between 52 Hz and 20 kHz
  • BFO frequency: can be set in 1 Hz steps in the frequency range ±10 kHz
  • Squelch: either syllabic or level squelch can be selected (level squelch settable in 1 dB steps in the range –20 dBuV to +100 dBuV)
  • Preamplifier: can be switched on or off
  • Gain control: automatic (AGC) or manual (MGC) gain control can be selected (with AGC, the hold time can be set in steps of 10, 20, 50, 100, 200, 500, 1000, 5000 and 9000ms; with reception via the VLF input only MGC can be used)
  • Notch filter: two notch filters can be selected independently of each other (stopband limits settable in 1 Hz steps from 50 Hz to 500 Hz, which are converted in the receiver to 28 steps; the minimum stopband attenuation is 40 dB with 80 Hz filter bandwidth)