Spectrum analyzer - ErikS-web/Wiki-test GitHub Wiki

Spectrum Sweep screen

Press F + 5 NOAA to turn on the Spectrum analyzer.

The current VFO/Memory frequency is the start frequency of the spectrum sweep

Spectrum analyzer

Button functions

  • 1 / 7 - increase/decrease the channel separation of a single bar in the graph (typically 25.0 kHz)
  • 4 - changes the number of channels to scan and toggles number of bars in the graph (typically 128x)
  • 2 / 8 - increase/decrease frequency step size for UP/DOWN
  • 5 - Shows a frequency input box to enter the lower sweep frequency. Enter the Mhz using the keyboard and press M. Frequency in decimals can be entered with use of *
  • 3 / 9 - increase/decrease maximum dB value (vertical scale)
  • 6 - toggle receiver bandwidth
  • * / F - increase/decrease squelch level
  • 0 - toggle modulation type (FM/AM/USB)
  • Side Button I - exclude current frequency in the spectrum scan
  • Side Button II - toggle backlight
  • EXIT - exits to the previous screen/function
  • PTT - switch screen to detail monitoring of last received frequency (see below)

Detail Monitor screen

Monitor Mode

Button functions

  • M - Scrolls through the parameters displayed at the bottom of the screen which can be adjusted with UP/DOWN

LNA$ - Low Noise Amplifier $

LNA - Low Noise Amplifier

PGA - Programmable Gain Amplifier

IF - Intermediate Frequency

  • EXIT - exits to the previous screen of the spectrum analyzer

Documentation