ST 500 "Piranha" Operation Manual: Wired Receiver Channel
35
Controls
Key
Action
adjusting the band limits (zoom)
cursor positioning
F2
activating the AUTOMATED mode
F3
deactivating the DIFFERENTIAL mode
F4
activating/deactivating the attenuator (20 dB)
ENTER
activating "FIXED-FREQUENCY ANALYSIS" function
ESC, MODE
switching to the main menu of device
F1, FUNC
disabled
6.4.1. "FIXED-FREQUENCY ANALYSIS" FUNCTION
This function is used for studying signals detected in the "PANORAMA" or DIFFERENTIAL mode.
It allows listening to a demodulated (AM/FM) signal and researching it with the OSCILLOSCOPE.
The inclusion of the function is carried out from the "PANORAMA" or the DIFFERENTIAL mode.
To activate it, use and to set the cursor at a given signal, and press "ENTER". The screen will
look as shown in fig.32.
Fig.32
In fig.32:
1 - active detection channel
2 - signal level at the selected frequency
3 - "F2" (toggling AM/FM demodulation)
4 - "F3" (turn on OSCILLOSCOPE)
5 - spectrum obtained in the latest measurement cycle (grey)
6 - peak signal level at the given frequency over all cycles (maroon)
