ST 500 "Piranha" Operation Manual: Selective HF Detector Channel
16
In fig.11:
1 - active channel
2 - DIFFERENTIAL mode highlighted as currently active
3 - constant differential signal registered during the last scanning cycle (lilac)
4 - pulse differential signal registered during the last scanning cycle (yellow)
5 - peak signal level at the given frequency over all cycles (maroon)
Functionality:
activating the AUTOMATED mode
activating the "WIRELESS COMMUNICATION" mode
analyzing the signal at a set frequency
setting the gain
adjusting the band limits (zoom)
Switching off the DIFFERENTIAL mode (return to the "PANORAMA" mode) is performed by
pressing the "F3". The "F3" key field will become darker. Gain values and span set in
DIFFERENTIAL mode are saved.
3.2.1. "FIXED FREQUENCY ANALYSIS" FUNCTION
This feature is intended for researching signals detected in the "PANORAMA" or DIFFERENTIAL
mode. To activate it from either of said modes, select the signal of interest using and and
press "ENTER". The screen will look as shown in fig.12 below.
Fig.12
