ST 500 "Piranha" Operation Manual: Wired Receiver Channel
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Functionality:
sorting of the detected signals (by frequency or by level)
quick tuning to the detected signal by selecting it in the table
frequency tuning
activating/deactivating the attenuator (20 dB)
AM/FM demodulation toggling
researching signals with OSCILLOSCOPE
Controls:
Key
Action
table row selection
FUNC
sorting signals
F2
toggling AM/FM demodulation
F3
turning on OSCILLOSCOPE
F4
activating/deactivating the attenuator (20 dB)
ENTER
turning on "FREQUENCY TUNING" function
ESC
switching to the previous mode
MODE
switching to main menu of device
6.5.1. "FREQUENCY TUNING" FUNCTION
For tuning to a frequency select the corresponding table row and press "ENTER".
Frequency tuning window (fig.35, 1) will appear. Using the keys with a 10 kHz increment,
set the frequency to obtain maximum response on the signal strength bar (fig.35, 2).
The function is turned off by pressing "ENTER" or "ESC".
Fig.35
6.5.2. OSCILLOSCOPE
To analyze a demodulated signal using the "OSCILLOSCOPE" function, in the AUTOMATED
mode table, place the cursor on the corresponding row and press "F3".
Functionality:
determining the time parameters of the demodulated signal
setting the division value of the time axis
listening to an AM- or FM-demodulated signal
on/off attenuator (20 dB).
