6. Operating Guide The device is turned on/off by pressing and
keeping ON/OFF button for about 3 seconds (see
8 in Fig. ).
After turning-on the main menu will appear on the
display (see. Fig. ), where the operating mode
can be selected.
Attention! If the display does not light up when the
device is turned on (see in Fig. ) and «CHK»
red LED is lighting instead, the battery must be
charged for further operation.
Choose the operation mode required moving the
cursor up and down buttons (see 5 in Fig. ) (marked
with reverse brackets). A mode is activated after
pressing button 4 (see Fig. ) marked at the display
in the function assignment line.
6.1. «Panorama» Mode Panorama mode can be used in all cases of
measuring frequency and power of an electric
signal applied to the instrument’s input connector.
Frequency counter line Attenuator Power meter line Function assigned to the button Time count Battery state Current time Frequency range indicator Fig. 3 Function assignment line Fig. 2
In this mode frequency and level values acquired
during each mea-suring cycle are continuously
displayed at the indicator (see Fig. 3). Digital
filtering techniques are not used.
6.2. «Search» Mode Search mode is used in the cases when sources of
RF emission are to be found. In this mode digital
fil-tering of the measured frequency is applied to
facilitate signal identification and acoustic feedback
mode can be switched on. An acoustic generator is
switched on for a time while the «AUD» button is
kept pressed ( in Fig. ). Signal frequency capture
is signalized by lighting of the «Lock» green LED
(3 in Fig. ). The measured value can be read at the
indicator (see Fig.4). This value will be displayed till
switching over to another mode or turning off the
device (even in the cases when signal sources are
switched off). If no signal is found the appropriate
message is displayed at the indicator (see Fig. 5).