Pressing “right” button of the cursor unit 5
(see Fig. 1) one of five increment values (of excess
thre-sholds) can be set: +3dB, +6dB, +dB, +8dB
or +4dB. When a stable signal exceeding the set
thre-shold appears, the instrument captures it in real-
time, «Lock» green LED lights up and the captured
fre-quency value is displayed at the indicator.
If «Message» function is active (see cl. 6.5.)
the device out-puts an acoustic alarm signal.
In this mode the attenuator is set to «Auto» position
and indication level - to «Line» position by default.
6.4. «Pulse» Mode «Pulse» mode is used to identify the data transfer
protocol for communication systems operating
in GSM 900/800/900 and DECT standards.
Besides, in the GSM standard the device
determines the type of the transferred data: “SMS”
(text) or “Talk” (speech) as well as the frequency
The view of this mode start screen is given in
When a signal is found and analyzed (captured),
the identified standard name will be indicated at
the display (see Fig. 8) and «Lock» green LED will