TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR
IPS121
7
If "GSM 3G DECT WF BT" submenu is selected in main MENU you will
see the submenu which allows work with signals imitating data transmission
standards: "GSM" - GSM900, "3G" - Third generation of mobile
telecommunications, "DECT" - Digital Enhanced Cordless Telecommunications as
well as data transmission standards in 2.4GHz frequency range: "WF" - Wireless
local area network (Wi-Fi) and "BT" - Bluetooth. (Pic. 4)
It is possible to select a standard required to be imitated as well as
output power.
Carrier frequency, band of signal and time parameters of radio impulse
are imitated.
If "LF/MF.01-120kHz" submenu is selected in main MENU, you will see
the submenu which allows work with acoustic and ultrasound signals in 0.01-
120kHz frequency range outputted through "LF" socket. It also turns magnetic
field emitter on. Position of this emitter is marked on the front panel as: "MF". In
this case stray emission of radio-electronic devices is imitated (cell phones,
recorders etc.). (Pic. 5)
"LF" (TRS 3.5”) socket is an output for low frequency amplifier and
intended for speakers (Pic. 6)
There are three options for carrier
frequency selection:
Random selection of frequency
Frequencies corresponding to the octave filter.
Frequencies corresponding to third octave filter.
With selection of item "Modulation OFF" it is possible to select
modulation of carrier signal: FM, AM or PWM.
If AM or FM is selected, "Frequency" option will appear allowing selection of modulation signal
frequency (for AM and FM modulation). "Deviation" option will appear for FM allowing selection of
highest deviation for modulated signal frequency from value of its carrier frequency
If PWM is selected two options will appear: "Frequency" allowing selection of frequency of
impulse and "Ratio" allowing selection of interval between impulses.
Power is changed in % of maximum power.
If "RJ-45 .01-20000kHz" submenu is selected in main MENU, you will
see the submenu which allows work with signals in 0.01-20000kHz range
outputted through "RJ-45" socket to "4-5" pair (Pic. 7). Pair "3-6" used as
device's “ground” which allows for asymmetrical connection to the line. Cable
"3/RJ-45" is used for such connection. Black wires are connected to the
“ground” and red to the "4-5" pair.
With selection of line "Modulation OFF" it is possible to select
modulation of carrier signal: FM, AM or PWM.
If AM or FM is selected "Frequency" option will appear allowing
selection of modulation signal frequency (for AM and FM modulation). "Deviation" option will appear for
FM allowing selection of highest deviation for modulated signal frequency from
value of its carrier frequency
If PWM is selected two options will appear: "Frequency" allowing selection of frequency of
impulse and "Ratio" allowing selection of interval between impulses.
Picture 3
Picture 4
Picture 5
Picture 6
