? 26 of the State Technical Commission, issued on 23th June 2005 Purpose: The ST 007 EMF (electromagnetic field) Detector is designed to detect and locate the sources of electromagnetic radiation from devices intended for the unauthorized obtaining of information (eavesdropping devices), such as: radio microphones; telephone radio transmitters; radio-stethoscopes; hidden video cameras equipped with a radio channel for transmitting information; systems of spacial high-frequency radiation in the radio-frequency range; systems for transmitting image from computer monitors using a radio channel; radio beacons for tracking moving objects (people, vehicles, freights, etc.); unauthorized radio stations, wireless phones, and phones with wireless extensions; unauthorized use of GSM and DECT cellular phones; unauthorized use of Bluetooth and 802.11 (WLAN, WiFi) devices with a frequency range of 2.4 GHz. The ST 007 utilizes the principles of wideband detection of electric fields The ST 007 operates in three main modes:

The ST 007 utilizes the principles of wideband detection of electric fields. The ST 007 operates in three main modes:
-Search;
-Monitoring;
-Log view.

Search Mode

This mode is intended for detecting sources of electromagnetic radiation.
When in Search mode, the ST 007 receives radio signals in the range of 50 to 2,500 MHz, detects them, and outputs them to the built-in display and as an audio signal to the earphones and the built-in speaker. The level of the signal in comparison to the threshold level is indicated on two 32-segment level meters on the display.
The difference between the two meters is as follows: the top meter indicates the average amplitude of the detected signal; the bottom meter shows the signal's peak values. AM and FM signals will prevail in the top meter; signals resembling pulse types (such as DECT or GSM) will be displayed on the bottom meter. When the ST 007 detects mixed signals on its input (TV signal, for example), it will display them on both bars.
The ST 007 can measure current frequency values of the radio signal and determine its most stable value (for signals with a constant carrier frequency).
The ST 007 also displays the detection of GSM, DECT, Bluetooth, and 802.11 (WLAN, WiFi) signals.
In order to attenuate the interference of powerful radio transmitters of up to 300 MHz (TV transmitters from Channel 1 to Channel 10, FM radio stations), a low-pass filter is used.
If you connect a scanning receiver with a special communications port to the ST 007, its reception frequency can be set to match that of the reception signal of the ST 007.

	1	audio signaling/temporary indication of zero level of gauges
	2	current range of level gauges
	3	indicates the low-pass filter is on
	4	current absolute value of the zero level of meter 8, dB
	5	current absolute value of the zero level of meter 9, dB
	6	radio signal frequency (modified via settings in the Menu)
	7	type of detected signals (DECT, GSM, Bluetooth, and 802.11)
	8	32-segment meter indicating the level of pulse power of the source of radio radiation (detects pulse radio transmitters, such as GSM, DECT, and others)
	9	32-segment meter indicating the level of integrated power of the source of radio radiation (detects radio transmitters with a constant radiation power)
	10	differential representation of signal in Search mode (modified via settings in the Menu)

 

Monitoring Mode

The Monitoring mode is intended for detecting sources of electromagnetic radiation and storing data in NVRAM. The maximum number of events that can be stored in NVRAM is 4,096. The events can be viewed when the detector is in the Log View mode.
The Monitoring mode has an extended range of alarm signals, which can be triggered if the signal passes a certain level or frequency threshold, or if a certain type of signal is detected (GSM, DECT, Bluetooth, 802.11).
It is possible for the user to schedule the ST 007 to turn on and off.
This mode has two basic operations:
User controlled operation
The ST 007 is placed so that it is visible to the user. This is useful for detecting devices for the unauthorized obtaining of information among the visitors of an office, for example.
Autonomous operation
The ST 007 is placed in an area where the use of eavesdropping devices is suspected, and the electromagnetic environment will be monitored during a pre-programmed period without user interference.

	1	current number of logged events in a monitoring session
	2,3	threshold level markers: when the level exceeds the set threshold level, the event is logged in the protocol (set via the menu)
	4	signal frequency in the XXXX.XX MHz format (set via the menu)
	5	type of detected signal: DECT, GSM. Bluetooth, and 802.11

 

Protocol View mode

The Protocol View mode is intended for viewing the log of events stored in the ST 007's NVRAM during Monitoring.
Events can be sorted by:
-time;
-duration;
-signal level;
-frequency value.

	1	memory bank number (1-9). Not displayed in the Monitoring mode
	2	current event number (001-999)
	3	total number of events in the bank (001-999)
	4	event duration (hours:minutes, max, 99:59)
	5	event beginning time (hours:minutes)
	6	date of the event (day and month)
	7	signal frequency (if measured)
	8	signal type (DECT, GSM, Bluetooth, 802.11
	9,10	signal levels of the event.

 

The results of are indicated a four-line LCD with a resolution of 97 x 36 pixels as digits and text, as well as additional pictograms at the top of the display.
The ST 007 is controlled from a six-button thin film keypad
Sound output is available via headphones or speaker.
On the screen, help can be displayed, available in both Russian and English.

ST 007 can be powered from either 4 type AA batteries, or a power supply (included)

For software upgrades (new versions, additional features), connect ST 007 via Serial Port to your PC, and visit the manufacturer's site; the instrument will be reprogrammed automatically.

Specifications

Specifications
Frequency range, MHz	50-2500
Low-pass filter cutoff frequency, MHz	400
Input sensitivity,mV: 100-1200MHz 1200-2000MHz	<0.25 <0.5
Frequency meter sensitivity, mV	<15
Frequency measurement error:,%	+0.1
Display dynamic range,db	60
Power supply, V: internal AAA battery external power supply	1.5 4
Average current consumption , mA	<60
Dimensions (without antenna) , mm	85x53x19
Weight (without battery) ,kg	0.1

ST 007 box content
Unut	pieces
1. ST 007 EMF Detector Unit	1
2. Telescopic antenna	1
3. Power supply	1
4. Cable for connecting the ST 007 to a PC and scanning receiver	1
5. Earphones	1
6. AAA battery	1
7. This User's Guide	1