MRA 5Q User Manual
Contents
1. e Push MODE yes to confirm Modify spektr Spectrum Refre SCAN MENU Settings UP Spectrum Entry DOWN gt 2sec Erases the old background Spectrum Entry P MODE yes MODE Spectrum Entry spectrum and makes a new background record It is recommended to switch AUDIO ON because in the second phase of Spectrum entry all the recorded frequencies are automatically tuned up for an instant The user can hear the local radio background During this process the display is signaling BackG signal strength of recorded signal in the background S instant signal strength In the third phase of Spectrum entry all DECT frequencies are checked if function correct DECT is active see chapter XIV The display is signaling xxx 000 000 yyy if the 3 values 000 000 are changing the DECT signal is detected During the spectrum entry or spectrum refresh see chapter V people should walk in the room to imitate the usual situation Human bodies are reflecting or damping radio waves and the aim of spectrum entry is to store as much as possible legal signals to avoid later false alarms If more then 350 channels for frequencies over 330MHz or more then 110 channels below 330MHz are occupied the LCD shows a hint to shorten the antenna or to reduce the GAIN trimmer on the bottom anti clock wise DECT this wireless system should not be used in protected area its base is permanently transmitting and irregularly changes2. SCANr is activated if any time 10 60s is selected In SCANr all functions are equivalent to the SCAN mode but additionally the signals causing alarm are recorded on connected audio recorder 8 Each audio record has the selected length 10 60s and if any of signals is active for a long time period its next records are repeated in a random period between 5 25 minutes For audio recording any type of recorder with VOX voice activated external microphone input and external 3V power can be used Connect the SCAN R adapter to the OPTIONS connector stereo 3 5mm and the CHARGER connector Connect the mono 3 5mm connector and a small 3V power connector to the recorder Set the recorder to VOX mode set the SCANr mode on the MRA 5Q and push button MENU MRA 5Q switches to M tuning Adjust recorder VOX sensitivity to start recording Push button MODE for returning to SCANr and the recording must stop in approx 3 sec time New signal history is the same like in SCAN see section IX The channels with audio record s are marked by symbol 4 instead Check all audio records and compare them with signals on channels marked 4 Legal signals causing false alarms should be added to the background memory see section X next selection If the MRA 5Q is connected to the QM5000 system the SCANr is disabled XII Manual tuning and frequency measurement This function can be activated from any mode and allows frequency tuning by UP or DOWN
3. background memory Pre alarm a short flash of red LED and a short beep if AUDIO is ON In the bottom right corner of the LCD the percentage of achieved alarm level is indicated The alarm level increases in the case of continuous presence of the new signal ID of the last background record is CO5B 0 A new signal is reaching 48 of the alarm limit SCAN C05B 48 status below 100 is PREALARM Alarm the alarm is activated when any of new signals reaches 100 of alarm level The default time for reaching the 100 alarm is 10 minutes This parameter can be adjusted chapter XV Alarm is indicated by continuous light of red ALARM LED continuous audio tone if AUDIO is ON and the ALARM message on the LCD alternated by the duration of the alarm HH MM hours minutes 0 ALARM Duration of the ALARM is 1 hour and 7 min 01 07 indication in brackets is alternating SCAN C05B 100 Past alarm indicated in the top right corner of the LCD by message ALARM alternated by HH MM which is time information how many hours minutes ago the last alarm has stopped Last alarm stopped before 47 hours and 17 min At the same time a new signal is reaching 22 of the alarm limit indication in brackets is alternating o ALARM 47 17 SCAN C05B 22 IX New signal check This function allows checking of signals which are causing or caused an alarm In the SCAN mode all signals which are not stored in the background
4. frequency The MRA 5 has to reduce sensitivity for all DECT frequencies to avoid false alarms V Spectrum refresh Adds to previously stored spectrum other active signals This command is recommended for quick recording of varying spectrum to record as much as possible signals and so to reduce later false alarms The process and display messages are the same like during Spectrum entry chapter IV a By button MODE set SCAN b Long push button MENU c Select UP Modify spectr d Select UP Spectrum Refre e Push MODE yes to confirm Modify spektr Spectrum Refre SCAN MENU UP Spectrum Entry UP gt 2sec Adds active signals to Spectrum Refresh NUTS MODE yes MODE Spectrum Refresh the previously stored background VI Background check detection of already installed bug All signals recorded in the background chapter IV or V should be checked This is the fastest and most effective way of selective detection of any active wireless bug already installed in the room see chapter XVI dangerous signals Tuning and checking of background signals a Using the MODE button set the Background check mode he 1th record from 124 occupied channels is checked chn 041 he number of this channel is 041 current signal level is BackG 065 S 062 062 signal level 065 is written in the background memory indication in brackets is alternated O00 001 124 b By using the UP or DOWN buttons ch
5. memory are written to the new signal memory The new signal memory can store up to 100 records If more than 100 new signals are received the less important records are erased The less important signals are usually sporadic very weak caused by electric pulses etc a Using the MODE button set the New signal mode b By UP or DOWN buttons check all new signal channels The current channel number is alternated by sequential number of the channel the total number of new channels 6 c If a dangerous signal appears disconnect the power supply see LCD DIST and find the strongest signal in the room The information displayed about each new signal S highest recorded level of a new signal 0 to 240 B background level on the displayed channel SM the sum of new signal activity time DD HH MM days hours minutes L the time of last appearance of the signal DD HH MM XX of achieved alarm limit before XX informs that this channel caused an alarm in the past 4 before XX this signal has an audio record in the connected recorder see SCANr mode in chapter XI 002 023 2 new signal from total 23 new channels ooo 002 023 chn 480 signalis on channel 480 chn 480 this channel has caused an alarm in the past New signal 56 56 alarm level in the last scan cycle S 1 17 B 010 x 56 S 117 max recorded signal level 117 SM 00 12 35 56 a cash teas oS of Sea rete or 010 00 00 x 56 sum of this channel activity o
6. the MODE button set SCAN mode b Note the ID of the last background XXXX The ID is security code has 65536 combinations which gives a good protection against non authorised manipulation The ID is arandom number automatically generated during any spectrum entry or refresh The ID code and all memory records remain stored in the memory also after switching off If the ID is changed it is sure that somebody was manipulating with the device The manipulation could be caused by an attacker who installed a bug and programmed its frequency to the background In such a situation a background check chapter VI should be done c To allow detection of sophisticated pulse and digital devices the default sensitivity of MRA 5Q is very high Such high sensitivity is causing unwanted detection of different sporadic signals like air communication mobile systems different pulses etc To avoid disturbance by such pre alarms it is recommended to switch the AUDIO off and just time to time check the ALARM LED d Avoid usage of wireless systems like DECT WiFi GSM gates radio controls wireless security wireless cameras etc in the protected area Those signals can mask most dangerous eavesdropping devices based on a similar principle Vill Pre alarm Alarm Past alarm The alarm status is indicated in the SCAN mode when the MRA 5Q is permanently protecting against eavesdropping Alarms are caused by detection of a new signal which is not stored in the
7. Memory Radio Analyser MRA 5Q User Manual Read this manual before use Version Q1 7 The new MRA 5Q is an advanced automatic radio scanner suited for instant detection of various types of radio bugs in the frequency range 34 5900MHz The basis of the system is the radio spectrum memory combined with an ultrafast scanning The whole frequency range is scanned every 10 seconds and the currently received signals are compared with the initially stored clean background spectrum The presence of a new signal activates a three level alarm output All new signals with frequency time and a statistic information are stored in an independent alarm memory MRA 5Q allows to automatically acquire audio records of new signals which have been causing alarms Recorded audio samples together with the stored statistic information are reliably indicating if the object was attacked by RF eavesdropping MRA 5Q can be used as a part of the QM 5000 bus system QM 5000 allows parallel connection of up to 127 MRA 5Q devices within an object network The bus system allows full remote control of each device and additionally it contains numerous additional features like spectrum analysis in the range of 34 5900MHz audio signal analysis background statistic new signal statistic automatic audio sampling frequency and spectrum records selective statistic system statistic etc QM 5000 is not only a comprehensive solution for object permanent protection but a
8. an be used instead of built in loudspeaker XVII Power low battery indication a The device is designed for permanent protection and it should be used with external mains power supply b If battery voltage drops below 7V the LCD is warning and displaying BATT Charge or change the battery c Battery voltage bellow 6 5V automatically switches off the device d If the switch POWER is ON and the external power is reactivated the MRA 5Q automatically restarts and continues the last function which was selected before the automatic switch off Note The manufacturer does not bear any responsibility if the device is incorrectly used or connected to non homologated accessories In case of permanent protection the correct function of MRA 5Q should be periodically proved by an appropriate test device Technical Specification of MRA 5Q Version 1 7 e Frequency range 34 5900 MHz e Sensitivity for S N 10dB 34 2200 MHz 20 50uV 2200 5900 MHz 50 1000 uV e Demodulation WBFM NBFM AM e Bandwidth 500 kHz e LCD display 2x 16 character alphanumeric e S meter dynamic range 73 dB e Signal strength measurement 40 level LCD bar e Distance measurement for 1 mW source 1 50 meters e Battery backup of background spectrum and new signal memory e Background memory 512 multifrequency channels e New alarm signal memory 100 re writable channels e ID codes against unauthorised use 65536 e Fine tuning 1 multifrequency channel e Automatic sca
9. buttons and fine tuning by the SEARCH knob a Push the MENU button shortly The LCD displays M tuning manual tuning b Use the UP and DOWN buttons for tuning in a wide frequency range Use the SEARCH knob for fine tuning c To measure the frequency of tuned signal push the MENU button shortly d The MODE button returns to the previous mode Manual tuning and frequency measurement chn XXX tune UP or DOWN knob UP or DOWN returns to chn XXX chn XXX manual tuning MODE M tuning NNNN 00 F 325 8MHz returns to the last mode MENU re measures frequency XIII Signal level measurement transmitter distance The bargraph DIST 50 1m is indicating approximately the distance of a transmitter 100 2000 MHz effectively radiating 1mW RF power In practice the radiation efficiency of hidden bugs is problematic and the declared RF power usually does not correspond with real ERP Use the DIST bargraph for an exact localization of a bug see section IX c In modes background or new signal check the signal strength is also indicated S 000 minimum up to S 240 maximum XIV Automatic tuning Using the MODE button to set the Autom tuning mode The MRA 5Q is automatically tuning at a speed of 40s per the whole frequency range At each signal the tuning stops for 4 seconds For searching more or for listening to the signal push the MENU button to activate the manual tuning The MODE button returns back to automatic tu
10. eck all background channels The current channel number is alternated by the sequential number of channel sum of occupied channels in the background memory During the background check the system is automatically tuning the strongest signal when going to a new channel If you use the SEARCH knob return it back to the central position before pushing UP or DOWN to allow symmetric fine tuning of the next background channel c Tune the best reception by the SEARCH knob the LCD measures the signal level in the DIST area d Pushing the MENU button for several seconds opens a submenu editing of selected channel ooo chn 041 Edit BG Edit BG 041 BackG 065 S 062 es MENU no MODE yes_ MODE BackG 065 S 062 gt cSec Button UP increases background BackG DOWN decreases Button MODE confirms new setting Increasing of BackG the sensitivity for selected channel is decreased but the false alarm resistance for this channel is increased Value S is indicating instant signal level Value BackG should be approximately the same like the S level Note The alarm is signalled if the signal level is higher than BackG TH The TH threshold is a number 20 to 100 its actual level is depending on adjusted sensitivity chapter XIV and on the instant signal level on the scanned channel Signal level S and BackG is alternating between 0 no signal to 240 maximal signal Vil SCAN Permanent protection against wireless eavesdropping a Using
11. ermittent breaks and tones e hopping systems GSM WiFi short pulses random changes of DIST a b c d Z He a na Dangerous signals f FM or AM bug in the room reception of room sounds acoustic feedback g scrambled bug distorted sound from the room h carrier frequency when tuned the noise disappears make noise in the room and listen to any response i digital signal noise little different than the normal noise of MRA 5Q For other signs see d e j spread spectrum signal intensity increases but the noise is still the same like without any signal If signals like f or g are received it is sure that the bug is installed in the checked area In cases h i j the signal source test has to be done to find if the signal is originated in the checked room or incoming from outside For localization of the signal source disconnect the power supply adapter and slowly walk with the MRA 5Q around the room If the strongest signal is near the window and the same frequency is also in the next room the signal is coming from outside If any dangerous signal is originated in checked area the real source is producing a very sharp signal maximum Near the transmitter bug when DIST is displays a value below 5m the telescope antenna should be shorten If the most common bug type f g is installed in the room the sound of acoustic feed back appears in the loudspeaker To achieve more legible reception the earphone c
12. lso a very effective tool for electronic countermeasures specialists since it gives a clear graphical picture of the current RF signals By using QM 5000 we can detect and record even such dangerous systems like spread spectrum or modified WiFi DECT UMTS and GSM etc I Controls inputs outputs and their function Front panel 1 2 x 16 character LCD display 2 Switch POWER ON OFF 3 Switch AUDIO ON internal loudspeaker ON 4 Knob AUDIO internal loudspeaker volume control 5 Knob SEARCH fine tuning 6 Button MODE function switch 7 Button MENU a short push switch to manual tuning b in manual tuning frequency measurement c long push in modes SCAN Background and New Signal activates context menu user is navigated by displayed instruction to other functions 8 Button DOWN a frequency tuning down b memory records listing down c other context selections 9 Button UP a frequency tuning up b memory records listing up c other context selections 10 Green LED ON indicator ON 11 Yellow LED CHARGE external power supply and battery charge 12 Red LED ALARM a flashing each 10 sec PRE ALARM b continues light ALARM Rear panel 13 ANTENNA _ telescopic antenna 14 Connector CHARGER external power 12 25 V DC centre pole 15 Connector PHONES ALARM LED a earphones 2 x 32 ohm disconnect internal loudspeaker b external LED ALARM output 2mA right channel pole stereo ground pole 16 Connecto
13. n cycle duration 10 sec cycle e Frequency measurement 34 4000MHz resolution 0 1MHz e Optical and acoustic alarm output e Pre alarm period one scan cycle 10sec e Alarm delay adjustable 1 40 minutes of new signal activity e Common alarm time information max 100 hours e Time information about specific signals sum last appearance max 45 days e Remote amp system audio output 1 4Vpp for SCAN R or QM 5000 e External audio recorder period of automatic alarm signal audio sampling 1 60 sec e System bus RS485 max 128 devices bus up to 1200 m e Adjustable audio output internal loudspeaker external earphone e Power 9V internal NiCd accumulator or 6F22 battery e Current consumption SCAN 30mA OFF below 0 7uA e Low battery indicator below 7V automatic switch off below 6 5 V e External power amp charging 12 25V DC automatic re start after power drop out e Built in telescopic antenna e Size 136 x 49 x 137 mm e Weight 620 g incl battery e Device attested EN 50131 1 EN 50130 4 EN 55022 EN 50130 5
14. ning The automatic tuning function is designed specifically for security officers who provide permanent physical spectrum supervision For better uninterrupted reception use external earphones XV Setting of system parameters a Set the SCAN mode b Push the MENU button for several seconds by buttons select Alarm time Modify spectr Sensitivity gt 2s5ec SCANr Bus ID use MODE to to select required Buttons are setting required parameters button option MODE confirms required setting and returns to SCAN Selectable parameters Alarm time pre alarm period 1 5 10 20 30 40 minutes default 10 min Sensitivity 5 10 15 20dB required signal level over the background to activate alarm Max sensitivity 5dB min sensitivity 20dB default 10dB Correct DECT Selection reduces sensitivity for all DECT channels if any active DECT is detected default ON OFF SCANr length of audio sample off 10 20 30 40 50 60sec default off Bus ID buttons UP or DOWN are changing the ID for communication within the QM 5000 system XVI Frequently received signals and their characteristic broadcast and TV sound clear sound like TV or FM reception TV carrier 50Hz noise sharper on both sides from the maximum radio networks and mobile telephones telephone calls etc data transmission data channel of mobile phones white noise on the carrier with int
15. r OPTIONS QM4000 system bus or audio recorder interface SCAN R Left channel RS485 right channel RS485 stereo ground line audio 2 Bottom 17 Trimmer GAIN antenna attenuation maximum clock wise ll MRA 5Q adjustment Push out the antenna and place the MRA 5Q in the room in such place to avoid direct contact with persons sitting or walking in the room For long term usage connect the power supply adapter indicated by yellow LED CHARGE Frequencies over 4500MHz are received by narrow slot in the bottom lid This slot should not be covered by electric conductive subjects lll Power ON and battery check After switching on the POWER switch the green POWER LED lights up the red ALARM LED flashes shortly and the LCD displays the software version and language EN English version If the AUDIO is ON the loudspeaker is tested A weak battery bellow 7V is indicated by BATT message in the bottom line of the LCD A weak battery must be changed as soon as possible If the battery is very weak bellow 6 5V the device cannot be switched ON When the device is used with external power supply DO NOT USE non rechargeable alkaline batteries Preferably use NiMH or NiCd accumulators IV Spectrum entry Erases old content of the spectrum memory and makes the new record a Use the MODE button to set the SCAN mode b Push the MENU button for several seconds c Select UP Modify spectr d Select DOWN Spectrum Entry
16. urs 35min ee 00 08 SB L last appearance of the signal before 0d Oh Om this signal is active indication in brackets is alternating Listing of new signals The current channel number chnXXxX is alternated by sequential number of the channel and the total number of new channels YYY ZZZ YYY is the sequential number and ZZZ is the total number The signals are listed according to following priorities 1 XX of actual alarm 2 4 or information that the signal caused an alarm 4 see XI SCANr 3 SM sum of time of the signal activity X New signal management Working with the new signal memory and optimization of the background memory In the New signal mode push the MENU button for several seconds The LCD offers the following selection button DOWN Delete all it means erase all new signal records This instruction should be executed if all new signals had been checked and the user is satisfied with already programmed background spectrum no false alarms Erasing of all new signals ensures that during next new signal revision only the actual signals will be displayed OO Edit Delete all New signal MENU Delete all DOWN MENU no MODE yes gt 2sec button UP Edit offers following options button UP Add to BG adds the selected channel and information about its signal level into the background value B background level is increased to level S from the new signal memor
17. y It is recommended to add legal signals broadcast TV GSM BTS etc which have a high SM value First check the signals marked or 4 which have caused alarms in the past 000 chn 305 Edit Add to BG New signal MENU Delete all UP Delete record UP gt 2sec Level B of the channel 305 in the background Add to BG memory is increased to level S from the new MENU no MODE yes MODE signal memory button DOWN Delete record erase this channel from the new signal memory Note pushing different buttons than the menu offers returns to the previous mode XI SCANr The SCANr mode is an extension of the SCAN mode In this mode MRA 5Q automatically records audio samples of alarm signals This allows detection of time delayed bugs and in particular an expert analyses at any time after a VIP meeting a In the SCAN or the SCANr mode push the MENU button for several seconds b button DOWN Settings c or button UP or DOWN select SCANr and push MODE d or button UP or DOWN are setting the length of audio sample recording off SCANT is off 010 020 030 040 050 060 time of audio samples in seconds Confirm selected time by MODE button Modify spectr by or SCAN MENU Settings select SCANr MODE gt 2sSec SCANr off or time UP or DOWN are setting length of audio samples MENU no MODE yes confirm by MODE If SCANr is off the permanent protection section VII is indicated as SCAN
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