Films about government conspiracies and special agents are full of a wide variety of wiretapping devices. It seems that all this is beyond the reach of "mere mortals", but today you can safely make a bug for wiretapping, as in those very films, at home with your own hands. It is not difficult, and with a little experience in radio electronics, you can make it yourself.
Instructions
Step 1
Make a bug out of an ordinary mobile phone. To do this, turn off the backlight, ringtone and vibration. In general, make sure that the phone does not seem to show any signs of life. If you do not mind the mobile, then for greater persuasiveness, you can slightly crack the panel.
Step 2
Then turn on the auto answer function on your phone, for example, for 5 seconds, and just call it at the right time. Hide it in an inconspicuous place (in a flower or bookcase). The disadvantage of this method is that the phone's battery charge is limited, but if you have time, you can make recharge from the mains. Well, the signal from the mobile can be detected by any VHF receiver, which will very quickly give out your bug.
Step 3
Purchase the GSM phone bug program, install it in the mobile phone memory. The bug will automatically wiretap, intercept SMS, locate the owner of the phone and send this data to the server. This is the easiest and most effective way to make a bug from a mobile phone, albeit not the cheapest one.
Step 4
Use a highly directional microphone, which you can make yourself or buy online or on the radio market. You can disguise it by installing it in a headset from the phone, so that others will not suspect anything superfluous.
Step 5
Make a microphone bug according to the indicated scheme. Such a bug gives a signal that can be received at a distance of about 300 meters to the player's receiver in the absence of line of sight. The sensitivity will allow you to eavesdrop on a loud conversation in the room, and if the LF path is supplemented with an amplification stage, you can even hear a whisper.
Step 6
Use a voice recorder. Today, there are dictaphones of various sizes, up to miniature journalistic ones, so problems with disguise should not arise. One problem is the limitation on the amount of recorded information, so this method is not suitable in all cases.