The Mini transmitter operates on one 1,5-volt battery (LR-1) in a suitable for the socket size. Use of Duracel products is preferred. The batteries are placed so that the minus fits in the suspension and the plus – in the flat side.
Do not place the Mini transmitter near by big metal objects. Do not place it near computers, TV sets or other electrical devices too. Best places to put it are behind lockers or furniture.
The microphone is sensitive enough to transmit all noises from the supervised area. No approachment to the noise source is needed.
The antenna should be set straight, use sticky tape to fix it. After installation the device should not be touched in order to avoid frequency deviations.
To change the frequency, turn the trimmer with a screwdriver in small steps.
Turn on the receiver, shift to W-FM ( FM ) and search the 88 MHz - 150 MHz area. On a certain point (approx. 100,00 MHz) you will hear a whistle or background noises. Now you should leave the room and readjust the receiver if needed.
Under best circumstances the reception varies around 50-400m.
Under worst circumstances the reception doesn’t fall under 40m.
The UKW Radio reception is a bit worse in general due to the fact that the radio doesn’t have the high sensitivity of a scanner. The reception is maximum 150m and minimum 30m.
The UKW Radio greatest advantage is the fast mobile use of the scanner.
Turn on the receiver and search the 88 MHz - 108MHz area. On a certain point (approx. 100,00 MHz) you will hear a whistle or background noises. Now you should eave the room and readjust the receiver if needed.
If there are no mechanical damages on the device, it will be replaced even after years. You can obtain the address on telephone number 0049172-5337686 or mail Spywelt@spywelt.de.