Micro transmitter with ALC connection with a telephone circuit in- series.
KTT-750


Outline
  • The newest technology raised the performance further and, moreover, condensed it to the size of caramel size. It hides and is easy to equip.
  • It use by hiding in a rosette box or in the telephone and only while using the telephone, the electric wave of UHF is sent.
  • Since the automatic level control circuit (ALC) is built in, the conversation of a big voice can also hear the conversation of whisper voice in the size of the same level.
  • For receiving, the receiver (KUR-400) of exclusive use and the receiver of commercial many channels is used.
  • A receivable distance is about 150m.
  • It can be heard in the place about 1km away using relay equipment (RP-300A).
  • It can record automatically by exclusive automatic recorder (KKCR-360) or by using the recording code of exclusive receiver(KUR-400) attachment to the recorder with a commercial voice starting recording function. Since it can be collectively heard when later required, it is very convenient.
Directions
  • The inside of a rosette box by the wall -- or it is used by attaching in telephone Any of two internal telephone wires or one line is separated, and the separated both ends are added with the clip of a main part, and it connects. First, after thrusting and connecting a clip code with KTT-750 main part, it is connected with a telephone wire. After that, it checks whether telephone surely operates. It can check by the ability of the sound which takes the receiver of telephone to it and is called "tsuh" to be heard.
  • Since there are three kinds of channels when hearing it with a receiver, it is not audible unless the channel is correct. The attainment distance of an electric wave is 30 or about 150m. It changes according to the situation of the place to install or the place to receive. In a building, distance becomes short.
  • An exclusive receiver (KUR-400) is used for receiving. Commercial UHF band Although a multi-channel receiver can also be used, tone quality is bad and receiving distance becomes short.
  • When you make it automatic recording, please be sure to carry out a check of operation. It changes into the state where the weather report of a telephone etc. is heard, there is no noise in a receiver, and it checks whether it is finely audible. After that, a receiver and a recorder are connected in recording code of receiver attachment, and the recording button of a sound starting system is pushed. Subsequently, it checks whether a telephone is hung up and the recording of a recorder has stopped. If the newest IC recorder is used, a part for 10 hours can be recorded continuously, and what was moreover taken in and saved in the personal computer can also be reproduced and heard.
  • In the case of a premise, please surely use an exclusive automatic recorder (KKCR-360) for a decipherment of a telephone number. In the case of a commercial recorder, it may be undecipherable enough.
Specification of KTT-750
        Micro transmitter with ALC connection with a telephone circuit in- series.
            (it sends electric wave only at the time of telephone use)
        Moduratin system Narrow-band frequency modulation
            (maximum frequency deviation +- 10Khz)
        Dispatch output of an electric wave 3mW or less
        Unnecessary radiation Less than [ -50db ]
        Dispatch frequency Three kinds
            A channel 398.605Mhz
            B channel 399.455Mhz
            C channel 399.030Mhz One either
        2 clip codes with screw terminal
        Outside size 9.5x15x22mm
        Weight About 5g
Notes
  • This device cannot be used for a business phon. Although an obstacle is not generated at all in a circuit, when you use, please use on the responsibility of yourself not to become infringement of privacy.
  • It may break, if it fastens too much not much strongly when carrying out the screw stop of the clip code to a main part. If weak, noise will appear in a telephone, or it becomes interruption.
  • Please do not attach a magnet in a main part. An electric wave does not become weak or it stops coming out..