Long battery life Minute sound hearing transmitter with various functions
KTK-800

Outline
  • It is a multi-function strong power type transmitter to catch a minute sound.
  • This type transmitter can be used for a long time in connection with a voice microphone or a contact microphone placed outside.
  • It is optional to use in releasing wave upon catch sound or release wave continuously either by turning of the switch. The wave is to be selected "High" or "Low" and one battery is used for "Low" and 2 batteries are used for "High". The battery life is nearly 3 days on "High" and 6 days on "Low" in releasing continuously.
  • In proper using, the battery life will be extended furthermore to 10 days. In using of a lithium battery, it works steadily regardless of temperature as well as a long time use.
  • The available distance is 300-600 meters and if set on "Low", it will be a half of the distance. However, some decrease of the distance in the space where many houses and buildings are built is unavoidable for which the way to release wave continuously is recommendable.
  • The (KUR-400) and conventional one for UHF band types sold in the market are available However, an exclusive receiver must be used when to catch a very low voice in whisper. Conventional one has a problem to hear due to noise makes by itself.
  • If Yagi Antenna is used for a receiver, a receivable distance will be prolonged by about 1.5 times.
  • By continuation dispatch When you hear whisper voice etc., please be sure to use an exclusive receiver. And it becomes impossible to hardly catch the noise which the receiver itself takes out with a commercial multi-channel receiver.
  • If it is made sound perception dispatch, prolonged automatic recording will be made to an exclusive receiver at an automatic recorder using an attached recording code. Moreover, automatic recording is made also to the recorder of a commercial sound perception starting system.
Directions
  • Since there is a space which pries and removes the lid of a case by attached metallic ornaments, and puts two batteries (lithium battery CR-123A) into an inside, a battery is put in there and a lid is closed. In the case of weakness, it sees to have carried out the battery, and it uses only a right-hand side battery. If it is made strength, or it is made weakness and it uses, only right-hand side batteries will incline and decrease in number. Please be careful.
  • It is careful of the polarity of a battery to prevent mistakes.
  • Power supply switch within a case strong (powerful) or weak (weakness) An electric wave will be sent if it carries out. a continuation oscillation (continuation) or a sound starting oscillation (sound starting) -- that selection is carried out
  • When using an external microphone terminal, an internal microphone is cut off automatically. The micro highly efficient voice microphone (6000 yen) and oscillating (contact) microphone (12000 yen) with a 1m code are prepared as an option.
  • An electric wave is transmitted having stood the antenna efficiently [ direction ] perpendicularly. In the inside of a building, and the place where the house builds and is crowded, how to transmit an electric wave becomes bad and a receivable distance becomes short. Notification distance will become short especially if it is in the state where an antenna adheres to a metal plate etc. Please separate an antenna centimeters [ several ] or more from a metal thing, and install it. Notification distance will become extremely short if it puts into inside, such as a metal box. As for notification distance, the direction of continuation dispatch is extended somewhat.
  • Automatic recording can also be carried out to the recorder with the commercial voice starting recording function using the recording code of attachment in an exclusive receiver (KUR-400). When you make it automatic recording, please be sure to carry out a check of operation. It checks whether make sound with pocket radio etc., an electric wave is made to send, there is no noise in a receiver, and it is finely audible. The recording code of receiver attachment is put with after that in the earphone terminal of a receiver, and the external microphone terminal of a recorder, it sets to sound starting, and a recording button is pushed. Since it is the mechanism recorded only when sound has been noticed, when required, it can be heard collectively later.
  • If the newest digital recorder is used, more than 10 hour can be recorded continuously, and moreover, it can take in and save and reproduce in a personal computer.
Specification of KTK-800
    Long battery life minute sound hearing transmitter with various functions
    Continuation dispatch(continuation) -- or Sound perception type dispatch(sound starting)
          (it sends only at time of sound perception) and
          output strength and weakness change "weak","strong"
    Moduratin system Narrow-band frequency modulation (maximum frequency deviation +- 10Khz)
    Battery voltage 6V (lithium battery CR-123A x2)
    Consumption current : About 20mA(strong) 10mA(weak)
            At the time of a dispatch stop (sound starting) : 0.5mA
    Continuation using time About 70 hours (output: strong)
    Dispatch output of electric wave 5mW (weak, 20mW(strong)
    Dispatch frequency Three kinds
            A channel 398.605Mhz
            B channel 399.455Mhz
            C channel 399.030Mhz One either
    Sprias Less than [ -50db ].
    External jack 2.5 phi mm double type
    Antenna with a screw 1/ 4 lambda form memory type strait wire (18cm), With [ screw ] Helical Antenna
    Operating temperature -10 degree-C ~ 50 degree C
    Outside size 40x55x20mm
    Weight About 57g
Notes
  • Be careful of the polarity of a battery to prevent mistakes absolutely. If a switch is turned ON by mistake, internal apparatus is damaged, and if it damages, there is danger of emitting smoke.