Transmitter built in a desk calculator with a sound starting system.


CAL-202 


 
Outline
    

  • It is what was built in the desk calculator, and a transmitter can be installed without sense of incongruity.
    

  • Since a highly efficient microphone and amplifier are built in, even if it installs in the corner of the room, the conversation of a low voice can also be caught clearly. 
    

  • Since it is a sound perception starting system, dispatch of an electric wave will not send an electric wave, if sound is lost. An unnecessary electric wave is not sent. Therefore, others become are hard to discover with a locator etc. 
    

  • Since current is hardly consumed while not sending the electric wave, the life of a battery will be in the state near cutting the switch, and lasts long very much. 
    

  • Since the manual switch is built in, when there is nothing necessity, the power supply of a transmitter can be cut. Even if it cuts a switch, a calculator operates. 
    

  • Since the antenna is built in in a main part, it can install without sense of incongruity in any way, and the function as a calculator is not spoiled. 
    

  • An exclusive receiver (KUR-400) is used for receiving. When you hear a low voice, 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. 
    

  • It can be heard in the place about 1km away using relay equipment (RP-300A). 
    

  • Automatic recording for 5 hour is made using KKCR-360. 
    

  • Prolonged automatic recording is made using the recorder with a commercial voice starting recording function. 
    

Directions
    

  • It pushes until it stops by the pin of attachment by there, since the about 1mm hole is vacant on the right of the main part. An electric wave comes out now. It will go out, if it pushes once again when cutting. 
    

  • If it puts on suitable places, such as a desk top, the rest is somewhere else and can hear the conversation of the installed circumference with a receiver. 
    

  • The notification distance of an electric wave is 50 or 150m. In the place where the inside of a building and the house build and are crowded, how to transmit an electric wave becomes bad and a receivable distance becomes short. 
    

  • The small stop screw by the side of the main part reverse side is removed with an attached driver. Subsequently, a minus driver is put in the junction portion of a back lid. Subsequently, since a crevice will spread if it pries, it gathers and removes with the finger of both hands. Since there is a place which puts a battery into an inside, the polarity of a battery is put in there to prevent mistakes, and a lid is shut as before. 
    

  • An exclusive receiver (KUR-400) is used for receiving. Moreover, although it is receivable with the multi-channel receiver of commercial UHF band, tone quality is bad or notification distance becomes short. 
    

  • 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, and it sets to sound starting, and since it is the mechanism recorded only when the sound which pushes a recording button has been noticed, when required, it can be heard collectively later. 
    

  • If the newest digital IC recorder is used, a part for 10 hours can be recorded continuously, moreover, it takes in in a personal computer and preservation reproduction can be carried out. 
    

Specification of CAL-202
    

      
Transmitter built in a desk calculator with a sound starting system.
      

        

          
(it sends electric wave only at time of sound perception) 
          

      Moduratin system Narrow-band frequency modulation 
      

        

          
(maximum frequency deviation +- 10Khz)
          

      Power supply voltage 3V 
      
Battery Dry cell U5x2 or Lithium battery CR-12600SE
      
Consumption current 9mA (at the time of dispatch)
      

        

          

            

              

                

                  

                    
 0.5mA (at time of standby) 
                    

      Continuation use time 150 hours (lithium battery CR12600SE) or far more
      
Dispatch output 3mW or less 
      
Dispatch frequency Three kinds 
      

        

          
A channel 398.605Mhz 
          
B channel 399.455Mhz 
          
C channel 399.030Mhz One either 
          

      Outside size 132mm long, 111mm wide, height 31mm 
      
Weight About 120g 
      

Notes
    

  • Although the about 1mm hole is vacant in the body display subordinate side, since sound is collected here, installation which plugs up this hole is not carried out. When you put in a switch, be careful enough not to poke a microphone hole by mistake.