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Scramble system transmitter for minute sound hearing by remote control
SCR-200T
Outline
It is the transmitter which can control dispatch by remote control by the exclusive receiver. Since an electric wave is an electric wave of a scramble system, it can be heard with no receiver with a commercial receiver except an exclusive receiver. It can be heard only with an exclusive receiver (SCR-200R).
It becomes the system which changes four kinds of careers (dispatch frequency) for a short time (it is 20 times in 1 second). It restores to a receiver on a career in the form which carries out an automatic tailing synchronization.
It cannot be heard that it is not the receiver (SCR-200R) which became the pair by the difference in the order of a repetition of a career (being all six kinds).
Appearance is almost the same as that of KUR-400, and it is only micro that thickness increased by 4mm.
A possibility of being discovered since it is a remote control system and the electric wave is not taken out usually becomes that there is nothing.
The notification distance of an electric wave is about 200-300m. The notification distance of SCR-100T is prolonged about twice.
When continuation use is carried out, there is a battery life of about one day and a half. Since consumption current is 1mA or less when it is in a standby state, it has one month or more. Since it uses intermittently, even if it uses day for about 3 hours per, it will have ten days or more. if a dry cell U1 battery adapter (AD-T) is used when using for a long period of time -- 10 times of CR2 -- lasting long . That is, even if it uses day for 3 hours per without exchanging a battery, it can use for three months. Furthermore, there is electric light line connection type SCR-200TA to use semipermanently.
Although the electric discharge characteristic of a lithium battery was stable, in order to use it in the stable state further, step up stabilization power supply circuit was built in. It completely operates stably until a battery is lost completely. As for a dry cell, voltage descends gradually. However, even when dry-cell U1 adapter is used, just before a battery is lost, it completely operates stably.
Since the ALC (automatic volume adjustment circuit) is built in, it can be heard on the level same from a faint sound to a loud sound.
The model of special frequency can also be manufactured. (The maximum of less than [ 320MHz + - 2MHz ] and a career and the minimum width are less than 1.2MHz.) It becomes a receiver and a pair. Time for delivery is one month.
Directions
The battery lid on the back of a rear is slid back, and is removed. There is a place into which a battery is put. Lithium battery CR-2 are used. It is careful of the polarity of a battery to prevent mistakes. The minus side of a battery is pressed and put into a spring. When taking out, the plus side of a battery is taken out on tiptoe.
An attached helical antenna or a whip antenna is put in the antenna terminal of the front of a main part. Subsequently, the knob of the small slide switch written ON-OFF It moves in the direction of ON. It will be in a state of operation now. As for electric wave efficiency, in about ten percent, the direction of a whip antenna (option) becomes good.
A remote control formula scramble receiver and a set use a remote control formula scramble transmitter. The internal transmitter of a standard article becomes only G channels [ one ]. If the power supply switch of a remote control formula scramble receiver is put in, for 2 - 3 seconds will send an instruction electric wave to the internal receiver by the side of a remote control formula scramble transmitter at first. The internal receiver by the side of a remote control formula scramble transmitter is operating a short time at intervals of 2 seconds, in order to save a battery. Therefore, sending an instruction electric wave only at the beginning which put in the power supply switch is continued for 2 - 3 seconds. Perception of it of the internal receiver by the side of a remote control formula scramble transmitter begins to transmit an electric wave, instant. Although the transmitted electric wave by the side of a remote control transmitter is henceforth disconnected at intervals of about 4 minutes, the direction of a remote control receiver side will issue instructions of re-connection at an instant, if the electric wave of a remote control formula scramble transmitter is disconnected. Therefore, unless the power supply switch by the side of a remote control formula scramble receiver is cut, it can continue receiving continuously. If the power supply switch by the side of a remote control formula scramble receiver is cut when stopping, transmission of the electric wave by the side of a remote control formula scramble transmitter will also go out automatically less than several minutes.
When carrying out intermittence control of CCD camera, an external videocassette recorder, an external image transmitter, etc., it is used by putting the clip code (an option, \2,500) with a plug of exclusive use in the jack by the side of a power supply switch. Once the line by the side of the power supply currently supplied to apparatus cuts the minus line which connects with the apparatus from the battery, it is connected with the both sides of the cut line. The root of a clip connects with the minus side of a power supply (battery) whose root of a clip supplies a black line to the apparatus at the ground side of the apparatus which connects a red line. It cannot use in a plus side. In this case, the cases of the apparatus controlled with a remote control transmitter must be in the insulated state mutually. The current which can be intermittent is to 300mA in the maximum. Voltage is 20VD.C in the maximum. Exchange cannot be used.
When carrying out automatic recording combining a commercial recorder, it is used by putting the recording code of scramble remote control receiver attachment in the earphone terminal of a remote control receiver, and the external microphone terminal of a recorder. The cases of a receiver and a recorder are put together and it is made not to install. When used by sticking, please insert paper, a cloth piece, etc. in between. Unless cases are insulated, it may not be recorded normally.
Specification of SCR-200T
Dispatch part.
Scramble for remote control formula career exchange system voice hearing Transmitter.
Four kinds of careers are changed one by one by 50mSs.
Career frequency D 320.235Mhze. E 320.675Mhz. F 321.135Mhz. G 321.575Mhz.
System Six kinds (H, I, J, K, L, M).
Power supply voltage 1.5-3V.
Consumption current 30-80mA..
High frequency output 15mW.
Sprias Less than [ -50db ].
Receiving part.
Received frequency G 321.575Mhz.
It is intermittent operation of 30m second width at intervals of 2.5 seconds. At the time of standby
Consumption current 0.7mA (a control circuit portion is included) Standby state.
Antenna RCA terminal helical antenna or 1/4 wave strait wire (option).
Used battery CR2 (lithium battery) or AD-T, the AM1 battery adapter(AD-T) is 10 times as many life as CR2 .
Stabilized step up power supply circuit is included.
Operating temperature. -5 degree-C - 50 degree C.
Outside size 18mmx73mmx26mm.
Weight 55g (a lithium battery and a helical antenna are included).
Notes
Since the condensation internal precision parts are used please do not carry out usage which gives a shock.
Since the attachment portion of an antenna tends to break, be careful of handling enough.
Please do not attach a powerful magnet to a main part. It stops functioning at an instant like a magnetic card. It does not return, unless it readjusts.
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