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參數(shù)資料
| 型號： | FMT-31204E |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 12V 1Watt 27MHz Transmitter |
| 中文描述： | 12V的1瓦27MHz頻點發(fā)射器 |
| 文件頁數(shù)： | 2/3頁 |
| 文件大?。?/td> | 303K |
| 代理商： | FMT-31204E |
Off Delay 2 – 62 seconds
Transmitter will transmit a 1.5 second transmission burst and then stop for the "off delay" time selected. The
"off delay" time is user selectable between 2 to 62 seconds by adjusting trimpot on the transmitter board. If
the code changes during the "off delay" period the new code will be transmitted immediately. When the "off
delay" time lapses, transmitter will transmit another burst. The transmitter will cycle (transmission and off
delay) inde
fi
nitely, if at least one code switch from the 12-Way code switch is ON and supply is connected.
Off Delay 1 – 10 minutes
Same as mode 1 except the "off delay" is user selectable between 1 to 10 minutes.
Continues Transmission
Transmitter will transmit continuously, if at least one code switch from the 12-Way code switch is ON and
supply is connected. A transmission limit of
fi
ve minutes is used to comply with local radio regulations.
To activate a receiver longer than 5 minutes, use a delay off feature in the receiver (FMR-212T) and
transmitter. The delay off feature in the receiver needs to be set more than the transmitter. This ensures that
the transmitter keeps resetting the off delay in the receiver.
1.5 – 10 seconds one burst transmission
Transmitter will transmit one burst and then go to standby or sleep mode. Adjusting the trimpot will vary the
burst length. When the code is changed and supply is connected, transmitter will emit one new burst of the
new code.
Sleep mode (10 uA) is activated when all 12 code switches are OFF; this applies to all four modes.
(Grey illustrates the position of the DIP switches)
- 2 -
Installation Instructions
Power Supply
11 to 13.6 VDC (for constant RF-Output), screw type terminal. Absolute maximum 14VDC.
Current Consumption
Nominal 300mA at 12VDC supply (Transmitting)
Nominal 12mA on standby
Less than 10uA on sleep mode (only when all code switches are OFF otherwise it is on
standby)
Operating Frequency
27.145MHz (Other frequencies available on 27.045, 27.195 and 27.455 MHz. The 27.455
frequency is not available for Australia).
Carrier Frequency Tolerance
Crystal controlled, 30 parts per million (0 to 50°C).
R.F. Output Power
1 Watt, into 50 ohms SO239 socket at 13.6VDC.
Antenna
SO239 socket is provided. Optimum performance use Elsema ANT27L antenna
Type Of Emission
Narrow-band-width Frequency Modulation (5K00F1D)
Frequency Deviation Limiting
1500 Hz non-return to zero
Modulation Frequency
1 kHz (0.96 ms/bit) (15% tolerance)
Spurious Transmission
-13dBm (50uW)
Necessary Band Width
±2.5 kHz
Digital Coding System
On-board 12-way code switch
Code switch is inserted into an IC socket. This is for the easy removal of the code switch.
Elsema’s coding cable can be inserted into the IC socket, which enables the user to have 4096
digital channels.
Technical Data
ELSEMA
12 Volt 1 Watt 27MHz Transmitter - FMT-312E, FMT-31202E, FMT-31204E
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| FMT-312E | 12V 1Watt 27MHz Transmitter |
| FMW10 | High Transition Frequency(Dual Transistor)(高轉換頻率雙晶體管) |
| FMW6 | High Transition Frequency(Dual Transistor)(高轉換頻率雙晶體管) |
| FMW7 | High Transition Frequency(Dual Transistor)(高轉換頻率雙晶體管) |
| FMW8 | High Transition Frequency(Dual Transistor)(高轉換頻率雙晶體管) |
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| FMT-312E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:12V 1Watt 27MHz Transmitter |
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