Detailed description:
This is our best selling transmitter. This transmitter is preferred over 2.4GHz alternatives because it is less prone to interference from outside sources such as wifi networks and cordless telephones. As more innovative 2.4GHz radio control systems emerge, you will be tempted to try one. The 900MHz video transmitter will not interfere with 2.4GHz R/C systems (Spectrum DX6/7, FASST, Xtremelink). 2.4GHz video transmitters will absolutely reduce the range of such R/C systems.
It is very easy to implement this transmitter into your design. The transmitter has four connections:
Red: Power
Black: GND
Yellow: Video in
White: Audio in
You can connect any compositve video source to this transmitter. This includes but not limited to:
Digital camera video out
Video camera video out
Micro camera video out
The power input is very wide, as is the performance envelope.
7.5-13VDC is the effective voltage range for this transmitter.
<7.5VDC the transmitter does not operate.
7.5-10VDC the transmitter will operate with reduced range.
11-13VDC is optimal for the maximum range.
The transmitter heats up relative to the operating voltage. It is normal for the transmitter to heat up 60 degrees Celsius when being powered from a 12VDC source. For prolonged life it is recommended to use a heat sink or place the transmitter in an airflow.
The best portable power source is a 3s1p Li-Poly battery.
To determine the run time of a battery:
battery capacity in mAh divided by total current draw in mA= run time in hours
Current draw is added together (example) :
Transmitter- 300mA
Camera- 150mA
Microphone- 50mA
Total= 500mA
A 1000mAh 3s1p Li-poly will ideally power the above for two hours. It is always vital to consider how you battery voltage will drop as the battery is being discharged. A 15% margin is enough.
The 1000mAh battery will power the setup for 51 minutes .
This transmitter will not work by iteself. You need to receive the 900MHz signal which is being transmitted.
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