Questions tagged [transmitter]

Questions on a set of equipment used to generate and transmit electromagnetic waves carrying messages or signals, esp. those of radio or television.

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-2
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1answer
69 views

My Rf reciever circuit on battery ,but not with a rectified xformer output as source

I just made a Rf circuit that turns on and off a relay depending on the transmitter's message The circuit is working fine when i connect it to a 9v battery. But i cant get the circuit to work with ...
-2
votes
1answer
3k views

FM transmitter main output frequency

please tell me the output frequency of this circuit,its work and has about 10 watt power with using C2101 as output stage,thanks It's working,and has high power in so far as I turn it on close to my ...
-3
votes
1answer
61 views

How cell sites work? [closed]

In Mobile communication, how do cell sites communicate to each other to the point when they reach the cell site which is connected to the other mobile phone when I make a call . What is the medium of ...
-5
votes
1answer
357 views

Will a RF IC transmitter work without any antenna?

The IC is this one - https://www.silabs.com/documents/public/data-sheets/Si4012.pdf It seems i have set it up correctly according to its I2C dialog with the MCU, but nothing gets received by my SDR. ...
-5
votes
1answer
1k views

Mapping Temperature Transmitter Range: 4-20 mA to temperature Range: 0-100C [closed]

I want to know as to how do you subdivide the above range 0 C To 100 C into 4 to 20 mA.? Each mA will be of what Range in degree C.
-8
votes
2answers
232 views

Can a standard computer function as a radio receiver without additional hardware, and how? [closed]

Can a standard computer function as a radio receiver without additional hardware, and how? Thanks, and happy holidays.
-10
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1answer
114 views

How to increase frequency of my rc device? [closed]

I'm presently trying to increase the distance i can use a rc device. So I want to know how I can do it?