Could you send me links of such websites where i can find stuff. I want to build a good project. Most of the one's i see are basic transmitters and recieversRunning an FM receiver is one thing. As for transmitting, municipal regulations severely limit your activity. From an electronics mail-order house I purchased a $10 kit which transmits a weak signal to a nearby radio on the normal commercial FM band. The tuner is one section, followed by the demodulator. For experimenters there are various receiver projects to pick up civil service bands such as police band, aircraft band, etc. These operate at a frequency range which presents challenges of its own. You may find a local club of radio enthusiasts who can provide assistance. Or, many radio enthusiasts run their own website containing electronics articles and projects.
Any material for this?Learning Steps.
-Designing an efficient and low noise oscillator
-Designing driver stage
-Designing Power Stage
Start with Power Stage and test it under appropriate conditions. If it woks well, go ahead to previous step.
Sorry for the missed information.Hi,
I miss a lot of information here. Like:
* what it is used for.
* what is the information transported via the FM? Is it analog, maybe audio (voice, music, single or multiple channels)...
* is it digital (data rate, coding ...)
* what RF (carrier) frequency range
* needed (modulation) bandwidth
* RF power (or expected distance ...)
* you want to build with discretes, ICs, modules, ready to buy ...
* what does "good" mean? Good in the meaning of low power consumption, best availability, low maintenance, low cost, waterproof, rugged metal case... I expect a specification with numbers and units.
I mean an "FM transmitter / reciever" could be anything from a handheld garage door opener to a 100kW professional audio broadcast station.
From $1 to $100k or more...
Klaus
sorry if I have to repeat: But an engineer does electronics specifications with numbers and unitsit should be of the level of a engineer
Thank you, I'll try and search on the Internet.sorry if I have to repeat: But an engineer does electronics specifications with numbers and units
... and design using physics and math.
I can´t type in "low power" into my calculator.
I do understand that you don´t expect calculations from us .. instead links to documents.
I can´t help with hte documents.
But I can recommend just to do internet search. Then you can filter out "the direction" ... of what you are after
Please focus on "professional information", that is manly from semiconductor manufacturers, FM designers, universities and so on.
You can also recognize good informatins when they provide tables of sepcifications, technical descriptions, design recommendations, schematics, PCB layout.
Please don´t rely on crappy hobbyists informations. (for sure there are good hobbyists)
This all should help to find numbers you can work with later ... for your design.
Btw: I wonder why you are looking for a receiver. Any FM radio receiver will, do .. I expect you to already have one laying around.
Klaus
Im really new to this, so i dont really have a idea of what i want. But i'll look in the digital readout method too. Any materials where i can look into this?One obvious option that comes to mind is the frequency readout. Is it analog or is it digital? The analog method traditionally involves a mechanical contrivance attached to the tuner. You would need to pencil in the frequencies, or print a list custom-sized to fit your homemade radio.
* Digital readout has a frequency counter capable of 80-110 MHz. Optional are prescalers dividing by 10,000 or 100,000 (which allows your counter to have 4 or 5 digits). In many ways a digital counter is easier to build than the analog type. And a digital readout is a chief method to give your project an advanced modern look.
Notice that the frequency counter can also be hooked up to a transmitter to tell you it's 'on the air' and at what frequency.
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