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Re: remote control
What kind of remote is that?
If it has a PCB loop antenna you should be careful in order not to cut the antenna.
Also grounding is important too, cutting soem sections will reduce the ground size, which will (most probably) decrease the signal level. Again I am assuming it...
Yes, the data length is around 200 bits (strictly depends on the remote).
If we consider that the rate is 2-4kbps it lasts nearly for 0.1s, is it a short duration for capturing the preferred RF signal?
TV tuner modules have wide range receiver right? Using a wide-range tuner, switching a gate...
I want to measure frequencies of remote car keys between 300-500 MHz (I think 315 and 433 MHz are standard)
I thought I could use a chip for each antenna.
The accuracy is not strictly specified but I intend to obtain a resolution around 100KHz.
Added after 22 minutes:
Also, for wider...
I am no expert but, as a junior power electronics person I can say that:
The shunt capacitor depends on the ripple allowed but probably around 470uF or so will probably give a smooth output. The diodes and the power MOSFET should be fast switching.
But,
Designing forward, flyback or similar...
Hi,
I want to build a RF circuit, which can measure the frequency of the radio wave. The range is quite wide 100-1000MHz. The accuracy is not that important for the time being.
Also I probably will use multiple antennas whose BW is wide for different regions (like 315MHz, 433MHz).
Having...
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