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1 vote

Piezo electric buzzer as a crystal earpiece?

The piezo discs are alike. The problem is in the naming that people use of the component. Many people say a piezo buzzer even if they just mean a piezo disc. The buzzer circuit just is a circuit that ...
Justme's user avatar
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5 votes

Why use a loopstick rather than a choke for MW radio frequency reception?

That coil serves two purposes: antenna and resonator (the resonator may require an associated capacitor). A choke is a terrible antenna, but may have lighter weight than a loopstick's ferrite. Andy's ...
glen_geek's user avatar
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2 votes
Accepted

Why use a loopstick rather than a choke for MW radio frequency reception?

why do medium wave (AM) radios use a ferrite rod rather than a choke to tune into radio stations? For long/medium wave reception what "we" want is a diameter that is as large as is possible....
Andy aka's user avatar
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2 votes
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Why won't the TL084 amplify the RF output of a tank circuit?

TL084 has gain bandwidth product around 3 MHz, That makes available voltage gain at 10kHz a few hundred. If a circuit can amplify a 10mV injected signal to about 6V, why does it not amplify the ...
glen_geek's user avatar
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2 votes

Why won't the TL084 amplify the RF output of a tank circuit?

Your design has an error. You are using the left op-amp to amplify the tank AC signal by about 100 then, you are feeding that signal to a 2nd op-amp on the inverting input but, that 2nd op-amp does ...
Andy aka's user avatar
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0 votes
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RF signal chain gain

RSRP is short for Reference Signal Received Power, used when measuring 4G LTE networks. A cellular phone or another LTE-equipped device would display signal strength in RSRP, measured 0dBm (best ...
mohammadsdtmnd's user avatar
0 votes

RF signal chain gain

Radio transmitters have the antenna as the last stage and engineers can well calculate the strength of the signal which is fed to the antenna. And they do the same for every stage before the antenna. ...
oneprivate's user avatar
1 vote

RF signal chain gain

In radio frequency circuits which contains antenna. We don't know the exact amplitude (though instead of amplitude they engage power amplitude). Are you asking how to measure the power delivered by ...
The Photon's user avatar
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1 vote

RF signal chain gain

In low-frequency circuits were often interested in voltages and in many cases can largely ignore current and impedance. However in RF circuits impedance matching is much more important and it’s more ...
Frog's user avatar
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