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Lm358 as an RF "amplifier" : possible ?

Klodo

Dec 12, 2021
2
Joined
Dec 12, 2021
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2
Hello ,

can we amplify a small signal of 433Mhz by an amplifier based on an lm358 (which its 700khz of BW) ??
I got this question while watching this video (in the video the guy went even further than my question; he made it into a mobile phone wave detector) ;


Thank you in advance for your answers.
 

bertus

Moderator
Nov 8, 2019
2,642
Joined
Nov 8, 2019
Messages
2,642
Hello,

No, the LM358 has only a bandwidth of 1 MHz, on 1 MHz the gain is only 1.
There is not even a selective circuit and RF detector shown.
It will respond to ALL RF signals very close by.

bertus
 

Klodo

Dec 12, 2021
2
Joined
Dec 12, 2021
Messages
2
Hello,

No, the LM358 has only a bandwidth of 1 MHz, on 1 MHz the gain is only 1.
There is not even a selective circuit and RF detector shown.
It will respond to ALL RF signals very close by.

bertus

Ok , i'ts good for me !
Thks
 
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