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RF Signal Detector

RF Signal Detector

+

3

2

6

4

5

-

+

IC1

LM386

TP1

HIGH

HIGH

LOW

LOW

S1 (B)

S1 (A)

+

R3

10K

R2

680K

C2

0.33μ

T1

BC550

R1

1k

D2

D1

D1, D2 = 1N4148

S1 = S1(A), S1 (B) = DOUBLE -POLE DOUBLE-THROW SWITCH

TP0

R4

1K

R5

10Ω

C7

0.33μ

LS1

8Ω , 0.5W

SPEAKER

C4

470μ

25V

TP4

C3

0.33μ

TP3

C5

0.33μ

C6

470μ

25V

LED1

R6

1K

S2

ON/OFF

COM1

C1

0.33μ

ANT.

TP1

RF Signal Detector

1
0
0
publish time: 2020-09-29
Circuit Everyday

This simple circuit can be used to track the presence of radiofrequency signals and electromagnetic noise. Whether in residential areas, offices, or shops, or when testing and designing RF circuits, it can be a useful tool.

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