Technology Labs
ACL-FD: Frequency Demodulation Receiver Kit
1) Dedicated Frequency Demodulation Receiver Trainer for practical study of FM reception.
2) Includes complete FM receiver and demodulation stages on a single trainer board.
3) Built-in limiter and discriminator/demodulator sections.
4) These are the key FM demodulation methods provided on the board :
Quadrature Detector
PLL Detector Foster-Seeley Discriminator
Detunned Resonance Detector
4) Multiple test points are provided for observing signals at different stages.
5) Includes fault-switch provisions for troubleshooting and fault-analysis exercises.
6) Mobile based interactive e-manual.
2) Includes complete FM receiver and demodulation stages on a single trainer board.
3) Built-in limiter and discriminator/demodulator sections.
4) These are the key FM demodulation methods provided on the board :
Quadrature Detector
PLL Detector Foster-Seeley Discriminator
Detunned Resonance Detector
4) Multiple test points are provided for observing signals at different stages.
5) Includes fault-switch provisions for troubleshooting and fault-analysis exercises.
6) Mobile based interactive e-manual.
1) Foster-seely detector
i) Operating frequency : Adjustable from 400 KHz ~ 500 KHz
ii) Input amplitude : 1Vpp
2) Ratio discriminator detector
i) Operating frequency : Adjustable from 400 KHz ~ 500 KHz
ii) Input amplitude : 1Vpp
3) Phase lock loop detector
i) Operating frequency : Adjustable from 400 KHz ~ 500 KHz
ii) Input amplitude : 1Vpp
4) Phase detector and FM quadrature detector
i) Operating frequency : Adjustable from 400 KHz ~ 500 KHz
ii) Input amplitude : 1Vpp
5) Amplitude limiter
i) Operating frequency : 455 KHz
ii) Input amplitude : 0.5 ~ 5 Vpp
iii) Output limited amplitude : 1.5 Vpp
6) Low pass filter
i) 4ᵗʰ order butterworth filter
ii) Cut-Off frequency : 3.4 Khz
7) Audio output
i) Amplifier with speaker
ii) Audio amplifier gain : 20dB
8) Switch faults
i) 4 switch faults are provided on board to study different effects on circuit
9) Interconnection
i) 2 mm banana socket
10) Test points
i) 29 test points are provided on board to observe intermediate signals
10) Power supply
i) GND, +5V, +12V, -12V
i) Operating frequency : Adjustable from 400 KHz ~ 500 KHz
ii) Input amplitude : 1Vpp
2) Ratio discriminator detector
i) Operating frequency : Adjustable from 400 KHz ~ 500 KHz
ii) Input amplitude : 1Vpp
3) Phase lock loop detector
i) Operating frequency : Adjustable from 400 KHz ~ 500 KHz
ii) Input amplitude : 1Vpp
4) Phase detector and FM quadrature detector
i) Operating frequency : Adjustable from 400 KHz ~ 500 KHz
ii) Input amplitude : 1Vpp
5) Amplitude limiter
i) Operating frequency : 455 KHz
ii) Input amplitude : 0.5 ~ 5 Vpp
iii) Output limited amplitude : 1.5 Vpp
6) Low pass filter
i) 4ᵗʰ order butterworth filter
ii) Cut-Off frequency : 3.4 Khz
7) Audio output
i) Amplifier with speaker
ii) Audio amplifier gain : 20dB
8) Switch faults
i) 4 switch faults are provided on board to study different effects on circuit
9) Interconnection
i) 2 mm banana socket
10) Test points
i) 29 test points are provided on board to observe intermediate signals
10) Power supply
i) GND, +5V, +12V, -12V
1) Study of FM demodulators
2) Study of Foster seeley detector
3) Study of Ratio detector
4) Study of Phase locked loop detector
5) Study of Quadrature detector
6) Study of phase demodulator
7) Voice reception on various demodulation methods
8) Switch faults
2) Study of Foster seeley detector
3) Study of Ratio detector
4) Study of Phase locked loop detector
5) Study of Quadrature detector
6) Study of phase demodulator
7) Voice reception on various demodulation methods
8) Switch faults
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