Term
Passive Filters
active Filters |
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Definition
| What are the two primary filter categories? |
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Term
| stability,inexpensive, no power consumption |
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Definition
| The benefits of passive filters include the following: |
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Term
| ability to shape filter's response. used to isolate or buff signals,can be used to impedance matching |
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Definition
| Name three benefits of using active filters |
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Term
| low pass, high pass, band pass, band reject |
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Definition
| Name the four types of filters: |
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Term
| 70.7% or max voltage times .707 |
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Definition
| At what voltage level is the FCO normally located on a response curve? |
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Term
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Definition
| A low pass filter has a peak voltage of 6VPP. What would the FCo voltage be? |
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Term
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Definition
| A graphical representation of how accurate or broad the effectiveness of the filter is called a ________ _____. |
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Term
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Definition
| What is the normal frequency for the input signal into the AM detector circuit? |
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Term
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Definition
| What is FCo in a response curve? |
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Term
| Resistor on top and capacitor on bottom. |
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Definition
| What does a low pass filter looks like? |
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Term
| Capacitor on top looking like an H and the resistor on bottom. |
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Definition
| What does the high pass filter look like? |
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Term
| A low pass filter allows lower frequencies and block or stopband the higher frequencies. |
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Definition
| explain a low pass filter. |
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Term
| high pass filter will allow the higher frequencies through but block the lower frequencies from getting through. Also the capacitor on top of the filter look like a H for high block all low like or dc like current. |
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Definition
| Explain a High pass filter. |
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Term
| Band pass filter will allow a certain range of frequencies to be passed and block or stop band the rest. |
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Definition
| Explain a band-pass filter? |
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Term
| Band-reject filter will block a certain range of frequencies and allow all others through. |
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Definition
| Explain a Band-Reject filter. |
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Term
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Definition
| _______________ is the act of extracting the original information from a carrier signal. |
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Term
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Definition
| what is an electronic circuit that accepts a modulated signal and recovers the intelligence. |
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Term
AM: AM Detector
FM: Quadrature detector or discriminator |
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Definition
| What is a demodulator called in am and fm circuits |
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Term
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Definition
| the simplest detector used in an AM receiver is the ____________. |
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Term
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Definition
| Depending on the orientation of the diode detector, either the ______ or _______ portion of the signal is extracted. |
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Term
| positive signal is able to get through which means the USB or upper side band and the most positive part of the carrier signal is allowed through. |
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Definition
| speaker of the diode detector facing the input signals means what? |
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Term
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Definition
| the process is complete once the audio signal is amplified and sent to the speaker. What circuit does this? |
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Term
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Definition
| what converts the electrical signal back into sound waves. |
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Term
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Definition
| what circuit or feature utilizes a feedback method of testing the signal in the detector and adjusting the RF and IF Amps to maintain a set level. |
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Term
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Definition
| The volume control for a receiver is considered a _______ ______ _______ circuit. |
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Term
| squelch or muting circuit |
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Definition
| commonly referred to as a muting circuit, is used to keep the receiver audio turned off when a signal is not present. |
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Term
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Definition
| If the gain of a signal is strong enough, it will pass above the threshold. This is commonly referred to as ____________. |
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Definition
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Term
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Definition
| manual gain control is what commonly referred as? |
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Definition
| What is commonly called the muting circuit? |
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Term
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Definition
| What is commonly called a envelope detector? |
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Term
| negative part of carrier signal and LSB or lower side bus |
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Definition
| if the speaker of a diode detector is facing the output of the circuit |
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