Amateur Radio Technician Class Element 2
... If a receiver mixes a 13.800 MHz VFO with a 14.255 MHz received signal to produce a 455 kHz intermediate frequency (IF) signal, a 13.345 MHz signal will produce an image response in the receiver. (G8B02) • To prevent this many receivers use a tuned preamplifier before the mixer input (sometimes ca ...
... If a receiver mixes a 13.800 MHz VFO with a 14.255 MHz received signal to produce a 455 kHz intermediate frequency (IF) signal, a 13.345 MHz signal will produce an image response in the receiver. (G8B02) • To prevent this many receivers use a tuned preamplifier before the mixer input (sometimes ca ...
highpass filter - Jejaring Blog Unnes
... polynomial, is a value that results in a zero value of the function. A pole, as a root of the denominator polynomial, is a value for which the function is infinite. ...
... polynomial, is a value that results in a zero value of the function. A pole, as a root of the denominator polynomial, is a value for which the function is infinite. ...
L-FM(17)XXX
... allowed us to dimension the window type. Under these conditions, due to the time-frequency compromise, we have to use a minimum channel spacing of 93.75 Hz. (We work with 51 channels; the central channel is not used, partly because of the insufficient rejection of the local oscillator, which is used ...
... allowed us to dimension the window type. Under these conditions, due to the time-frequency compromise, we have to use a minimum channel spacing of 93.75 Hz. (We work with 51 channels; the central channel is not used, partly because of the insufficient rejection of the local oscillator, which is used ...
modulation5 - WordPress.com
... A. Generate only even harmonics B. Generate only odd harmonics C. Increase the efficiency D. Amplify of an AM signal 212. The term used to refer to the condition where the signal from a very strong station are superimposed on other signal being received. A. Cross-modulation interference B. Intermodu ...
... A. Generate only even harmonics B. Generate only odd harmonics C. Increase the efficiency D. Amplify of an AM signal 212. The term used to refer to the condition where the signal from a very strong station are superimposed on other signal being received. A. Cross-modulation interference B. Intermodu ...
How to make Frequency plots with Pspice
... be sine waves of the same frequency. The only differences between the source sine wave and a response sine wave will be the magnitude difference and the phase shift. Bode plots are graphs that show the variation in gain (magnitude difference) and phase shift produced by a circuit, as the frequency i ...
... be sine waves of the same frequency. The only differences between the source sine wave and a response sine wave will be the magnitude difference and the phase shift. Bode plots are graphs that show the variation in gain (magnitude difference) and phase shift produced by a circuit, as the frequency i ...
2007 General Pool Q and A - G7 Only
... What circuit is used to process signals from the IF amplifier and BFO and send the result to the AF amplifier in a single-sideband phone superheterodyne receiver? Product detector G7A10 What is an advantage of a crystal controlled transmitter? Stable output frequency G7A11 What is the simplest combi ...
... What circuit is used to process signals from the IF amplifier and BFO and send the result to the AF amplifier in a single-sideband phone superheterodyne receiver? Product detector G7A10 What is an advantage of a crystal controlled transmitter? Stable output frequency G7A11 What is the simplest combi ...
VLF Designs specializing in Analog Telemetry Earthquake
... narrow band crystal filters with a wider band monolithic ceramic filter. The 2nd IF ceramic filter has been replaced with a linear phase response unit in order to insure very little distortion in the demodulated signal, thus allowing the use of multiple carriers with little or no intermodulation. A ...
... narrow band crystal filters with a wider band monolithic ceramic filter. The 2nd IF ceramic filter has been replaced with a linear phase response unit in order to insure very little distortion in the demodulated signal, thus allowing the use of multiple carriers with little or no intermodulation. A ...
UMS-800-A16-G
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
16spMid1b
... numerical answers). What is the gain if the transistor is used with a resistive load of 1M? transconductance output resistance Av, intrinsic Av, resistive load 4) You have biased the amplifier below with a particular input overdrive voltage Vov. Both devices are in saturation, and the quadratic mod ...
... numerical answers). What is the gain if the transistor is used with a resistive load of 1M? transconductance output resistance Av, intrinsic Av, resistive load 4) You have biased the amplifier below with a particular input overdrive voltage Vov. Both devices are in saturation, and the quadratic mod ...
KU Band Up Convertor - C-DOT Centre for Development of Telematics
... The CDOT Ku Band Up Converter KU-UCN-70/140 is designed to give out RF frequencies in the range of 13.75 GHz to 14.5 GHz. It has excellent P1 dB of 10 dBm and IF to RF gain of 15 dB. The gain can be varied over 20 dB in steps of 0.5 dB. Frequency synthesis is in steps of 125 KHz with excellent phase ...
... The CDOT Ku Band Up Converter KU-UCN-70/140 is designed to give out RF frequencies in the range of 13.75 GHz to 14.5 GHz. It has excellent P1 dB of 10 dBm and IF to RF gain of 15 dB. The gain can be varied over 20 dB in steps of 0.5 dB. Frequency synthesis is in steps of 125 KHz with excellent phase ...
PowerPoint-presentation
... • High frequency notches increases with the number of lamps but the increase seems not to be linear. The STFT shows that these signals is found in the lower frequency range ...
... • High frequency notches increases with the number of lamps but the increase seems not to be linear. The STFT shows that these signals is found in the lower frequency range ...
30 kHz - 300 kHz
... of AIRDUCER™ Transducers Designed for fast and easy evaluation of Airmar’s Ultrasonic Transducers, we are pleased to offer our versatile, T1 Transceiver Module. The entire frequency range of 30 kHz to 300 kHz Airmar transducers can be driven by the T1. With transmit voltage output of 400 Vpp and adj ...
... of AIRDUCER™ Transducers Designed for fast and easy evaluation of Airmar’s Ultrasonic Transducers, we are pleased to offer our versatile, T1 Transceiver Module. The entire frequency range of 30 kHz to 300 kHz Airmar transducers can be driven by the T1. With transmit voltage output of 400 Vpp and adj ...
Superheterodyne receiver
In electronics, a superheterodyne receiver (often shortened to superhet) uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original radio carrier frequency. It was invented by US engineer Edwin Armstrong in 1918 during World War I. Virtually all modern radio receivers use the superheterodyne principle. At the cost of an extra frequency converter stage, the superheterodyne receiver provides superior selectivity and sensitivity compared with simpler designs.