1550nm CATV EDFA: WE-1550
... 2. Low-noise Pump Laser of famous brand, import high performance Erbium-doped Fiber, perfect and Microcomputer Automatic Controlled System are built in the WE-1550 Series 1550nm CATV EDFA to ensure the excellent performance. 3. We developed front-type, line type, power type and some other types in o ...
... 2. Low-noise Pump Laser of famous brand, import high performance Erbium-doped Fiber, perfect and Microcomputer Automatic Controlled System are built in the WE-1550 Series 1550nm CATV EDFA to ensure the excellent performance. 3. We developed front-type, line type, power type and some other types in o ...
Bioengineering 508: Physical Aspects of Medical Imaging Nature of
... Projection--> 2D imaging, single plane, no depth information Tomographic (“tomo” = slice, graphy=image) --> volumetric ...
... Projection--> 2D imaging, single plane, no depth information Tomographic (“tomo” = slice, graphy=image) --> volumetric ...
AN1052 - Diodes Incorporated
... to unstable loop and burst-mode frequency as shown in Figure 14. There must be audible noise frequency (normally from 2kHz to 20kHz) in the unstable loop. The noise from unstable loop can be eliminated by adjusting the loop compensation. For burst-mode frequency, which is unavoidable, one way is to ...
... to unstable loop and burst-mode frequency as shown in Figure 14. There must be audible noise frequency (normally from 2kHz to 20kHz) in the unstable loop. The noise from unstable loop can be eliminated by adjusting the loop compensation. For burst-mode frequency, which is unavoidable, one way is to ...
+ v if
... The previous example uses reasonable numbers, and the result, 15.7 dB, is not a respectable value for dynamic range. If the radio’s maximum range is 50 miles, then the IF will clip at ranges less than 1.5 miles, and this would be unacceptable. The solution is to provide a means for reducing the gain ...
... The previous example uses reasonable numbers, and the result, 15.7 dB, is not a respectable value for dynamic range. If the radio’s maximum range is 50 miles, then the IF will clip at ranges less than 1.5 miles, and this would be unacceptable. The solution is to provide a means for reducing the gain ...
RF2044A
... 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 ...
Catalogue - Pyrotech Electronics Udaipur
... Mill Temp is a RF temperature monitoring system with a 4-20mA output. It consists of a small battery powered RF transmitter that digitally sends temperatures obtained from a standard PT100 platinum resistive sensor mounted in the mill shell or diaphragm. The RF receiver is then mounted nearby temper ...
... Mill Temp is a RF temperature monitoring system with a 4-20mA output. It consists of a small battery powered RF transmitter that digitally sends temperatures obtained from a standard PT100 platinum resistive sensor mounted in the mill shell or diaphragm. The RF receiver is then mounted nearby temper ...
样章下载
... History and application An early description of phase lock was published by de Bellescize in 1932 and treated the synchronous reception of radio signals. Superheterodyne receivers had come into use during the ...
... History and application An early description of phase lock was published by de Bellescize in 1932 and treated the synchronous reception of radio signals. Superheterodyne receivers had come into use during the ...
Lab 3 - Broadband RF Amplifier
... There are basically two approaches that can be taken when designing an amplifier that must operate with reasonable gain and good input/output impedance match over a wide bandwidth. One approach is to use impedance transformation networks at the input and output of the active network and to design the ...
... There are basically two approaches that can be taken when designing an amplifier that must operate with reasonable gain and good input/output impedance match over a wide bandwidth. One approach is to use impedance transformation networks at the input and output of the active network and to design the ...
guide_pc2181e
... Gain: Large bandwidth with lower gain: Don’t saturate output voltage using higher input voltage and higher gain ...
... Gain: Large bandwidth with lower gain: Don’t saturate output voltage using higher input voltage and higher gain ...
Project Report
... B. Power Amplifier – The power amplifier is used to increase the amplitude of the generated signal. This device ensures effective transmission over the antenna to the SAW sensor. It can convert a low-power radio-frequency signal to a larger signal of significant power, typically for driving the ant ...
... B. Power Amplifier – The power amplifier is used to increase the amplitude of the generated signal. This device ensures effective transmission over the antenna to the SAW sensor. It can convert a low-power radio-frequency signal to a larger signal of significant power, typically for driving the ant ...
T0A08 What is one way to recharge a 12-volt lead-acid
... connection of a mobile transceiver's power cable be connected? A. At the battery or engine block ground strap B. At the antenna mount C. To any metal part of the vehicle D. Through the transceiver’s mounting bracket ...
... connection of a mobile transceiver's power cable be connected? A. At the battery or engine block ground strap B. At the antenna mount C. To any metal part of the vehicle D. Through the transceiver’s mounting bracket ...
ECE490_02
... (L4) is utilized to couple the output to the antenna. All coils are wound on standard 1/4-in. coil forms with No. 22 AWG wire. Carbonyl J 1/4- 3/8in.-long cores are used in all coils. Secondaries are overwound on the bottom of the primary winding. The cold end of both windings is the start (bottom ...
... (L4) is utilized to couple the output to the antenna. All coils are wound on standard 1/4-in. coil forms with No. 22 AWG wire. Carbonyl J 1/4- 3/8in.-long cores are used in all coils. Secondaries are overwound on the bottom of the primary winding. The cold end of both windings is the start (bottom ...
Extremely Low Frequency Plasmons in Metallic Microstructures
... twice the lattice spacing. Therefore Bragg diffraction effects would interfere with our simple plasmon picture. Choosing a small radius ensures that diffraction occurs only at much higher frequencies. ...
... twice the lattice spacing. Therefore Bragg diffraction effects would interfere with our simple plasmon picture. Choosing a small radius ensures that diffraction occurs only at much higher frequencies. ...
awa_3-7490r - KevinChant.com
... The A.W.A. U.H.F. Signal Generator, types 8R7490 and 9R7490 employs in its r-f sections the special technique necessitated by the frequency band in which they operate. The r-f oscillator is of the Hartley type, using an acorn triode, and a short circuited transmission line forms the tank circuit. Th ...
... The A.W.A. U.H.F. Signal Generator, types 8R7490 and 9R7490 employs in its r-f sections the special technique necessitated by the frequency band in which they operate. The r-f oscillator is of the Hartley type, using an acorn triode, and a short circuited transmission line forms the tank circuit. Th ...
CONTROL OF ELECTRICAL APPLIANCES THROUGH TV REMOTE
... c o n t r o l l i n g s ys t e m e t c . , c a n a l s o be controlled using this principle. El e c t r i c a l l o a d s c a n e a s i l y b e c o n t r o l l e d a t a t i me f r o m a c e n t r a l l o c a t i o n ( c o n t r o l r o o m) without having any physical connection between loads and c ...
... c o n t r o l l i n g s ys t e m e t c . , c a n a l s o be controlled using this principle. El e c t r i c a l l o a d s c a n e a s i l y b e c o n t r o l l e d a t a t i me f r o m a c e n t r a l l o c a t i o n ( c o n t r o l r o o m) without having any physical connection between loads and c ...
Heterodyne
Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.