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What difference between RF power output watt and electrical power output watt?
The difference is in the output frequency.
What is an RF adaptor?
RF Modulator - Convert video and stereo audio from an A/V component into a coaxial cable output Try radioshack.com
What happen if the value of the dc supply is changed in amplitude modulation?
The rf output voltage should be proportional to the signal voltage in AM. A change in the DC supply voltage should also cause a proportional change to the rf output voltage.
What if rf input and outputs are reversed on a TWT?
If the RF input and output are reversed on a traveling wave tube (TWT), the amplifier will not function correctly. The input signal would not be amplified but instead sent back out through the input port. This would result in no signal being output through the intended output port.
The maximum allowable RF output power for a mobile cellular phone is how many watts?
3
Is it possible to convert YPbPr output to Coaxial output?
Not generally no. There would be no point. The easiest is to convert the standard yellow video out to coax with an RF modulator
What occurs whenever a reflected RF signal combines with the main signal?
It produces a high SWR (standing wave ratio) that limits the maximum RF (radio frequency) output.
How do you find resolution of r 2r ladder?
resolution=v output/2^n * Rf/R
How do you find resolution of r-2r ladder?
resolution=v output/2^n * Rf/R
When would a mixer in an AM superhet receiver output be zero?
The mixer output should be a signal at the IF frequency ... generally 455 KHz in an AM radio. It's the difference-frequency between the onboard local oscillator and the frequency of whatever's coming down from the antenna. Expect no RF energy from the mixer when there's no RF energy in the passband of the RF amp section ahead of the mixer ... i.e. nothing being received. If the RF section is wide open across the band, or there IS no RF section and the antenna goes straight to the mixer, and there's no mixer output, then this indicates that either you're on the far side of the moon receiving nothing across the whole AM band, or else your antenna input is grounded and the mixer is shielded.
What is the meaning of in-out isolation in rf switch?
The in-out isolation is the attenuation between input and output ports of the switch when embedded in a circuit, when the switch control voltage corresponds to the "OFF" state of the output port.
What is an Rf?
AN RF Isolator is really a three port device called an "RF Circulator" in which one port is always terminated correctly with a suitable load. RF Isolator are usually passive and are bandwidth limited.Typical use: It used in the output of a RF Transmitters High Power Amplifiers but before a BP/ HP filter and the antenna.Typical Function: To isolate a TX RF Power Amplifier output from receiving RF feedback from external sources. i.e. In this case the RF coupled in from other Antenna systems in close proximity. Such undesired RF feedback would cause intermodulation / harmonics products to be generated within the RF amplifier and consequently be re-radiated out along the the desired RF signal to the antenna and possibly cause interference. Often used on all TX's in two way radios sites to avoid local IM.SIMPLIFIED: In other words an Isolator passes RF in one direction but attenuates RF in the other direction.Note: The RF Isolator is slightly non linear and therefore it can cause low levels of intermodulation / harmonics. So it is good practice to place either a basic Band Pass or High pass filter after the RF Isolator to attenuate the unwanted IM products.Tuning these RF Circulators / Isolators correctly requires a suitable network analyzer or combination of RF Bridge / Spectrum Analyzer with Tracking generator.
