To reset a converter box from RF out to RF through, first, ensure the device is powered on. Locate the settings menu using the remote control or buttons on the box itself, and navigate to the output or RF settings section. Change the output setting from "RF Out" to "RF Through" and save the changes. Finally, restart the converter box to apply the new settings.
The difference is in the output frequency.
RF Modulator - Convert video and stereo audio from an A/V component into a coaxial cable output Try radioshack.com
To hook up an RF modulator to a DVR, start by connecting the DVR's audio and video output (usually composite or RCA cables) to the input of the RF modulator. Next, connect the RF modulator's coaxial output to your TV's coaxial input. Finally, set the TV to the appropriate channel (usually 3 or 4) that the RF modulator is configured to transmit on, and you should be able to see the DVR's output on the TV. Make sure all devices are powered on and properly configured for best results.
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.
To connect a digital HDTV to a tunerless DVD recorder, first connect the cable box to the RF modulator using the RF output. Then, connect the RF modulator’s output to the DVD recorder’s AV jacks using the appropriate cables (typically composite video and audio cables). Finally, connect the DVD recorder's output to the HDTV using HDMI or composite cables, ensuring both devices are set to their corresponding input/output settings for proper signal transmission.
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.
3
Not generally no. There would be no point. The easiest is to convert the standard yellow video out to coax with an RF modulator
It produces a high SWR (standing wave ratio) that limits the maximum RF (radio frequency) output.
resolution=v output/2^n * Rf/R
resolution=v output/2^n * Rf/R