RF Modulator
(150-1283)                  Connections                Faxback Doc. # 18685

Your Radio Shack RF Modulator is designed to convert the separate audio
and video signals (from a video camera, computer, portable VCR, satellite
receiver, etc.) into normal VHF TV signals that you can see on any regular
TV set.

PARTS REQUIRED

You need the following items, not supplied with your RF Modulator, to
connect it between a video input source (video camera, satellite receiver,
etc.) and your TV.

    Two audio/video (not stereo) shielded cables with phono connectors.

    Two 75-Ohm coaxial cables with F-type connectors.

    If your TV does not have a VHF 75-Ohm F-connector, you will also need a
    75-Ohm-to-300-Ohm matching transformer.

Your local Radio Shack sells a wide selection of each of these items.

Note to CATV Installer:

This reminder is provided to call the CATV system installer's attention to
article 820-40 of the NEC that provides guidelines for proper grounding 
and, in particular specifies that the cable ground shall be connected to
the building's grounding system, as close as practical to the point where
the cable enters the house.

CONNECTIONS

Follow these steps to connect your RF Modulator.

1.  Connect an audio/video cable between the video output jack on your
    video source and the RF Modulator's VIDEO IN jack.

2.  Connect another audio/video cable between the audio output jack on your
    video source and the RF Modulator's AUDIO IN jack.

3.  Connect the 75-Ohm coaxial cables to the RF Modulator following these
    guidelines:

    If your TV is already connected to another VHF input source (such as
    cable TV, VCR, etc):

    a.  Disconnect the input source's 75-Ohm cable from the TV's 75-Ohm
        VHF input terminal, and reconnect it to the RF Modulator's
        ANT IN terminal.

    b.  Then add a 75-Ohm coaxial cable connected between the TO TV 
        terminal on the RF Modulator and 75-Ohm VHF input terminal on
        your TV.

    If your TV is not already connected to another VHF source:

    a.  Connect the input source's (antenna, cable TV, VCR, etc.) 75-Ohm
        cable to the RF Modulator's ANT IN terminal.

    b.  Connect a 75-Ohm coaxial cable between the TO TV terminal on the
        RF Modulator and the 75-Ohm VHF input terminal on your TV.

    Note:  If your TV has only 300-Ohm VHF screw terminals, use a 
           75-Ohm-to-300-Ohm matching transformer to complete the
           connection.

4.  Plug the RF Modulator's power cord into a standard AC outlet.


(CS 12/4/95)