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Programmable RF modulator

Discussion in 'Beginner Electronics' started by [email protected], Feb 2, 2007.

  1. Guest

    Hi all.

    I'm not an expert in electronics, I'm a software developer - so bear
    with me. I have a question, however, for those who are experts in
    electronics - so any input (any) would be highly valued.

    I understand the very basics of an RF modulator or RF switch, I think
    - though that's about the extent of it. An RF modulator/switch
    basically allows me to turn a non-RF single into some RF carrier
    signal that can be consumed by, say, a television. By placing a RF
    modulator between a coaxial that would normally go into a television,
    and telling the modulator what channel I wish to transmit on, I can
    get the TV tuner to pick up my signal instead of the one coming from
    the wall (sort of like the old Nintendos - the RF modulator at the end
    of those).

    In looking around, however, I cannot find any that are programmable
    through a serial interface, a USB interface, etc. Every RF modulator I
    can find online forces people to punch the channel they wish to send
    on via some kind of interface on the box itself. I woud like to
    control what output channel the RF modulator lets me send to
    programmatically, or from within my software.

    Is anyone aware of such a beast? And if so, can I have some pointers/
    websites/etc. Any information would be valued, even if it is telling
    me this is the wrong newsgroup.

    Thanks so much in advance,

    Ben
     
  2. Jack

    Jack Guest

  3. jasen

    jasen Guest

    many VCRs include one (those with UHF output mainly)
    it's scontrolled by the software in the vcr...

    I'm not aware of one that's ready to use off-the-shelf.

    Bye.
    Jasen
     
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