Avrdude Software Download. What is it you're trying to accomplish with the RF modulator? The R15 has a built-in RF output, the VCR probably has one and the DVD player may have one, so the purpose of the RF modulator isn't clear. What inputs are available on the TV? More information on your equipment (make/model) would help determine what your options are. The Eclipse Graphical Editing Framework Gef Pdf. Generally, the R15, VCR and DVD player would all have their own direct connections to the TV, with possibly a connection from the R15 to the VCR if you want to record DirecTV programs to tape. If the TV doesn't have enough inputs, you might need an A/V selector of some kind to select the various sources.