https://archive.fo/rhp9W
Zenith BASE TAC CONNECTORnovel approach us1ng
both a two position RF switch device and
the Video/Audio outputs of a baseband
CATV decode1· through the VCR' s built in
Tuner/Aux. input selector. Some new
VCRs even allow the unattended selection
of "Tuner" or "Auxiliary" inputs as part
of the multi-event programming. With
such a VCR, this system allows for all
of the desired functions. In operation,
however, it is not as simple as it
looks. Although there 1s apparently
only one two-position RF switch to be
concerned with, there are two more twoposition switches in the VCR <TV;VCR
switch and Tuner/ Aux. swi t.ch) which must
be manipulated.
BASE .IA.C
Perhaps the ultimate and Jo~est cost
VCR-Cable interface is the "Afterburner"
approach. This system is so named because the premium pro~ram descrambling
IS performed after the subscr1ber receivin!l; equipment's tuner-IP, and demodulation stages. The system depends upon
Baseband scrambling techniques, in-band
addressing data, and home equipment capable of being adapted. The Zenith
BASE-TAG product is a good example of
this technique and is compatible with
Zen1th' s Z-TAC SSAVI scrambling.