Path: utzoo!attcan!uunet!husc6!mailrus!purdue!i.cc.purdue.edu!h.cc.purdue.edu!s.cc.purdue.edu!aic
From: aic@s.cc.purdue.edu (George A. Basar)
Newsgroups: sci.electronics
Subject: Cable Controllers
Keywords: cable controllers,infra-red
Message-ID: <3542@s.cc.purdue.edu>
Date: 7 Sep 88 23:07:51 GMT
Organization: Purdue University
Lines: 16

Problem: I have acquired a second color t.v. that I wish to put in my bedroom,
	 being the lazy programmer that I am.(My PC sits right next to the bed
	 also).  I've built a relay for the remote control of the cable 
	 converter and it works fine except for on hitch.  The relay doesn't
	 talk to the converter box.  I basically have an I.R. detector
	 driving some logic which translates the signal to digital, then wires
	 that to the emitter(815nm) which sits in front of the cable box
	 (very close proximity).
Question: Why doesn't this work?
	    a.) Wrong frequency of I.R. emitter
	    b.) Some type of optical filtering
	    c.) I am totally off base on my design(always a possibility since
		I am a programmer and not an EE)
Helpful hints are welcome and appreciated in advance.
					Thanx
					George