I cannoty get my IR transmitter to process commands to my hub and emitters, for a scientic atlanta explorer 8300 HDC cable box. My Blue ray player works great with the equipment ; but no response with the cable box.  Any Suggestions? One miffed integrator!!!!! Allan APK Audio

What type of ir system are you using?  Also does it have a frequency adjustment.

Here is a link to some information that may help you.

http://www.snapav.com/catalog/partdetail.aspx?partno=KIT-IR-SMOUNT

Most products from Xantech have an adjustible ir frequency range, it takes a little bit of time, but is not that big of a deal.

You may also find that the Scientific Atlantic Cables boxes having the same model number will operate on two totally different IR ranges.  You can google it to receive more information.

David Williams
A/V Solutions

Alex -

David is right on.  While a benefit for most A/V distribution systems having a mix of audio and video components, there are a couple of cable boxes and satellite receivers that see both bands and reject both as “noise”.  The Explorer series, specifically the HD boxes are notorious for having issues with most IR repeating systems that output over dual IR bands. 

The SA Explorer 8300 in particular needs to see an IR carrier frequency centered at 56K.  You can either check your equipment to see if it can output only in the 56K range, or you can use an in-line IR re-modulator, which attaches between your IR hub and emitter and ensures that only IR signals carried at the higher frequency are sent through to the emitter. 

In the past, as an integrator, I used Russound’s IRREMOD56K, and now, as a representative for Russound, I continue to recommend this product as a solution for this application.

Michael Allbee
Security Solutions, Inc
http://www.4ademo.com

Alex,

never had a problem with the SA8300. Works fine for us using the following manaufacture’s: RTI, Univeral Remote, Russound, Niles and Xantech. We put all our IR flashers in the equipment. You can try flashing with a flooding flasher is your install allows.

As i have heard there are two different IR frequencies used by these boxes.  I had an install a couple of weeks ago where i had to adjust my IR frequency with the Xantech 48085DBKIT.  I had to adjust it several times to get it close enough to the IR range of the Cable Box.  Like i said, the same box has two different IR ranges, Google it…

David Williams
A/V Solutions

IR problems were an issue of the past with an IR system that is on the edge of 30khz or less.  Channel Vision designed a micro processor inside the receive to provide an exact frequency (IE: no adjustments to “tune it in”), so future IR receiver problems will be avoided by using the Channel Vision line; Plasma, LCD, sunlight etc dont affect our products.  You’ll be shocked at how much less we sell our products for, retail is less than dealer price vs. most competitors and it works better… ask an installer that has experienced it.  I personally guarantee it!  http://www.channelvision.com/ or look at our IR at http://www.channelvision.com/products/view/336/57

I just came across an issue with a SA cable box that may have a similar fix?  I used a proficient IR system, and as long as the lights in the bedroom are on, the cable box recieves and actions the commands. Once they turn of the light, they can not change channels with the remote.
Is this still a frequency adjustmet issue, or am I looking at something from another planet?

Question one, Dose it work with the factory remote. If so try moving the flasher away for the eye of the cable box remote.  If you using a master remote make sure the codes they are supplying are good. I have had to sometime learn the codes with the actual remote rather than the supplied codes that the master remote libruary supplies.
If the origional remote works fine but not the master , try covering up the eye or sensor apx 1/2 to 3/4 with black electrical tape. Good Luck

We have used a small piece of window tint over the cable box receiver. 35% I guess it didnt like the really bright emmission. I think it wasonly on the sci. atl. hd box with dvr. The other boxes were cool. Also had a problem with a directv dvr. Same principle applied. Im sure you already figured it out. This is more for anyone currently having this problem.

Alex, here in the Tampa area our Brighthouse Scientific Atlanta 8000 series boxes have a 3.5mm IR jack in the back which I use to connect RTI controllers and have not had any issues. This also prevents callbacks when the flasher falls off and looks better then taping or gluing the flasher to the front of the box. Hope this helps.