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IR over Coax
Having mixed results with Terk IR remote control repeaters, I stumbled
onto Channel Vision and Xantech who "inject" the IR signal onto existing house-wired coax and reproduce it at some point down the cox. Unfortunately they don't (seem to) have parts that address how my house is wired... My system is "home-run"... all coax goes to a central closet and are connected to a distribution amplifier... five separate output ports. Anyone know how the Channel Vision or Xantech systems work so I could roll my own (or modify)? ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
IR over Coax
Beware of any of these products when using a cable box or satellite
receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. Jim Thompson wrote: Having mixed results with Terk IR remote control repeaters, I stumbled onto Channel Vision and Xantech who "inject" the IR signal onto existing house-wired coax and reproduce it at some point down the cox. Unfortunately they don't (seem to) have parts that address how my house is wired... My system is "home-run"... all coax goes to a central closet and are connected to a distribution amplifier... five separate output ports. Anyone know how the Channel Vision or Xantech systems work so I could roll my own (or modify)? ...Jim Thompson -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
IR over Coax
On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY**
wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] Thanks for the caveat! Looking at the pricing, it seems high enough to entice _even_me_ to roll my own ;-) ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
IR over Coax
Jim Thompson wrote:
On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY** wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] Thanks for the caveat! Looking at the pricing, it seems high enough to entice _even_me_ to roll my own ;-) http://www.mcminone.com/search.asp?keyword=&restrict=1000201&MODE=1 -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
IR over Coax
Michael A. Terrell wrote:
Jim Thompson wrote: On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY** wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] Thanks for the caveat! Looking at the pricing, it seems high enough to entice _even_me_ to roll my own ;-) http://www.mcminone.com/search.asp?keyword=&restrict=1000201&MODE=1 Or just chuck it all, put a nice bottle of wine on the table and play a card game ;-) -- Regards, Joerg http://www.analogconsultants.com/ |
IR over Coax
On Tue, 08 Jan 2008 18:11:27 GMT, Joerg
wrote: Michael A. Terrell wrote: Jim Thompson wrote: On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY** wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] Thanks for the caveat! Looking at the pricing, it seems high enough to entice _even_me_ to roll my own ;-) http://www.mcminone.com/search.asp?keyword=&restrict=1000201&MODE=1 Or just chuck it all, put a nice bottle of wine on the table and play a card game ;-) Or hop in the sack ;-) ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
IR over Coax
On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY**
wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] I forgot to ask... which brand ultimately worked with the 56KHz subcarrier? ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
IR over Coax
Jim Thompson wrote: On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY** wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] I forgot to ask... which brand ultimately worked with the 56KHz subcarrier? ...Jim Thompson From my order to replace the hidden IR system: Part numbers are from Smarthome site. 1 8134 - 1-Zone Connecting Block (4 Emitter Outs) 1 8194A - 12v Regulated Power Supply 1 CL-8108PP2 - Plasma Proof 40 & 56khz IR Target 3 8170S - Stick-On IR Emitter Note; this is not an "over coax" system. You can hook these up with twisted wire. I suggest you download the instructions from their website to see how far you can extend the IR target. The IR Target device is the "critical" piece as far as operating with most remotes. The connecting block I beleive has the emitter coupled amps to drive up to 4 IR emitters for the cable boxes and receivers. Beware, when you use such a system, you need to make sure that the remote control is not "seen" by both the IR target and the device you are controlling simultaneously or there will be "delay spread" which will corrupt the signalling. In my case, since the devices I am controlling are inside a teak wall cabinet, unless the doors are open, all works fine. If the target were remotely installed in another room, then conceivably, the devices *cable box etc) could be out in the open and the remote would work fine locally. -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
IR over Coax
On Tue, 08 Jan 2008 14:14:26 -0500, **THE-RFI-EMI-GUY**
wrote: Jim Thompson wrote: On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY** wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] I forgot to ask... which brand ultimately worked with the 56KHz subcarrier? ...Jim Thompson From my order to replace the hidden IR system: Part numbers are from Smarthome site. 1 8134 - 1-Zone Connecting Block (4 Emitter Outs) 1 8194A - 12v Regulated Power Supply 1 CL-8108PP2 - Plasma Proof 40 & 56khz IR Target 3 8170S - Stick-On IR Emitter [snip] OK. Those are Xantech parts. What DIDN'T work? ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
IR over Coax
Jim Thompson wrote: On Tue, 08 Jan 2008 14:14:26 -0500, **THE-RFI-EMI-GUY** wrote: Jim Thompson wrote: On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY** wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] I forgot to ask... which brand ultimately worked with the 56KHz subcarrier? ...Jim Thompson From my order to replace the hidden IR system: Part numbers are from Smarthome site. 1 8134 - 1-Zone Connecting Block (4 Emitter Outs) 1 8194A - 12v Regulated Power Supply 1 CL-8108PP2 - Plasma Proof 40 & 56khz IR Target 3 8170S - Stick-On IR Emitter [snip] OK. Those are Xantech parts. What DIDN'T work? ...Jim Thompson Correct, Xantech. Those worked fine, it was another product Smarthome sells called the "Hidden IR System" (much cheaper) that won't work with 56 kHz remotes. The above equipment I bought to piece together a working replacement for the Hidden IR system which did not work. In my application, I am concealing the video devices and need to remote the IR outside a wall cabinet system. -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
IR over Coax
On Tue, 08 Jan 2008 14:14:26 -0500, **THE-RFI-EMI-GUY**
wrote: Jim Thompson wrote: On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY** wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] I forgot to ask... which brand ultimately worked with the 56KHz subcarrier? ...Jim Thompson From my order to replace the hidden IR system: Part numbers are from Smarthome site. 1 8134 - 1-Zone Connecting Block (4 Emitter Outs) 1 8194A - 12v Regulated Power Supply 1 CL-8108PP2 - Plasma Proof 40 & 56khz IR Target 3 8170S - Stick-On IR Emitter Note; this is not an "over coax" system. You can hook these up with twisted wire. I suggest you download the instructions from their website to see how far you can extend the IR target. The IR Target device is the "critical" piece as far as operating with most remotes. The connecting block I beleive has the emitter coupled amps to drive up to 4 IR emitters for the cable boxes and receivers. Beware, when you use such a system, you need to make sure that the remote control is not "seen" by both the IR target and the device you are controlling simultaneously or there will be "delay spread" which will corrupt the signalling. In my case, since the devices I am controlling are inside a teak wall cabinet, unless the doors are open, all works fine. If the target were remotely installed in another room, then conceivably, the devices *cable box etc) could be out in the open and the remote would work fine locally. What I'm wanting to do is control the cable box (in the great room) from both the kitchen and my office ;-) Which is why, after the less-than-stellar-performing RF-link Terk experience, I'm looking into the insert-IR-on-coax systems. ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
IR over Coax
Jim Thompson wrote: On Tue, 08 Jan 2008 14:14:26 -0500, **THE-RFI-EMI-GUY** wrote: Jim Thompson wrote: On Sun, 06 Jan 2008 15:16:02 -0500, **THE-RFI-EMI-GUY** wrote: Beware of any of these products when using a cable box or satellite receiver. I bought a "Hidden IR" system from Smarthome last year and found out that my cable remote used a 56 kHz subcarrier which was higher than the frequency response of the "Hidden IR" system. Ultimately I was able to exchange for different hardware that worked, but the incompatibility was not well advertised in the marketing by Smarthome and I spent several days trying to figure out why the cable remote only worked in a narrow angle from the IR pick up. [snip] I forgot to ask... which brand ultimately worked with the 56KHz subcarrier? ...Jim Thompson From my order to replace the hidden IR system: Part numbers are from Smarthome site. 1 8134 - 1-Zone Connecting Block (4 Emitter Outs) 1 8194A - 12v Regulated Power Supply 1 CL-8108PP2 - Plasma Proof 40 & 56khz IR Target 3 8170S - Stick-On IR Emitter Note; this is not an "over coax" system. You can hook these up with twisted wire. I suggest you download the instructions from their website to see how far you can extend the IR target. The IR Target device is the "critical" piece as far as operating with most remotes. The connecting block I beleive has the emitter coupled amps to drive up to 4 IR emitters for the cable boxes and receivers. Beware, when you use such a system, you need to make sure that the remote control is not "seen" by both the IR target and the device you are controlling simultaneously or there will be "delay spread" which will corrupt the signalling. In my case, since the devices I am controlling are inside a teak wall cabinet, unless the doors are open, all works fine. If the target were remotely installed in another room, then conceivably, the devices *cable box etc) could be out in the open and the remote would work fine locally. What I'm wanting to do is control the cable box (in the great room) from both the kitchen and my office ;-) Which is why, after the less-than-stellar-performing RF-link Terk experience, I'm looking into the insert-IR-on-coax systems. ...Jim Thompson I tried those Pyramid IR- RF links and they were terrible. Far better to go with a wired in approach. The insert IR approach is going to require some sort of "DC" injector to get signal onto and off the coax. Then you have to deal with supplying power at the IR Target's amplifier as well as the IR splitter amp. Personally, I would pull some new wires. -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
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