I have the MX-3000 and the MRF-300. They have been working just fine for about a month. Recently I got a under the cabinet TV for the kitchen. I don't have a satellite connection there and instead of putting holes in my walls, I decided to buy an a/v sender/receiver set. First I tried the radio shack one, 2.4 Ghz. My house phones caused way to much interference, so I then got the RF Link 5.8 Ghz set. I set it up and it worked fine.

I set it up in a different room then where I have the MRF-300 and in fact the MX-3000 is not used to control anything in that room. The problem was noted when my wife watching tv in the kitchen(which was getting it's a/v signal from the bedroom) and I was watching TV in the living room. As I channel surfed with the MX-3000 w/mrf, the TV in the kitchen followed.

I have my remote and mrf set to channel 2 and the RF Link to channel 3. Can anyone think of any reason why my MX-3000 is controlling a cable box in another room that is not set up with any MRF's, and is definetely out of IR line of sight.

Thanks as Always

It's safe to assume frequency is not an issue as the MRf kit operates at 418 mhz.

My first guess is that the MX-3000 is not set to RF only and/or the front blaster is turned on in the mrf-300. When you control the living room cable box with the mx-3000, the IR pickup on the RF link in the kitchen is getting the IR stream from the remote and/or the blaster on the mrf-300 and sending it to the cable box in the bedroom.

That answers one of my questions. So it's probably not a RF problem, but how can IR go through a wall. Does IR bounce around of walls? The IR blaster is off. The RF Link in the kitchen is 20 ft away behind a wall. Could IR penetrate a wall or do you think that it's just bouncing around?

IR will bounce around. I have noticed that the MX3000 has a strong IR emitter as well. Much stronger then my old Pronto TSU6000. I actually have had it work from another room but with only one bounce. It would be by pure chance though that all the angles lined up enough for the signal to travel more then one bounce.

IR can't penetrate a solid wall. Can it be reflected around the room? Sure.

I've installed front projection systems where we can bounce the IR signal off the screen and hit the projector and lutron dimmer.

Here's a way to find out, have your wife completely cover the IR pickup on the RF link in the kitchen with her hand and go into your living room and change channels. What happens now?

You can also cover the IR window of the MX-3000 to be 100% sure there is no IR output. I usually cover it with my hand or use a pillow, if one is available.

Please let us know what you find.



Thank you,
Damon DG
= = = = =
http://www.ProRemotes.com - Authorized Dealer & Remote Programming Services

Sorry for the delay. But here goes some serious sh*t. I turned off the IR Blaster on the MRF-300. Set the remote output to RF only, put a sweater over the IR receiver and transmiter and covered the MX-3000's for led output and the channel still changed. Has anyone had any experience like this or experience with the RF Link 5.8Ghz. Anymore suggestions would also be appreciated.

Thanks

Holy sh*t indeed. This is the stuff that just makes you want to give up.

I have a wild and crazy idea for you to try but first with a question. Will the cable box in the bedroom change channels (on the front panel of the box) w/o the coax connected to the back of it? If so, completely disconnect the cable box in the bedroom from the cable system, now repeat what you just told us you tried. Problem still there?

Many of the RF sender units include an IR extender. Look to see if the unit you have purchased is sending more than audio and video -- maybe a little IR via RF

If your satellite has a RF remote, change the RF ID. A few years ago I had an instance where a MX3000 controlled a Sat receiver directly through RF. It just so happened the RF ID of the Sat receiver and the output of the MX3000 matched.

The cable does change channels if the coax is unplugged. I went through all of the steps again and still the same thing. The channel still changed.
Someone mentioned an IR extender. The RF Link does have an IR extender so that I can change the channel from the kitchen. It picks up the IR and then sends it to the cable box. The cable box doesn't runon RF at all, so we can rule out that it's on the same frequency as the remote.
Is it possible that the IR extender is on the same frequency as the MX-3000? I can't find any specs on the IR extender in the manual. All it really says is that the unit runs on 5.8 Ghz.
I running out of ideas. I'm thinking of calling a priest next. LOL.

OOPS, accidental double post.

FWIW... are you using RF in on the bedroon Sat box? Is it the same make or make and model of the main Sat box? It sounds to me like the RF signal is making its way to the sat box in the Bedroom....

The cable in the bedroom is not controlled by RF, and it's not the same model, but the IR codes are the same for the box in my living room and the box in the bedroom.