No ir can i add?

The Panasonic DMREZ48VK is still full of bugs and design flaws after three years of production. It's best to avoid EZ series combo recorders. This thread has the horror stories:

http://www.avsforum.com/avs-vb/showthread.php?t=1014536

Some Panasonic HDD models and tunerless EA series DVD recorders have IR blasters. My DMR-EA18 is one of my main "workhorse" recorders.

If I understand your question properly, the answer is no. There is no way to make the EZ48 output IR codes using any emitter. It was made without a plug or attachment for an IR output device.

Oh I thought he was trying to make the Xantech system which is an IR emitter to be able to handle the Panasonic. The Panasonic is inside a closet so he wants to have a repeater inside the closet to deliver the IR. Most Panasonic DMR's use a Panasonic prototocol which operates at 37Khz. Emitters are usually rated by the frequency you expect them to deliver, and most will handle 37Khz. I don't know what model the Xantech system uses.

Have you tested the emitter?

Look at the emitter through a digital camera (the one on your cell phone will do) and see if it is actually flashing a signal.

Check the emitter's rating to make sure what frequencies it is rated for. You are looking for 37Khz, which is pretty average.

Check the placement of the emitter. It needs to be directly in front of the sensor.

I couldn't find the specs for the 789-44 or the 283 emitters, but the WL85 is good for 30 - 60 kHz, so the 37 kHz is not pushing the envelope there. That should be compatible with a standard Panasonic signal.

From what I understand you are pointing a remote control at an IR sensor, and its repeating it inside the cabinet.

Have you tried this with the closet doors open? Does the remote work then? If not turn off the TV and see if it works. Lots of the new TVs give off interference that can be a problem with certain IR frequencies.

If the unit does work with the closet open, go back to the Panasonic manual and make sure you have located the emitter in the proper location.

Just so you know, the Panasonic EA series(the EA-38v is the equivalent combo to your EZ-48v) have a remote IR transmitter for controlling STBs, it isn't for receiving IR signals.
I have, but haven't used for many years(well before I got into Panasonic DVDRs) a cone shaped IR repeater. It's a two piece unit with one being placed where the remote can see it and the other(which has a remote IR blaster) being placed in front of the equipment you want to control. Is this the kind of setup you're trying to use?

Okay, I believe that I misunderstood your initial question. I thought that you were attempting to get the EZ48 to control some other piece of equipment by making IT transmit IR signals to that other device. Now it appears from your replay quoted above, you are attempting to get your EZ48 to respond to IR signals from another unit.

If I am correct THIS time, all I can say is, that should not be a problem. The EZ48 will accept and respond properly to any valid IR code. There is no way for the EZ48 to know if that IR signal came from a Panasonic remote, or your Xantech emitter. The only thing that would prevent your setup from working is if your transmitter has the wrong set of IR codes selected. I would make certain that your device selection has the correct IR signal code.

Or am I still misunderstanding you?