56KHz IR Sensor

[Eidolon]

I forgot to ask what the benefit is of having the optional 56k sensor added.

Regards,

Eidolon

[jrhees]

To best explain this, it is first best to understand that the USB-UIRT has basically 3 tasks:

1. TRANSMIT IR -- this task has no relevance the 56K IR sensor. ALL USB-UIRT models can transmit from DC (0 KHz) up to 64KHz.

2. LEARN IR -- this task is used when you are 'learning' an IR stream so that it can be re-transmitted later. The USB-UIRT uses a special short-range wide-band sensor for this -- so once again the 56KHz sensor has no relevance.

3. LISTEN TO IR -- this task is the default operation the USB-UIRT performs when no learning or transmitting. When the USB-UIRT 'sees' an IR code via one of its long-range sensors, it generates a Girder event which the user can program to trigger responses, activate applications, etc. etc. The optional 56K sensor allows the USB-UIRT to 'see' remote controls that emit IR using 56KHz carriers. Among those remotes are several Satellite boxes, including Sky Digital, Echostar, Dish Network, Bell EVU.

Hope this helps,

Jon

[boba]

I have been unsuccessfully trying to learn the codes from my RCA universal remote rcu800 which comes with DirecTV. In the debug mode it indicates a frequency of 57kHz. Some codes can be learned in the debug mode, e.g., in the standard satellite mode; however, in other modes I can't get a complete read and when I try to use the improperly learned code in a test mode, the USBUIRT hangs up. You mention

LEARN IR -- this task is used when you are 'learning' an IR stream so that it can be re-transmitted later. The USB-UIRT uses a special short-range wide-band sensor for this -- so once again the 56KHz sensor has no relevance

How close do I have to be. I typically trainat about 3 inches.

[jrhees]

boba,

The distance varies depending on the remote. However, if in IR Debug mode, for example, you can hold down a remote button and get a fairly consistent carrier frequency (not bouncing all over the place but staying within 1 to 2 KHz) and the progress bar consistently climbs up to 100% then you're at a good distance. Also, if you're too close or far away the RED LED will not blink consistently.

When you learn a code (not in IR Debug) are you pressing and holding the remote's button? Does the progress bar simply not go to 100%? How are you using an 'improperly learned code'?

Also, it may be helpful to post an IR debug of one of your buttons.

Thanks,

Jon