Every fluorescent lamp puts out IR that will be received by all but the
most narrow band IR receivers. What happens at the device's end depends
on implementation details.

The reddish lenses found on IR products filter out specific frequency
ranges and in consumer electronics are usually provided so that
sunlight and most fluorescents don't cause excessive noise at the
receiver module. The modules themselves are also cast with colored
plastics to block out certain frequencies. You can get a ton of
information (if you care) from the various Siemens, Vishay (etc) data
sheets.

First suggestion is to buy a few more CF bulbs from different
manufacturers and at different outputs. You will probably find one that
doesn't cause a problem. In fact I'm almost sure of it.

A question for Sean or someone else at Slim... What IR receiver modules
were used in the SB2 and SB3? What frequencies should the exterior
lenses of the enclosures be filtering for each?

I have CF as the sole lighting source in my living room with the SB3
causing no problems at all.

I've done a lot of IR work over the past few years and tested countless
IR transmitting and receiving products. Numerous (mainstream) products
I've tested are completely unusable in my office test area. The SB3
works fine there.

Switching to a different remote would have no effect. The noise
produced by the light source would still corrupt the signal.

Unfortunately, the protocol being used by Slim (JVC) is basically one
that repeats a length sequence continuously during a repeat - fairly
easy to corrupt because there's a not-insignificant amount of data to
decode/match. If instead the product had used the NEC format it would
be a lot easier to keep repeats going and able to throw out
interference. Of course with a lot of noise being blasted at the same
time it would could still be difficult to decode the initial command
(but this might have alleviated Seans concern of dipping or mispointing
the remote in normal conditions).

I'm also surprised I haven't noticed more people complaining about
command collision with JVC DVD players. Unfortunately a number of
command codes overlap on device 239 (which Slim is using). Really, a
unique device number should have been selected to prevent collisions
with already established products.


-- 
MelonMonkey

Bruno
*'Twisted Melon - Fine Mac OS Software' (http://twistedmelon.com) |
'mira - Personal Control for your Apple Remote'
(http://twistedmelon.com)*
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