[mythtv-users] Decoding a UHF remote
Michael T. Dean
mtdean at thirdcontact.com
Mon Jun 25 17:43:03 UTC 2007
On 06/25/2007 01:35 PM, David Brodbeck wrote:
> On Jun 25, 2007, at 10:02 AM, Jeremy Gillick wrote:
>> I just recently got DishNetwork installed at my house. The set top
>> box that comes with it has an IR receiver for tuner 2, and a UHF
>> remote receiver for tuner 1. I've got my mythtv communicating with
>> the IR tuner just fine but keep wondering how I can reverse
>> engineer the UHF receiver. I've never done something like this
>> before, but it sounds like fun. Does anybody know how I could start?
> This is a tall order and requires some expensive equipment,
> normally. Spectrum analyzers and the like.
> However, if you're brave, you can try taking the remote apart. If
> you can identify what chips are used and trace out some of the
> circuitry, you'll know what modulation scheme they're using and your
> task will be much easier.
> Unfortunately, often the chips in such devices are "house marked."
> They're probably standard items, but the part numbers are often
> unique to a particular manufacturer and aren't something you can
Out of curiosity, have you identified a source for an RF transmitter
that can be hooked to/controlled by the computer?
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