Incoming President Requests DTV Cutover Delay
mo at ccr.org
Sat Jan 24 13:12:29 CST 2009
i would bet a large beer that there's at most two
really different hardware designs in the boxes.
things like this these days are almost always
"reference designs" supplied by the chip companies
and built by the white-box ODMs in Asia. sometimes
they change the shape of the circuit boards just
for "differentiation", but more often, it just
the case clamshells that are different.
ps - anyone cracked several of the boxes open
to see whose parts are inside?
Frank Gentges wrote:
> I did some of that testing. We got several units from others and tested
> them with the same antenna and attenuator. I then noted the attenuator
> setting for each unit.
> In the end, all units were very similar in sensitivity. I did not find
> that one model that would be significantly better than the others. With
> similar components available to all makers and the lack of a design
> flaw, this is pretty much what you would expect.
> I did notice some real differences in features related to decoding and
> displaying station menus. All the units get the data but some choose to
> show a lot and some very little.
> Frank K0BRA
> Will Russell wrote:
>> Also, there is a question of the sensitivity of the converters (and the
>> receivers in the DTV receivers). Assuming there are standards it would
>> seem that the various designs would perform differently.
>> My recollection is that a member talked about testing these devices last
>> summer. If that person reads this could he or she respond with whether
>> the tests covered the performance of the units and if so what data was
>> obtained? Another possibility is that performance data is available on
>> line. Any links?
>> Will Russell
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