So word is the C41 will not be wireless. The HR44 will be capable of wireless streaming, but the initial client will still be wired. I would imagine a future client will be wireless when they iron out any bugs...C41W anyone
So word is the C41 will not be wireless. The HR44 will be capable of wireless streaming, but the initial client will still be wired. I would imagine a future client will be wireless when they iron out any bugs...C41W anyone
Regardless which cooling method the receiver is using, if you enclose it in a cabinet with poor or no ventilation it will overheat!I still would not pace the thing in anything remotely resembling an enclosed space.
Regardless which cooling method the receiver is using, if you enclose it in a cabinet with poor or no ventilation it will overheat!
Another major factor in cooling any system is how well it was designed in first place. My present Dish 722 overheats if we breathe [h=1][/h] too much. In 3 weeks I am scheduled to switch to Directv so hopefully that problem will be solved. Who knows, maybe by then I will get the HR44.
Crap. The C41 is streaming wireless at our warehouse. 1 wired, 2 wireless. We've been told wired is preferred and only install wireless if customers tv location would be a difficult install via coax. Pretty sure wireless is a pointless method IMO though. I have always believed a wired ANYTHING is better than wireless
Not really, any well designed Switching Power Supply runs at a minimum of 80% efficiency. That means that 20% of the heat is dissipated by the power supply and the rest, 80% of the heat is dissipated by the entire receiver. Out of the 80% of the heat, most of it (probably 75%) of that heat is generated by the CPU alone. From the pictures I have seen it looks like the CPU is using a heat pipe and a large heatsink on the side of the unit which is probably more efficient than a small fan with a small heatsink in the center of the unit.
As an EE designing power supplies for over 20 years, my statements were based on basic thermodynamics and not a hunch. The correlation between the power supply efficiency and the heat dissipated in the power supply vs. the heat dissipated in the rest of the system is directly proportional.The logic on this statement doesn't really work. A power supply that is 80% efficient does dissipate the remainder of the power as heat, that part is correct. But there is no real correlation between the PS efficiency and it's contribution to the total heat output. That 20% efficiency loss due to heat could easy account for 75+% of the total heat output. That's just an arbitrary example but I'm fairly confidant in saying that the PS produced a majority of the heat inside the unit and by moving it outside the box all that heat is then removed. Couple that change with a quality heat pipe/sink combination on CPU and you can effectively dissipate a lot of heat. You have to imagine that DirecTV put a lot of time and effort into the redesign and its not like people were crying out for an external PS, so if they moved it and went with a fan-less design they probably feel pretty comfortable with the change.
Maybe I'm an optimist, but I have high hopes for the new design.
As an EE designing power supplies for over 20 years, my statements were based on basic thermodynamics and not a hunch.
The correlation between the power supply efficiency and the heat dissipated in the power supply vs. the heat dissipated in the rest of the system is directly proportional.
Not really, any well designed Switching Power Supply runs at a minimum of 80% efficiency. That means that 20% of the heat is dissipated by the power supply and the rest, 80% of the heat is dissipated by the entire receiver. Out of the 80% of the heat, most of it (probably 75%) of that heat is generated by the CPU alone. ...
Well put! Its nice to see someone else share in my optimism. And as far watching one melt down, well who doesn't like to watch something burn!
What are the main differences in the hr34 vs hr44?
Wonder if it has a built in wireless deca?