to add a dpp44 or not

[BRILLO]

good day testers . first off would like to thank the group for the help that was provided
for my buddy who had some questions a few weeks ago . he is down the last question
he has 4 nf hd boxes and using the dpp44 currently has 3 on output # 2 , 3, and 4
output number 1 has the power insterter which works great for him . no swich issues since getting this
going
a much better solution than those unpowered disecq switches .
here is the question
he has the 4th box he wants to get going .
can he plug it into the power insterter in port 1 or does he need another dpp44 and get that going with the
pass thru wiring and use port # 2 on the new dpp44 ?
another words what are your thoughts on a new switch needed or not
any damage to the hd box if not , or just give it a try and see what happens
he dosnt want to fry his hd box with to much dc voltage

what do you guys think?

[junior1]

You can use just the power inserter. You could also use a Dik or Bev receiver to power the lnb. Connect either to output port 1 on the lnb

EDIT: I just read he wants to use 4 receivers. Then he will need to use a DPP44 switch with the power inserter.

If he leaves all 4 receivers ON then he may not even need the added power. He could also cascade 2 DPP44 switches and then run 8 boxes.

[BRILLO]

he dosnt want to tie up port 1 with a dik or bev since he wants to use the port # 1 for a fta box
they will not be left on all the time
will the volatge be to great on the nf hd power supply is the question at this point
?

[Terryl]

The DPP power inserter has some issues with some (but not all) FTA receivers, this is due to it's to the receivers LNB connections input characteristics, the switch does not provide the proper load to some FTA receivers, (Dish does not care about other receivers, only theirs) this can cause switching problems, or damage to the FTA receivers tuner.

A second DPP 44 switch and power inserter can be used, the DPP 44 switch can be cascaded to 3 switches for up to 9 FTA receivers or 12 Dish receivers.

Adding more receivers will not combine together to power the LNB's, only the one receiver with the highest DC voltage will win out, and if it cant supply the correct DC current to the LNB you will have problems, and also could (over time) severely damage the FTA receivers power supply. (does bulged out caps in the power supply sound familiar?)

A Dish receiver does a switch check, this finds the type of Dish switch or Dish LNB attached and adjusts for the correct power to the LNB or switch, in the case of when a DPP44 switch is detected, it shuts off the DC power output from the receiver and adjusts the inductive load to the receivers tuner, if a DP34 switch is detected (no power inserter) the receiver supplies 19 to 20 volts DC to run the switch, if a DP single, DP twin or the D1000 LNB is detected then the Dish receiver supplies 18 to 20 volts DC at 650 mA to 750 mA, most (95%) of the FTA receivers out there can only supply 18 volts DC at 500 mA.

So it is best to use the DP44 power inserter on it's own coax run to the #1 receiver output port on the DPP44 switch, (or directly to the $1 port of the D1000 LNB) and without an FTA receiver connected to the DC power inserters receiver port, this avoids any possible damage to the FTA receiver.

[Terryl]

he dosnt want to tie up port 1 with a dik or bev since he wants to use the port # 1 for a fta box
they will not be left on all the time
will the volatge be to great on the nf hd power supply is the question at this point
?


Look at the back of the reciever, find the LNB input connector, there should be a label telling you the maximum DC current that the receiver can supply without damage.

[AeonFlux]

This trick actually works...

The existing DPP44 has 4 outputs on the right side meant to goto the cascaded next DPP44. Just hook those to their own diseqc switch and the diseqc then goes to receiver #4.

My buddy actually hit 5 receivers all working off 1 DPP44. He had no problem at all running his NF HD off the power inserter port.

So you can actually go either way. Go off the power inserter port OR use the trick. It works. I saw it with my own eyes. He may still be running it that way. Now I'm going to have to ask him just to see.

[Terryl]

It may be working for now, but over time it may do something to the receivers tuner or power supply.

I have done extensive lab testing on this, Dish never intended the DPP power inserter to be connected to or run on anything but their receivers, and could care less if it damaged (over time) an unauthorized box hooked to that port.

Some receivers may take the imbalance some wont.

And just because someone got lucky, it may not work out for others, all systems are different.

And the same goes for connecting to the cascade outputs on the DPP44 switch, those outputs are designed to be connected to nothing else but a second DPP44 switch, connecting it to a Diseqc switch may over time do something to the DPP44 switch.

Those are outputs only, the Diseqc switch is bidirectional and could send DC voltage back into those outputs and again over time do some damage to the switch.(only time will tell)(I will check to see if there is a DC blocking diode to protect this connection)

[BRILLO]

well
my buddy decided to try to put his nf hd box on port 1 and it seems to work
checking back after a few days indicates no problems so he will roll with it
thanks for the input

[Terryl]

Watch for over heating in the receivers power supply, look for bulging caps, (common problems with over taxing the power supply) this may take weeks or months to come up.

[BRILLO]

thanks will tell him to keep eye out
we can close this down now