DPP question

[tuyo]

For a fringe area setup with a large single dish for each bird (one dish for 119, one dish for 110 and one dish for 129) could one replace the legacy LNB's with twin DPP LNB on each dish and connect these to a DPP-44? The twin LNB will only be used for one satellite on each dish.
Does the twin DPP have some kind of switch inside?
Does nobody make single DPP LNB's?

[nixon_r]

There are single and dual DP LNBs (single is one satellite and one output, dual is ione satellite and 2 outputs), there are no internal switches in single orbit LNBs. The problem you will face is the shape of the connection form the LNB to the arm is different, regular FTA LNBs have a "square" connector and the DP have a "d" shaped connector, If you are hanging the LNB from the throat then the casing from the DP LNB will have to be removed and the throat will need an adapter. After all that is taken care of you could connect the DP LNBs to a DPP44 switch.

[tuyo]

My question is specifically for the DPP.

[nixon_r]

DPP LNB are for multi-sat reception, they all have internal switches. As far as I know they don't make a DPP single or dual LNB, only DP

[Terryl]

If your using a single Dish Pro Dual LNB you will need the special single LNB adapter for use with the Dish 500 arm, it will adapt the "D" neck LNB to most LNB arms, look at the link below, they sell the single LNB adapter for the "D" type LNB from Dish.

You will then need to use the DPP44 switch, (compatible with the DP LNB's) this will work with the 3 DP LNB's, just follow the switch settings of , 119 = Diseqc1, 110 = Diseqc 2 and 129 = Diseqc 3.


http://www.dsslv.com/dnparts.html
Part # DN160, they also have the single satellite DP dual LNBs.


Now if your using a dish with a round neck LNB holder you can get band stacking LNB's just like the ones Dish uses, they are held on just like the linear LNB's by a collar that goes around the neck of the LNB.

[havenlyskyhigh]

The only you need is extra dp lnb and braket if you don't have braket use electrict blk tape/tape it up with big head lnb 118/119.
If it don't do the job right, need some shim @ middle daul head.

[tuyo]

My concern at this time is not the mount we will cross that bridge later. What I would like to know is, can I use 3 pieces of the twin DPP lnb's and take one connection of each of the twin DPP LNB to a dpp-44?
The Twin DPP LNB has 3 connections, can I take the first connection of each Twin DPP LNB to the DPP-44 switch. Will the reciever recognise this setup?

[arflaw]

Short answer is yes.

[Terryl]

My concern at this time is not the mount we will cross that bridge later. What I would like to know is, can I use 3 pieces of the twin DPP lnb's and take one connection of each of the twin DPP LNB to a dpp-44?
The Twin DPP LNB has 3 connections, can I take the first connection of each Twin DPP LNB to the DPP-44 switch. Will the reciever recognise this setup?

My answer is NO. (and this is the long answer)

First off, the use of 3 DPP twin LNB's used for only 1 satellite each complicates things quite a bit, as each LNB has an internal switch, and that switch will try and take priority over another from the same type of LNB, this confuses the heck out of the DP44 switch, it doesn't know what one to use for port #1 as it is getting 3 port #1 signals from the three DPP LNB's, and won't know what one to turn on or off.

And NO you can't daisy chain the 3 LNB's together, that input on the DPP LNB is for a DPP dual LNB (single satellite).

You will be much better off using the DPP dual LNB's, they don't have the internal switch setup like the DPP twins do.

See the DPP (DP pro) LNB is special, it uses both the band stacking technology AND the old style legacy switching (+14 and +18 volts DC) to get the satellites transponders down the coax.

It has all transponders in the 950 MHz to 1450 MHz band and a second set at the 1950 to 2450 band, this is for the Dish "Dual" tuner recievers, tuner # 1 uses the higher band, tuner #2 uses the lower band, mixing all this up with 3 DPP LNBs causes a big mess.

In my professional opinion, I would go with 3 DPP duals, and a DPP44 switch, you will have much better luck.

[nixon_r]

If you are using the DPP twin LNB then you are restricted by the internal switch, you can have one connected to port 1 for 119 and one on port 2 for 110 but that is it. If you connect a DPP twin to port 3 or 4 you won't get anything, if they were single or dual LNBs, no problem.

[Terryl]

Here is a drawing for this setup, using 3 DP dual LNBs (single satellite LNB) and the DPP 44 switch.

13782

[tuyo]

Thanks guys, I am specifically interested in the DPP technology for the new Hopper and Joey that has come out, as the DPP is the only technology that will work with this new system.

[nixon_r]

You can use DP LNBs and a DPP44 switch and it is DPP technology, the only difference is that the Plus technology is in the switch not the switch inside the LNB

[Terryl]

You can use DP LNBs and a DPP44 switch and it is DPP technology, the only difference is that the Plus technology is in the switch not the switch inside the LNB

Did you read the second part of my #9 post?

[nixon_r]

Did you read the second part of my #9 post?

Yes I did but I don't understand what you are trying to tell me.
There is nothing I am saying that isn't true. I am telling the OP that If he were to use a DPP44 switch then the DPP technology he is wanting is there, he does not have to use DPP LNBs to get the technology. You stated the exact same thing in post 11,

[Terryl]

OK, what I was saying is the difference between the DP and DPP technology is that the DPP uses the +14 and +18 volt switching on the lower band for the transponder polarity.

What happens is:
You can't use an older DP44 switch (yes they are out there) with the newer DPP LNBs (at least Dish engineering says you can't)(I haven't got around to test this for my self yet) you have to use the DPP44 switch with this type of LNB, but the DPP44 witch will work with the older DP LNB's.

Also the DP34 switch will not work with the DPP LNB. (for those that may ask)

Confusing huh!

Here is some info on the DPP twin LNB from Dish.

http://www.dishretailer.com/dpp/dpptwin.pdf

DP is Dish Pro, DPP is Dish Pro Plus, for anyone that is really confused.

[tuyo]

From what I understood with the introduction of the DP technology the 13/18V switching has become obsolete below from EKB:

Quick lesson: all DBS providers have up to 32 frequencies to use per orbital slot. The Frequencies are opposite polarities either even or odd. Legacy LNBFs and switches can only transmit one polarity at a time down the feed cable to your receiver. Legacy switches and LNBFs use a voltage signal from your receiver to change the polarity of the LNBF it is connected to, 13 volts is odd, 18 volts is even. Since voltage will drop as the length of the cable gets longer, at some point the attenuation of the cable will drop the voltage from the receiver below 18 volts so that the LNBF can't switch to the even polarity even though the signal from the receiver is 18 volts the LNBF is only able to use the 13 volt or odd polarity.
DishPro is different as it will stack or transmit both even and odd signals down the same wire, by shifting the frequencies up so both polarities can travel the same feed to the receiver or switch. Since this is the case the LNBF doesn't need the receiver voltage to switch back and forth. A switch is necessary to be able to connect one stacked 119° feed and one stacked 110° feed to each receiver. The only way a legacy receiver will work with this arrangement of LNBFs and Dish Pro switches is with a DishPro adapter that can down convert the stacked frequencies to the standard odd or even only frequencies. Each legacy receiver has to use this adapter which must be installed within 10 feet of the receiver.
All cabling and equipment must be rated for the following:
•950-2150 MHz rather than old 950-1450MHz (frequency)
•750 mA DC rather than old 400-450 mA DC (current)
•19V rather than old 13-18 V (voltage)

[nixon_r]

I understand what you are saying, what I was trying to tell tuyo is that he didn't have to rely on DPP LNBs to get the Plus technology you can use a DPP switch.
I think we have gotten off track of what the original question was, so get yourself some DP LNBs and a DPP44 switch.