How does DPH work?
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DPH (DISH Pro Hybrid) technology is a versatile satellite reception system that can switch between multiple DISH technologies depending on the receiver connected to it. Here are the key features:
Compatible Technologies:
Key Capabilities:
Compatible Technologies:
- DP (DISH Pro)
- DPP (DISH Pro Plus)
- DPX (DISH Pro Extreme)
- DPZ (DISH Pro Zip)
Key Capabilities:
- Supports band stacking (2 tuners) or FSK channel stacking (16 tuners)
- When in DPZ mode, only port 1 outputs DPZ signal and port 2 is disabled
- Internal switching capability that can be disabled when connected to external switches
- Compatible with various receiver configurations:
- 2 ViP Single tuners
- 2 ViP Dual tuners
- 2 Hopper 2000's or Hopper With Slings
- 1 Hopper 3 (Port 2 turns off when connected)
- Up to 8 Wallys in dual tuner mode with DPZ Channel Stack Splitters
- Up to 16 Wallys in single tuner mode with DPZ Channel Stack Splitters
By comparison…
Based on the provided context, here are the key details about DISH Pro Plus (DPP) technology:
DPP Technology Features:
Communication Features:
Key Capabilities:
Diplexer Support Notes:
Based on the provided context, here are the key details about DISH Pro Plus (DPP) technology:
DPP Technology Features:
- Frequency Range: 950MHz - 2150MHz
- Requires minimum 2150MHz rated RG6 and components from LNBF to Receiver
Communication Features:
- Uses two-way DiSEqC communication
- Employs Band Stacking technology:
- Creates two satellite frequency bands for two tuners
- Odd and even transponders share a frequency band
- Each frequency band has two-way communication
Key Capabilities:
- Supports 2 tuners per coax
- Splitter support designed for TV2 or OTA feeds
- Diplexer support for OTA or TV2 feeds in 49MHz - 900MHz range
- Check Switch test takes 1-5 steps depending on equipment attached
Diplexer Support Notes:
- OTA and TV2 feeds require minimum 900MHz rated RG59
- OTA and TV2 feeds cannot be diplexed simultaneously as they run on the same frequencies and will interfere with each other
I've not heard of DPX and DPZ before. Can you explain them in more detail please?
Ditto. That was like a tech specs for DP, which came out over 20 years ago. Really it just describes what kinds of rx's work with it rather than how it works. Now we need to hear specifically about what DPX and DPZ even are (in addition to DPH) as well as FSK stacking. My imagination takes me to possibly they went with freq. stacking not just all of a single sat's ch's but multiple sats' ch's into a single stack, such that it could be infinitely split with no need for signaling a switch between sats (in add'n to H/V). To serve basically an unlimited # of tuners.
This is what I found. The Frequency ranges are confusing to me since I thought ALL Hoppers use up 3000 Mhz
DPZ is older legacy equipment
- DPZ Frequency Range:
- 500MHz - 2150MHz
- Minimum 3GHz rated RG6 and components required from LNBF to Receiver
- Note: Tight bends in cable reduces the frequency rating
- Communication:
- FSK
- Includes all the advances from DiSEqC
- A new protocol was needed for the channel stacking technology
- Each CSS Channel is set to the desired satellite transponder
- Support 16 tuners simultaneously over one cable for the Hopper 3
- Only ZiP equipment is compatible with FSK
- Dish Pro Hybrid LNBs are backwards compatible with DP/DPP/XiP receivers using DiSEqC
- Channel Stack Switching
- Full Transponders are split out (rather than odd and evens)
- MoCA
- MoCA stands for Multimedia over Coaxial Alliance and is the standard protocol for transmitting Internet data over coaxial wiring, or Ethernet over coax
- Clients (Joeys) in DISH systems use data transmission instead of video signals to function
- FSK
- Tuners Supported Per Coax:
- 18, 16 for receiver use
- Diplexer Support:
- None
- Note: OTA and TV2 feeds cannot be diplexed on DPX systems as they run on the same frequencies as MoCA and will interfere with each other
- Splitter Support:
- Spitter use is designed to split Client feeds (MoCA)
- Client feeds require at minimum 900MHz rated RG59
- Channel Stack Splitter Support:
- In commercial installations Channel Stack Splitter use is designed to split the CSS band for multiple receiver use
- Up to 8 Wallys in dual tuner mode
- Up to 16 Wallys in single tuner mode
- Channel Stack feeds require at minimum 3GHz rated RG6
- Note: a power inserter or switch is required
- Check Switch:
- 1-5 steps depending on equipment attached
DPX, I believe is the Hoppers
- DPX Frequency Range:
- 650MHz - 30000MHz
- Minimum 3GHz rated RG6 and components required from LNBF to Receiver
- Note: Tight bends in cable reduces the frequency rating
- Communication:
- Two way
- DiSEqC
- Two way signals over the coaxial cable to select and control the appropriate satellite from the set-top box
- This is the first protocol DISH used that allowed for two-way communication
- It requires compatibility from both the receiver and the outdoor equipment
- This allows the set top box to easily switch signals from one LNB to another LNB directly from the set-top box
- Allows the receiver to determine what kind of switch gear is connected
- Allows the switches and LNBs in the install to identify what they are and what satellite signal is being carried
- Two way signals over the coaxial cable to select and control the appropriate satellite from the set-top box
- Band Stacking
- Three satellite frequency bands are created
- Odd and even transponders share a frequency band
- Each frequency band has two way communication
- MoCA
- MoCA stands for Multimedia over Coaxial Alliance and is the standard protocol for transmitting Internet data over coaxial wiring, or Ethernet over coax
- Clients (Joeys) in DISH systems use data transmission instead of video signals to function
- Tuners Supported Per Coax:
- 3
- Splitter Support:
- Spitter use is designed to split Client feeds (MoCA)
- Client feeds require at minimum 900MHz rated RG59
- Diplexer Support:
- None
- Note: OTA and TV2 feeds cannot be diplexed on DPX systems as they run on the same frequencies as MoCA and will interfere with each other
- Check Switch:
- 1-5 steps depending on equipment attached
All I can make of this is that they switched to a different stacking scheme (as above) for the hopper given its extended # of tuners, named it DPX, and then renamed or redesignated the (old) DP/DPP scheme as DPZ (evidently to distinguish from DPX). The DPX scheme operates by FSK (what's this?) switching under DiSEqC 2-way comms protocol.
Also they've designated a chunk of freq's for IP comms (MoCA) between set-top boxes, compatible both with DPX and the older DPZ.
What I make of this is that this hopper (DPX) system was designed not as much for systems versatility (support more tuners, etc.) as to keep a tight leash on cx's. They have to put a box at every set where they want to independently view, and those "client" boxes are tied to and communicate via IP with a hopper rx. A design to thwart "stacking" use of rx's by forcing all boxes to register systemic connection to one another to operate. But to my mind they could also have accomplished that by designing "whole house" rx's where you wouldn't need all of these "joeys" to begin with.
Also, and maybe a current dealer can chime in, this MoCA IP comms scheme has the "client" boxes receiving A/V from already-tuned ch's from a hopper and don't have any tuners themselves. They command the hopper as to which ch's to tune. Because MoCA takes up freq's used by broadcast this has further effect of knocking out the ability to diplex offair OR TV2 (again requiring another box rather than just using RF remote and not needing another box) over sat box coax, so you'd have to revert to running separate coax everywhere just for adding offair.
Buried within the callout for DPZ is this definition of DPH- new components (like LNBF) that work with current DPX as well as being "backward compatible" with "DP, DPP, XiP rx's using DiSEqC." OK, now what's an "XiP" rx? Or for that matter a DP rx? A 722 (ViP) doesn't need DP, it can run from an old original non-dp Twin over 2 coaxes. Would a "DP rx" be like one that can take a DP input directly for multi-tuner without having to split it for like the 2 inputs on 722/322? So with this XiP (as well as DP & DPP) rx's are we talking hopper-era only and not ViP?
Also I don't get how a single LNBF (this DPH) could be compatible with both DP and DPX given that the 2 use different bandstacking schemes that overlap one another.
Also they've designated a chunk of freq's for IP comms (MoCA) between set-top boxes, compatible both with DPX and the older DPZ.
What I make of this is that this hopper (DPX) system was designed not as much for systems versatility (support more tuners, etc.) as to keep a tight leash on cx's. They have to put a box at every set where they want to independently view, and those "client" boxes are tied to and communicate via IP with a hopper rx. A design to thwart "stacking" use of rx's by forcing all boxes to register systemic connection to one another to operate. But to my mind they could also have accomplished that by designing "whole house" rx's where you wouldn't need all of these "joeys" to begin with.
Also, and maybe a current dealer can chime in, this MoCA IP comms scheme has the "client" boxes receiving A/V from already-tuned ch's from a hopper and don't have any tuners themselves. They command the hopper as to which ch's to tune. Because MoCA takes up freq's used by broadcast this has further effect of knocking out the ability to diplex offair OR TV2 (again requiring another box rather than just using RF remote and not needing another box) over sat box coax, so you'd have to revert to running separate coax everywhere just for adding offair.
Buried within the callout for DPZ is this definition of DPH- new components (like LNBF) that work with current DPX as well as being "backward compatible" with "DP, DPP, XiP rx's using DiSEqC." OK, now what's an "XiP" rx? Or for that matter a DP rx? A 722 (ViP) doesn't need DP, it can run from an old original non-dp Twin over 2 coaxes. Would a "DP rx" be like one that can take a DP input directly for multi-tuner without having to split it for like the 2 inputs on 722/322? So with this XiP (as well as DP & DPP) rx's are we talking hopper-era only and not ViP?
Also I don't get how a single LNBF (this DPH) could be compatible with both DP and DPX given that the 2 use different bandstacking schemes that overlap one another.
FSK stands for Frequency Shift Keying. This is where the carrier frequency is shifted slightly up or down to indicate a "bit" of information. This scheme is more immune radio propagation and fading issues than CW (Continuous Wave) transmissions where the carrier is turned on and off to denote "bit" information.
FSK was first used in wireless telegraph systems to denote the "dits" and "dahs" for Morse Code. FSK is now used routinely in wireless digital systems to indicate digital 1 and 0 "bits" of information. Some systems use multiple shift levels to "compress" information (say 8 shift levels for values 0 to 7) into the same bandwidth.
A similar scheme, PSK, changes the phase of carrier instead of the frequency, and can use multiple phase shift levels for similar compression.
Fantastic information. Thanks a lot.
However, I think you got your DPZ/DPX group labels backwards. DPZ appears to be for Hopper3s (owning to the 16 (18) simultaneous channels), DPX appears to be for the earlier Hopper1s, Wallys (single tuner), and Hopper2s (three tuners). Is that correct?
Also, from what I understand, DiSEqC is the communication protocol that is used in the MoCA band to do all the switch configuration inquiries and receiver identification. And DiSEqC commands are used to select which channels are in the group of 16 in DPZ, correct?
Where do ViP receivers fit in these schemes?
Lastly, just to clarify, in DPZ there is only one group of 16 stacked channels, correct?
So this is at the sat transmission level? Which rx's use it? Everything hopper-forward?
Now I'm even more confused. The info says that DPH, which we've previously established to mean DishPro Hybrid, is backward-compatible with all rx's that can use DP & DiSEqC- how far back in rx's would that go? Thus "Dpx is hybrid" would seem to contradict that statement by DiSH. My understanding from that information is that all the new stuff needs something more advanced than simply the old DP stuff, but that they're now putting out LNBFs and the like (Hybrid) that can be used on both new-rx installs and older (possibly) pre-hopper rx's. So has there been a DPX-only LNBF?
What are solo and dual nodes and what rx's used with (not mentioned in the explainers)?
Finally, what is an XiP receiver? It looks like a ZiP receiver would be something at the hopper level but using the DP(Z) scheme rather than DPX. Is it like ViP, then ZiP and then Xip? Never heard of this.
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FSK is only used in MoCA communications between devices on the local coax, and has nothing to do with the satellite signals.
I think I'm beginning to understand DPH now, it's all in the acronym of "hybrid". It appears a DPH LNBF is a configurable LNBF as four LNBFs in one, DP, DPP, DPX, and DPZ. Once the device configuration on the coax network is identified, the DPH LNBF is told (via MoCA commands) which LNBF to act like for each of it coax output ports. Then, with all of the appropriate nodes, diplexers, and switchs the correct LNBF style information is steered to the proper group of receivers.
Have I got this correct?
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Sounds reasonable. DiSH was always big & strong on coming out with ever-advancing technologies- it just wasn't so big & strong on serving cx's
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