DSTV HDTV details

There will be a std HD decoder 1110 or something.
The HD PVR 1 View 2 Record.
With Xtraview, there is no need for a Dualview HD PVR.
There is also the bonus of using the other Std HD decoder, with multimedia menus etc, no need to setup remote blasters etc.
Just an extra Coax line i think.
a 4/quad lnb is a must!
 
With the MNet being in HD, will I be able to watch MNet with my ancient DSTV [SD] decoder?
 
bboy said:
cause the LNB gets "tuned" to a frequency, one lnb cannot receive all the signals on its own, there are a range of horizontal and vertical frequencies that are broadcast.
Click to expand...

I understand that a signal is received by the LNB and sent to the decoder, the decoder can then tune to the different channels on the received signal. So why do we need an dual LNB with 2 sockets in it? Why can't the decoder take the signal signal on a standard LBN and split it down the middle, so one part used for viewing one channel and the 2nd part used for viewing another?

Are you saying the decoder tells the LNB to tune to a channel?
 
andytl5 said:
I understand that a signal is received by the LNB and sent to the decoder, the decoder can then tune to the different channels on the received signal. So why do we need an dual LNB with 2 sockets in it? Why can't the decoder take the signal signal on a standard LBN and split it down the middle, so one part used for viewing one channel and the 2nd part used for viewing another?

Are you saying the decoder tells the LNB to tune to a channel?
Click to expand...

A satellite broadcast signal is split into hi & lo band each with vertical & horizontal polarisation, giving four possible feeds from the LNB. The tuner(s) in the decoder tells the LNB which one of the four it needs by voltage switching and frequency tones. The HD PVR has four tuners and each one needs independent access to a LNB receiver, hence the need for a quad LNB (which has four receivers built in) and four coaxes.

However, DSTV use only the Lo band on PAS 7/10 but uses both horizontal and vertical polarisation feeds. That means that each decoder tuner need only access one of two feeds - either vert or horiz. So, for now, if you have a twin LNB (required for the SD PVR), you can buy a multiswitch which will provide four outputs from the two coax feeds (instead of fitting a new quad LNB). This is not a splitter - it intercepts the decoder instructions to the LNB and connects the tuner to either the vert or horiz signal as it needs them.

These multiswitches come in many forms. If you want to have a HD PVR by itself you need a "2 in 4 out" multiswitch. If you want to use a HD PVR and a SD PVR together (Xtraview) you'll need a "2 in 6 out" multiswitch. I understand Ellies will have these at about the same time the HD PVR's hit the stores.

These multiswitches reduce the signal by about 4dB (just more than half) so if your signal is marginal, then you will see some impact especially when there is bad weather.

Hope this helps. There is quite a lot of information available on the dstv website on the Forum under Emerging Technologies.

Ken
 
kenironside said:
A satellite broadcast signal is split into hi & lo band each with vertical & horizontal polarisation, giving four possible feeds from the LNB. The tuner(s) in the decoder tells the LNB which one of the four it needs by voltage switching and frequency tones. The HD PVR has four tuners and each one needs independent access to a LNB receiver, hence the need for a quad LNB (which has four receivers built in) and four coaxes.

However, DSTV use only the Lo band on PAS 7/10 but uses both horizontal and vertical polarisation feeds. That means that each decoder tuner need only access one of two feeds - either vert or horiz. So, for now, if you have a twin LNB (required for the SD PVR), you can buy a multiswitch which will provide four outputs from the two coax feeds (instead of fitting a new quad LNB). This is not a splitter - it intercepts the decoder instructions to the LNB and connects the tuner to either the vert or horiz signal as it needs them.

These multiswitches come in many forms. If you want to have a HD PVR by itself you need a "2 in 4 out" multiswitch. If you want to use a HD PVR and a SD PVR together (Xtraview) you'll need a "2 in 6 out" multiswitch. I understand Ellies will have these at about the same time the HD PVR's hit the stores.

These multiswitches reduce the signal by about 4dB (just more than half) so if your signal is marginal, then you will see some impact especially when there is bad weather.

Hope this helps. There is quite a lot of information available on the dstv website on the Forum under Emerging Technologies.

Ken
Click to expand...

Fanatastic! Thanks for the explanation, finally I understand what all these different LNBs are for! I wish I could align the LNB myself without having to pay these crazy installer fees.
I figured out I can buy a dual LNB at Builders Warehouse, but I don't have the equipment to align the LNB, unless I just use trial and error? What do you think, can I align it based on taking a picture of the position of the current LNB installed on the dish?
 
andytl5 said:
Fanatastic! Thanks for the explanation, finally I understand what all these different LNBs are for! I wish I could align the LNB myself without having to pay these crazy installer fees.
I figured out I can buy a dual LNB at Builders Warehouse, but I don't have the equipment to align the LNB, unless I just use trial and error? What do you think, can I align it based on taking a picture of the position of the current LNB installed on the dish?
Click to expand...

DIY LNB install and dish LNB alignment is a easy thing to do. Searh for dish on this forum and you will see a thread about it....Wait I will do it for you :D

http://mybroadband.co.za/vb/showthread.php?t=128140&highlight=dish
 
What will happen if you record something on the HD PVR which broadcasts to your living room, and then you want to watch the recording from a TV in another room which receives its broadcast from the standard PVR decoder? (Or Vice Versa. The HD PVR uses the HDMI port on the television to transmit the signal, so it won't be possible to carry it over the normal rf cable to other rooms?)
 
andytl5 said:
Awesome thanks, you just saved me a small fortune in installation fees! hehe:D
Click to expand...

Remember if you are going to use a dual LNB, you will also need a 2 - 4 multiswitch. The HD PVR takes four feeds. If you are going to use XtraView, a quad LNB and a 4 - 6 switch is a good idea.
 
Toilet_Duck said:
Remember if you are going to use a dual LNB, you will also need a 2 - 4 multiswitch. The HD PVR takes four feeds. If you are going to use XtraView, a quad LNB and a 4 - 6 switch is a good idea.
Click to expand...

Now where to get one switch?
What about a 4>7/8? I am running out of LNB signals fast if I use the new PVR with current dualveiw and need another one for internet and old sinle decoder. :D
 
Dovi said:
What will happen if you record something on the HD PVR which broadcasts to your living room, and then you want to watch the recording from a TV in another room which receives its broadcast from the standard PVR decoder? (Or Vice Versa. The HD PVR uses the HDMI port on the television to transmit the signal, so it won't be possible to carry it over the normal rf cable to other rooms?)
Click to expand...

You will only be able to watch HD on a TV connected via HDMI. All the other outputs of the HDPVR will be SD. So you will only be able to watch HD in the living room, even if you happen to have a HDTV in the bedroom as well. If you want HD in the livining room and the bedroom, you will need two HD PVR's and probablly a second dish for the second HD PVR.
 
Hi guys

Just want to sum things up. Seems like dstv.com has zero info on this.

I’m currently running a good old fashioned single view LNB with standard decoder and 65CM dish.

I’m not interested in hooking this HDPVR thing up to other pvr’s or the extra view stuff. Just want to keep the feed single. I.e view single channel and record another if I want to. Now duel view stuff.

From what I gather I’ll need a quad LNB or duel with a splitter anyway. So that I understand, but:

Will I need a new dish? I.e. a bigger than 65CM dish? (this concerns me…)

Will my subscription go up due to the recording features? (Atm I just have standard dstv premium with single decoder)

Is there a place I can pre order from?
 
Where can I buy a dual LNB? I've seen Builders Warehouse sell a single LNB for a couple of hundred bucks.
 
Has anyone got any clarity on this?

I live in a block of flats and only have 2 satellite cables available to me.

Would I be able to get some sort of splitter/switch that can turn these 2 inputs into 6 ? Or am I screwed.

Thanks,
Donald
 
apparently there is some sort of 2-6 multiswitch/splitter, i recommend calling ellies or spacetv
 
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