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Previous Questions

1 Mark on 15 Nov 2011 asked  :
"Are you able to connect the transmitter / reciever to Ip over Mains Power system as i am trying to run the HD source from downstairs to a projector upstairs? IE Source into transmitter, Transmitter into Ethernet over Mains cabling adapter, Mains adapter 1 downstairs to mains adapter 2 upstairs, Adapter 2 upstairs to Reciever, reciever to projector?"

Keene replied: A tricky one to answer . This“might” work, but the speed of the Homeplug connection varies depending upon how much noise there is on the mains circuit. Very rarely is the quoted maximum MBps Homeplug speed achieved, and if the connection speed is too slow (less than 80MBps constant for PB900) then the picture will stutter and freeze. We do have some customers that continue to use them without issues but for overall reliability we've stopped recommending homeplug adaptors now for HDMI over IP.

2 Ashley on 02 Nov 2011 asked  :
"Would this work over a wireless-n network? (only one client and with a strong signal)"

Keene replied: You need a wired network for this system.

3 Scott F on 05 Sep 2011 asked  :
" Can you confirm the multicast address used these devices?"

Keene replied: The PB900 IP address is set during production and cannot be altered. The range is from 192.168.168.(1~255).

4 D b on 10 Mar 2011 asked  :
" In the product spec it says the sender supports 1080i/p but the receiver only supports 1080p. Is this an oversight? Or if the source is outputting 1080i what does the receiver output - 720p?"

Keene replied: You can't run interlace signals over an IP network. So if your source is 1080i then the output will be 1080p. If you are using Sky say with 1080i we would recommend using 720p as the results are far superior.

5 Michael B on 16 Feb 2011 asked  :
"I have a question about "HDMI OVER Is the IR passthrough included in this package? If not, how much additional cost is there?"

Keene replied: Yes it is.

6 Dburns on 20 Jan 2011 asked  :
" Are there any cheaper variants of this product?"

Keene replied: This is the cheapest we know of at present 20/01/11

7 Paul T on 22 Nov 2010 asked  :
" Can you confirm these use IP based packet data even when directly cabled? I ask because my current HDMI over Cat6 solution drops out when there are electrical spikes (such as light switches) and I need to ensure these do not do the same. Thanks."

Keene replied: Yes it uses packet data whether connected directly or routed via LAN

8 Brian on 13 Oct 2010 asked  :
" The spec mentions input @1080i/p but output at 1080p. My device outputs at 1080i so what happens at the other end? I assume the sound is carried over the hdmi and down mixed to 2 channels or does the hdmi only carry 2 channels? "

Keene replied: If 1080i is feed into the transmitter then you will get 1080p from the receiver. Most HDMI sources only use 2 channel through the HDMI connection.

9 Malcolm B on 13 Apr 2010 asked  :
"The product blurb states this works over networks configured using "homeplugs". I am interested in buying this and using it over a network that uses (Solwise) 200mbs homeplugs. Is that a configuration you have tested at all or had any feedback on? I ask because the distributors of a competing hdmi-over-ip product have stated their version does not work over a homeplug based network? "

Keene replied: This definitely works with home plug as we do have customers already using it with this network.

10 Jon G on 31 Mar 2010 asked  :
"Does the Audio transmit DD5.1? I notided an alternative brand that does"

Keene replied: Unfortunately it does not do this.

11 PM on 10 Mar 2010 asked  :
"Are you lilkely to have a cheaper product for home use?"

Keene replied: This is failry new techonology and at presnt this is the only one we stock. We have been very impressed with the perfomance of this product. In a year or so I imagine the price will drop once this sort of technology becomes more common place.

12 Stu B on 01 Mar 2010 asked  :
" Im slightly unclear how the IR works ? Ive got one source (sky hd) and dont want to use the magic eye in conjunction with this as want to move to freesat in future) do I need to but anything alse apart from a sender and number of receivers I want ?, I already have a cat5 gig network ? Thanks "

Keene replied: You would not need anything else. There is an IR wand that would attach to the Sky box then you just point your Sky remote at the receiver to relay the IR signal.

13 Gordon on 28 Feb 2010 asked  :
"can you only have 1 IR receiver configured when you have multiple IP receivers on the network?"

Keene replied: Each receiver provides IR feedback.

14 Gareth P on 28 Feb 2010 asked  :
" Does the receiver have a scalar in it. This would allow the receiving tv to change the scale of the source allowing say the sender to send at 1080P and one receiver display at 720P and another at 1080i"

Keene replied: It does not have an in built scaler. The input resoultion determines the output resolution.

15 Paul on 28 Feb 2010 asked  :
" The specification mentions " Ultra-High speed compression" does this mean that there is a noticeable degredation in video quality?"

Keene replied: Yes it does use compression (:"M-JPEG Intraframe compression scheme base on the discrete cosine transform (DCT)) but the compression should be unnoticeable on screens up to 46", Above that we'd recommend a direct cabled connection if at all possible.

16 Robert H on 27 Feb 2010 asked  :
"Is the transmitter an HDMI sink or do you need a single or more receivers switched on for the HDMI to output say on a PS3? Also is the network loading very small and is it prioritised QOS or similar so as large file transfers on the network do not affect quality/interrupt the signal? If the source HDMI is carrying 5.1 or 7.1 LPCM is this down mixed to 2CH for the receiver(s), how is this handled? This set-up has the potential to fix many things that I have wanted to do in my system and would allow me to feed all of my rooms as I have wired UTP network in every room from a central gigabit switch and so I am very interested in this product."

Keene replied: The Transmitter operates as a multicast so the network load is the same whether it is sending the signal to one or to 100 receivers. It will only send the signal to one of its own receivers however so you could use a PS3 as the source but not a destination. The audio output is stereo 48Khz.

17 Andrew on 26 Feb 2010 asked  :
" Can you run two or more sets of 'transmitter + multiple recievers' on the same network? i.e run multiple sources each to a separate set of recievers? If Yes, is there any way to then change which transmitter a reciever is paired with? (i.e create a n x m matrix)"

Keene replied: There should be just the one transmitter on the LAN and any number of receivers. Because it works as a multicast the receivers aren't "paired" as such to a particular receiver, rather they are just looking for the signal from a transmitter. This keeps the network bandwidth low and you can use the IR feedback to control an HDMI switcher downstream of the sender, although of course each receiver will always get the same signal.

18 Tom M on 26 Feb 2010 asked  :
" I've got a full Gigabit multi-switch (5 individual switches)network in place at home and want to utilise that existing network to take the HDMI ouput from my Denon AVR4308 about 10m away via my network into my Samsung 50" plasma (both have network points nearby!) I previoulsy have tried your CAT5 HDMI extenders which did not work at all for this function....how will I know this will work? If it doesn't will there be a problem returning it?"

Keene replied: Yes that should be absolutely fine, the HDMI over CAT5 units require dedicated wiring whereas this is specifically designed to use existing LAN wiring. And yes of course we would take it back should there be any problem, although I can't foresee any problems with this application

19 Bryan J on 26 Feb 2010 asked  :
"Will the system work if part of the network is provided by the house mains wiring using proprietary terminals for this?"

Keene replied: Assuming the homeplug devices currently carry the PC network signal without problems then yes the PB900 system should work.

20 Lex D on 26 Feb 2010 asked  :
" Can you provide an explanation of how the PB900 manages HDCP keys from the transmitter to multiple receivers. Thank you in advance."

Keene replied: For this system both the transmitter and receiver are HDCP compliant, so if the content is HDCP protected, then all the displays will also need to be HDCP compliant in order to show the content correctly.

21 Maurice S on 26 Feb 2010 asked  :
" Can it pass HDMI 1920x1200 at 50Hz and 60Hz?"

Keene replied: This is not standard 1080p resolution this system would pass it through provided you can send this down your current HDMI connection. As its not 1080p it would effect the aspect ration possibly producing black bars above and below picture . It will do both 50&60Hz.

22 Richard on 26 Feb 2010 asked  :
"Does the sender have HDMI passthrough please?"

Keene replied: No it does not. You could use a distribution amp to split your source signal two ways.

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