Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 
147 posts

Master Geek
+1 received by user: 2


  Reply # 293734 28-Jan-2010 06:50
Send private message

I have twin 10750's on the way which might suit your purpose even better, as these are not Universal's, as opposed to the MTI. Should be here in 2 weeks so will keep you posted once I do some testing.



1032 posts

Uber Geek
+1 received by user: 43

Trusted

  Reply # 295762 3-Feb-2010 16:09
Send private message

My multiswitch arrived today! Have yet to test it because it has an American power plug but once I get an adaptor (yes the PS is 100-250V @50-60Hz) I'm sure it will do the trick nicely. The manual says that the voltage on each satellite input is fixed at either 13V or 18V but that 22kHz can be switched on or off via a little toggle switch which means it should be compatible with most LNBs. Speaking of LNBs, I'll be looking to buy LNBs in the next week or two.

@kiwisat
Definitely let me know how the 10750 twin standard LNBs go for you. I'm particularly interested to know whether you could mount three on a single dish to receive D1, D2 and C1/D3. Many of the twin LNBs that I have seen photos of look like they might not be able to fit that close together (with correct skew at 4deg separation) and dtvs seemed to imply this was a problem. I'd also appreciate it if you could PM me with an approximate price.

 
 
 
 


147 posts

Master Geek
+1 received by user: 2


  Reply # 296228 4-Feb-2010 22:04
Send private message

What size of dish are you intending to use with this setup as that will pretty much determine if you can get all 3 birds? I would personally use about 80cm and a good one at that. The skew for the 3 sats you mention is not a big issue as they are similar, but Intelsat 8Ku is not.

Better PM me as you don't seem to have the email button on your profile for me to PM you.



1032 posts

Uber Geek
+1 received by user: 43

Trusted

  Reply # 296249 4-Feb-2010 23:27
Send private message

Well I've tried out the multiswitch and the results are a bit of a mixed bag...

Terrestrial/analog TV seems to work okay as long as the unit is working in active mode with the UHF aerial input attenuation at minimum. I think the analog TV quality is marginally down on what it was before putting the unit in, but I guess that is to be expected given we're now splitting 8 way instead of 4. FM radio seems to work slightly better...

As for satellite: there's some issues for the computer although the FTA STB is fine. For testing purposes I've plugged our existing LNB into the first LNB input which allows the switch to deliver vpol signals from D2 to any of the 8 outputs. On the computer, one of the transponders (12546) is consistently untunable and another 2 (12706, 12734) are lower than they used to be on the signal strength measurement (MediaPortal tuning). Also, the 12644 transponder can only be tuned if you change the tuning parameters to 12646 (Weird! Maybe signal strength is borderline?). When I try daisy chaining the computer off the STB's line out like it used to be (leaving the STB connected through the splitter) the computer signal strength on 706 and 734 seems to improve marginally but 546 is still completely untunable and 644 must be tuned as 646. When I go back to the original satellite setup (LNB connected directly to STB, computer connected to line out of STB) the 12546 transponder can be tuned again but the 12706 transponder is now untunable!

Any advice?

30 posts

Geek


  Reply # 296252 4-Feb-2010 23:49
Send private message

mm1352000: Well I've tried out the multiswitch and the results are a bit of a mixed bag...

Terrestrial/analog TV seems to work okay as long as the unit is working in active mode with the UHF aerial input attenuation at minimum. I think the analog TV quality is marginally down on what it was before putting the unit in, but I guess that is to be expected given we're now splitting 8 way instead of 4. FM radio seems to work slightly better...

As for satellite: there's some issues for the computer although the FTA STB is fine. For testing purposes I've plugged our existing LNB into the first LNB input which allows the switch to deliver vpol signals from D2 to any of the 8 outputs. On the computer, one of the transponders (12546) is consistently untunable and another 2 (12706, 12734) are lower than they used to be on the signal strength measurement (MediaPortal tuning). Also, the 12644 transponder can only be tuned if you change the tuning parameters to 12646 (Weird! Maybe signal strength is borderline?). When I try daisy chaining the computer off the STB's line out like it used to be (leaving the STB connected through the splitter) the computer signal strength on 706 and 734 seems to improve marginally but 546 is still completely untunable and 644 must be tuned as 646. When I go back to the original satellite setup (LNB connected directly to STB, computer connected to line out of STB) the 12546 transponder can be tuned again but the 12706 transponder is now untunable!

Any advice?


sounds very much like low signal, really. Do you have a meter to check with, or an inline amp? Ive found my pc sat card a lot more picky about signal strength than STBs have been.



1032 posts

Uber Geek
+1 received by user: 43

Trusted

  Reply # 296263 5-Feb-2010 00:40
Send private message

Thanks for your thoughts Etacovda. I concur with your observation about computers vs. STBs/TVs. I also agree that signal strength is probably the issue. The thing that gets me is the untuneable transponder thing - why *can't* I tune 706 when the computer is daisy chained (where I could before) and why *can* I tune it when the computer is fed from the multi-switch (and vice-versa for 546, although maybe this one is more understandable)!

Unfortunately I don't have a meter. As far as amps/splitters go, all I have is the powered multi-switch mentioned above, a passive 4 way Hills splitter and a 2 way Kingray splitter/amplifier (sa182) "optimised for both digital and analogue TV signal amplification" (I have found it to be unsuitable for satellite signals even though it has f-type inputs and outputs).

1 | 2 
View this topic in a long page with up to 500 replies per page Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Vocus New Zealand on the block as Aussies bail
Posted 23-Oct-2017 17:06


Vodafone TV — television in the cloud
Posted 17-Oct-2017 19:29


Nokia 8 review: Classy midrange pure Android phone
Posted 16-Oct-2017 07:27


Why carriers might want to embrace Commerce Commission study, MVNOs
Posted 13-Oct-2017 09:42


Fitbit launches Ionic, its health and fitness smartwatch
Posted 12-Oct-2017 15:52


Xero launches machine learning automation to improve coding accuracy for small businesses
Posted 12-Oct-2017 15:45


Bank of New Zealand uses Intel AI to detect financial crime
Posted 12-Oct-2017 15:39


Sony launches Xperia XZ1, a smartphone with real-time 3D capture
Posted 11-Oct-2017 10:26


Notes on Nokia’s phone comeback
Posted 10-Oct-2017 10:06


Air New Zealand begins Inflight Wi-Fi rollout
Posted 9-Oct-2017 20:16


The latest mobile phones in perspective
Posted 9-Oct-2017 18:34


Review: Acronis True Image 2018 — serious backup
Posted 8-Oct-2017 11:22


Lenovo launches ThinkPad Anniversary Edition 25
Posted 7-Oct-2017 23:16


Less fone, more tech as Vodafone gets brand make-over
Posted 6-Oct-2017 08:16


API Talent Achieves AWS MSP Partner Status
Posted 5-Oct-2017 21:20



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.