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.



525 posts

Ultimate Geek
+1 received by user: 6


Topic # 103107 30-May-2012 15:30 Send private message

I have a DishTV PVR which allows me to watch the Australian and BBC channels and the Freeview Channels but if I want to record say the BBC I cannot watch the Freeview channels even though I have two decoders in my STB.
I presume this is because I can only access one LNB at a time.
Is there any way around this short of dual feeds from Dish?






Nexus 6 Phone
Nexus 5 Phone
Nexus 7 2013 Tablet
Samsung Galaxy SIV rooted
Samsung P1000 7" Tablet
Samsung 8.9" Tablet
Asus Nexus Tablet 7.0

ASUS eee Transformer with dock
Speedtest


Create new topic
727 posts

Ultimate Geek
+1 received by user: 7


  Reply # 632780 30-May-2012 18:04 Send private message

ronw: I have a DishTV PVR which allows me to watch the Australian and BBC channels and the Freeview Channels but if I want to record say the BBC I cannot watch the Freeview channels even though I have two decoders in my STB.
I presume this is because I can only access one LNB at a time.
Is there any way around this short of dual feeds from Dish?


No.

46 posts

Geek


  Reply # 634215 1-Jun-2012 15:14

ive heard from dish tv that in later firmwares this feature will be added unknown as to when though 

12187 posts

Uber Geek
+1 received by user: 862

Trusted
Subscriber

  Reply # 634228 1-Jun-2012 15:23 Send private message

There are devices called stackers that will transpose one LNB up to the 2-3GHz band to allow you to run it down a single cable, then another device at the other end moves it back down to the 1-2GHz band.

Cost plenty tho, when I looked at it, the costs of a second cable were nothing in comparison.




Richard rich.ms



525 posts

Ultimate Geek
+1 received by user: 6


  Reply # 634389 1-Jun-2012 20:36 Send private message

Why cannot you use some kind of diplexer to combine the two and separate them at the STB end?


richms: There are devices called stackers that will transpose one LNB up to the 2-3GHz band to allow you to run it down a single cable, then another device at the other end moves it back down to the 1-2GHz band.

Cost plenty tho, when I looked at it, the costs of a second cable were nothing in comparison.




Nexus 6 Phone
Nexus 5 Phone
Nexus 7 2013 Tablet
Samsung Galaxy SIV rooted
Samsung P1000 7" Tablet
Samsung 8.9" Tablet
Asus Nexus Tablet 7.0

ASUS eee Transformer with dock
Speedtest


256 posts

Ultimate Geek
+1 received by user: 3


  Reply # 634402 1-Jun-2012 20:59 Send private message

Simple, just run 2 cables and use a multiswitch, 




 

883 posts

Ultimate Geek
+1 received by user: 21

Trusted

  Reply # 634405 1-Jun-2012 21:11 Send private message

ronw: Why cannot you use some kind of diplexer to combine the two and separate them at the STB end?

That is what a stacker is.

Oftentimes the transponder frequencies fall in the same range so diplexing them would just make a "mess". Also, with satellite signals there is usually the complexity of polarisation signalling - different voltages in the cable - and/or 22 kHz tone signalling (for LNB and/or band selection).

In this case the intermediate frequencies are possibly sufficiently separated to be diplexed if you had good band pass filters to remove the other transponders:

990MHz for 4160H BBC/AN on IS5, assuming a 5150 MHz LNB
1706 MHz for 12456H on D1, assuming a 10750 MHz (an 11300 MHz LNB results in 1156 MHz in the cable, which might be too close)
The transponders are also on the same polarisation, which is important.

Would be an interesting experiment but probably end up cheaper and more flexible in the long run to get a second cable.

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:





Trending now »

Hot discussions in our forums right now:

Why does Lightbox have a suicide wish?
Created by dafman, last reply by Wade on 4-Mar-2015 21:45 (109 replies)
Pages... 6 7 8


Galaxy s6 announcement and owners thread
Created by Shoes2468, last reply by Kopkiwi on 5-Mar-2015 13:31 (96 replies)
Pages... 5 6 7


Considering Snap - do you rate them?
Created by gsmithnz, last reply by attewell on 5-Mar-2015 15:02 (36 replies)
Pages... 2 3


Whats your USB charging solution?
Created by macuser, last reply by Journeyman on 4-Mar-2015 17:52 (37 replies)
Pages... 2 3


Privacy concerns on returning faulty microSDXC
Created by dpw, last reply by andrewbnz on 3-Mar-2015 22:41 (34 replies)
Pages... 2 3


HTC One M9 (2015) Announcement and Discussion
Created by Dingbatt, last reply by Dingbatt on 3-Mar-2015 22:25 (48 replies)
Pages... 2 3 4


Tracking broadband usage on unlimited plans...
Created by andrew027, last reply by Talkiet on 2-Mar-2015 15:10 (15 replies)

TelstraClear cable in Wellington down for two days?
Created by jamesmcd, last reply by dm2000 on 1-Mar-2015 20:33 (15 replies)


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.