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.




643 posts

Ultimate Geek


#59202 29-Mar-2010 23:15
Send private message

would a bigger dish prevent sun outage or am i wasting my time?

Create new topic
2503 posts

Uber Geek

Lifetime subscriber

  #312677 29-Mar-2010 23:17
Send private message

No.




Spark FibreMAX using Mikrotik CCR1009-8G-1S-1S+. UAP, UAP AC Pro, UAP AC Pro Mesh, Apple TV 4, Apple TV 4K, iPad Air 1, iPhone 6s, VodaTV Gen 2. If it doesn't move then it's data cabled.


767 posts

Ultimate Geek


  #312693 30-Mar-2010 00:33
Send private message

Can sky fix the outages and have 2 sat up there running at the same time




               The Biggest and the Best.

 
 
 
 


BDFL - Memuneh
67534 posts

Uber Geek

Administrator
Trusted
Geekzone
Lifetime subscriber

  #312748 30-Mar-2010 09:59
Send private message

Two satellites wouldn't solve this. It's a technology problem.




 

 

These links are referral codes

 

Geekzone broadband switch | Eletricity comparison and switch | Hatch investment (NZ$ 10 bonus if NZ$100 deposited within 30 days) | Sharesies | Mighty Ape | Backblaze | Amazon | My technology disclosure 


Go Hawks!
1014 posts

Uber Geek

Trusted
Subscriber

  #313152 30-Mar-2010 21:38
Send private message

freitasm: Two satellites wouldn't solve this. It's a technology problem.


Similar to the air gap problem if you are still connecting things via cables ... 



643 posts

Ultimate Geek


  #313215 30-Mar-2010 22:28
Send private message

So much for the sun outage, at 1.30pm (as stated in the skywatch magazine) there should have been a sun outage? Well not for me, not at 1.30pm, the sun wasnt even far enough around for it to happen, if it was going to happen it would be at 2.30pm, thats when the sun was lined up with my dish. I dont think sky have taken into account daylight saving when they published skywatch? Yes that time of 1.30pm would have been correct a few years ago but daylight saving times have since been shifted by a few weeks. Even at 2.30pm I never got sun outage, picture didnt pixilate not one bit, the signal level only dropped by about 3% during that 10min period and im using just a normal skydish.

2898 posts

Uber Geek

Trusted
Subscriber

  #313241 30-Mar-2010 23:06
Send private message

The solar outages start out with little affect and over several days the affect on the signal grows until it reaches a peak, then subsides slowly over a few days. Basing your assumption on one solar outage at the beginning of the period isn't accurate.




Check out my LPFM Radio Station at www.thecheese.co.nz cool


144 posts

Master Geek


  #314084 2-Apr-2010 01:36
Send private message

I sort of understand but not fully

If the sattelite is 160 degreees ( 0 degrees longatude ) would this only happen when the sun and the sattelite are in line - differnt times depending on where in NZ you are and only in June where the sun is at the most northern point but as NZ is below the tropics I cant understand why

Example dish points at optus D1  ( northerly direction from NZ ) so sun need to be behind that and at say 35 degress ( average for some kiwis ) would the sun have to be directly between the sattelite and the earth receiving dish ?

what sky print in the web site in my opinion should only happen if your longade is 0 degrees

 
 
 
 


7625 posts

Uber Geek

Trusted
Subscriber

  #314099 2-Apr-2010 09:21
Send private message

The sun cannot go between the satellite and earth, some basic understanding of the location and distance of these things would show you that.

The issue is the sun appears directly behind the satellite as seen by each dish, so the exact time is different for each dish by some minutes. The mechanism of the outage is that the noise from the sun in the frequency band of of the satellite service will exceed the signal from the satellite when the sun is directly behind the satellite and in the direct bore sight of your dish. The end result is that your satellite recivers LNB on the dish is overpowered by the noise from the sun totally drowning out the signal from the satellite.

Cyril



643 posts

Ultimate Geek


  #314137 2-Apr-2010 12:20
Send private message

During summer the sun sits high in the sky and its path across the sky crosses above D1's position, its the opposite during winter, the suns path is below D1, obviously this path of the sun will change and at some point the suns path will cross directly behind D1, this happens during equinox. Sun outtage wont just happen on D1/Skytv. It will happen on every geostationary satellite as the sun moves across the sky, sun outage will occur at different times depending on the satellites position, D1 is at 160d so it happens at approx 2.30pm. If your dish happened to be a concave mirror you would find that when sun outage was due to occur, it would burn a hole in your lnb as the suns rays would be focused instead of the sat signal.

767 posts

Ultimate Geek


  #314375 3-Apr-2010 12:57
Send private message

So if sky using 2 sat one at 165 and other one at 164 will that work? Or bit more fait to about 162 or 160




               The Biggest and the Best.

270 posts

Ultimate Geek


  #314439 3-Apr-2010 17:42
Send private message

If Sky uses two sats, you would need either two dishes or two LNBs, and then switch between them manually. It would cost both you and Sky a ludicrous amount of money just to avoid an outage of like half an hour a year total during the middle of the day.



643 posts

Ultimate Geek


  #314454 3-Apr-2010 18:47
Send private message

i dont really care about 10 mins loss of sky during the day as im never home, im at work.

955 posts

Ultimate Geek

Trusted

  #314617 4-Apr-2010 10:18
Send private message

Jarno: If Sky uses two sats, you would need either two dishes or two LNBs, and then switch between them manually. It would cost both you and Sky a ludicrous amount of money just to avoid an outage of like half an hour a year total during the middle of the day.


Sky has the option of using two satellites.
They are 8° apart in the orbital slot , so the sun wont be lined up behind them both.
You dont need two dishes , but they also dont have enough capacity to transfer all of D1
over to D3 even temporarily , so it's a moot point

7625 posts

Uber Geek

Trusted
Subscriber

  #314628 4-Apr-2010 10:48
Send private message

As I understand it that currently if D1 was to fall over their is no way the current boxs (due to lack of firmware strategy) can swap to D3 without user intervention, so D3 as a backup is a bit of a moot point all round.

Cyril

1049 posts

Uber Geek


  #314917 5-Apr-2010 11:26
Send private message

gareth41: i dont really care about 10 mins loss of sky during the day as im never home, im at work.


Same here, and if you were home - hell, make a coffee and read the paper for 10 mins. It's not the end of the world.

Create new topic





Twitter and LinkedIn »



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 »

Soul Machines joins forces with the World Health Organization
Posted 13-Jul-2020 18:00


Chorus completes the build and commissioning of two new core Ethernet switches
Posted 8-Jul-2020 09:48


National Institute for Health Innovation develops treatment app for gambling
Posted 6-Jul-2020 16:25


Nokia 2.3 to be available in New Zealand
Posted 6-Jul-2020 12:30


Menulog change colours as parent company merges with Dutch food delivery service
Posted 2-Jul-2020 07:53


Techweek2020 goes digital to make it easier for Kiwis to connect and learn
Posted 2-Jul-2020 07:48


Catalyst Cloud launches new Solutions Hub to support their kiwi Partners and Customers
Posted 2-Jul-2020 07:44


Microsoft to help New Zealand job seekers acquire new digital skills needed for the COVID-19 economy
Posted 2-Jul-2020 07:41


Hewlett Packard Enterprise introduces new HPE GreenLake cloud services
Posted 24-Jun-2020 08:07


New cloud data protection services from Hewlett Packard Enterprise
Posted 24-Jun-2020 07:58


Hewlett Packard Enterprise unveils HPE Ezmeral, new software portfolio and brand
Posted 24-Jun-2020 07:10


Apple reveals new developer technologies to foster the next generation of apps
Posted 23-Jun-2020 15:30


Poly introduces solutions for Microsoft Teams Rooms
Posted 23-Jun-2020 15:14


Lenovo launches new ThinkPad P Series mobile workstations
Posted 23-Jun-2020 09:17


Lenovo brings Linux certification to ThinkPad and ThinkStation Workstation portfolio
Posted 23-Jun-2020 08:56



Geekzone Live »

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


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



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.