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1  Service Providers / TooWay and KA-SAT satellite / Re: Tooway / Viasat Surfbeam 2 web interface
 on: Sep 18th, 2018 at 5:26pm 
Started by mailliw - Ex Member | Post by ex-para  
I have finally got my TooWay system activated and is now on line, they sent me a replacement Modem and Tria without any quibbling but it was the Modem giving me the problem, I was also  having trouble with explorer on Win10 and was told to use Firefox or Opera but none of these would connect so I tried Linux ( Ubuntu ) although I was told Linux was a no no and it connected with no settings to change at all. I now need a wireless router for wifi which is the main thing I needed the Satellite and noticed you mentioned a Linksys E1200 Wireless Router and how to have it working and was thinking of buying this model. Thanks for all the replies.

2  VSAT technology and installation / Dish pointing and alignment / Re: Skew question
 on: Sep 15th, 2018 at 9:10pm 
Started by tearepa | Post by Admin1  
Linear polarised satellites normally have their polarisations parallel to or at right angles to the earth's axis and equator.

If you are told a polarisation you need to know if this refers to the uplink or downlink. They are normally opposite and very rarely the same polarisation.

Start with the named nominal polarisation. e.g. Vertical means that the broad faces of the rectangular waveguide will be on top and underneath.

There will be a polarisation adjustment amount required. I define the adjustment as positive = clockwise as seen with you standing behind the dish and facing forwards towards the satellite in the sky.  Others may use a different sense (+/-) and the figures given may refer to scales that go forwards or backwards, starting at 0, 90 or 180. I give only the adjustment amount and its direction. You need to apply the adjustment amount using whatever scale or tick marks provided.

In the southern hemisphere, satellites to the north west need anticlockwise adjustments, satellite to the north east clockwise.

I am only aware of two satellite systems with polarisations not oriented with regard to the earth's axis. Eutelsat with +3.5 deg and Astra with +7 deg, both clockwise. The idea was to get the polarisation near vertical/horizontal relative to the ground near the middle of the european coverages to minimise rain depolarisation.

What satellite and beam is at 45 deg ? If something is at 45 deg it sounds like a circular polarisation system where there is a polariser between the OMT and the horn. The polariser is a tube with vanes, rows of pins or slots along two opposite sides. The OMT must be at +/- 45 deg to the polariser vanes. +/- 45 deg gives right circular or left circular. Read how to set up circular polarisation

Prodelin horns with a fat lump on one side of the throat and notches inside the lump is another matter. The fat lump needs to be always towards the feed support arm. To adjust the polarisation angle, turn the entire dish using a giant scale behind the dish. You may turn the BUC/ORU but without turning the horn, but only in 30 deg increments.

To align the polarisation accurately by measurement only, you need to find two severely degradred but exactly equal levels either side of the very broad co-pol maximum. Then turn to the centre by halving the total side to side amount.  If you have spectrum analyser and can see clearly any cross-pol carrier, you can aim for minimum cross pol which appears as a deep narrow null and may be easier to center.

3  Service Providers / TooWay and KA-SAT satellite / Re: Get DHCP then nothing.
 on: Sep 15th, 2018 at 4:25pm 
Started by ex-para | Post by Admin1  
My guess is that when the modem changes to its new IP address, you lose ethernet communication between your PC and the modem, so no further updates to your screen display of signal level or your ability to send commands, like try to change satellite colour etc are possible.  I would expect the modem LEDs to stay unchanged, waiting for you to try to connect to the internet.  If the modem keeps rebooting many times, on its own, I would suspect it is faulty.

At this point I suggest restarting your PC.  If its ethernet network interface has DHCP enabled and DNS to Auto, the ethernet link should start working again as it will learn the new modem IP address and subnet mask as the PC boots and the modem will assign an new IP address to your PC. 

Unless you are in a region where 2 or 3 beams overlap, the initial signal acquisition process will find the strongest signal, i.e. the best beam color. I think if you get as good as 13dB you are within the coverage area of your beam.


4  VSAT technology and installation / Dish pointing and alignment / Re: Skew question
 on: Sep 14th, 2018 at 7:31pm 
Started by tearepa | Post by tearepa  
It's been a while since I've been on but good to be back. I've been scratching my head over this one until now, apparently the beam of this particular craft is offset (skewed) by 45 deg so at the remote the pol adjustment has to skew a further 45 deg to match. Its also been pointed out that the prodelin waveguide has a notch machined into the inside of the throat to account for this, although I didn't get a chance to open it to see. It's a real doozy for those in the field presetting the typical pol with no luck tuning off a moderate eirp.
Presumably to align the bird’s antennas to the coverage area/region?

5  Service Providers / TooWay and KA-SAT satellite / Re: Get DHCP then nothing.
 on: Sep 14th, 2018 at 11:12am 
Started by ex-para | Post by ex-para  
Thank you for your recent reply of which I am studying. Two things i have noticed is before i get undifineddb a new IP address comes on the screen and even if i click on the wrong color satallite icon it still finds the Orange one.

6  Service Providers / TooWay and KA-SAT satellite / Re: Get DHCP then nothing.
 on: Sep 13th, 2018 at 12:08pm 
Started by ex-para | Post by Admin1  
When the signal display changes from 13dB to undefined, this could be due to:

. The actual signal quality suddenly dropping. This could be because the receiver has changed frequency and looking for a different carrier. If this happened the RX LED would go out simultaneously. Is the RX LED still on ?

. It could be that the screen display in the PC has stopped receiving messages from the modem. This is likely due to IP  address failure or cable pulled out. I think the modem changes its IP address once the install process is completed. Try powering off the PC and restarting it, making sure that its network interface is IPv4 and DHCP enabled and DNS to Auto.

This document may help:
https://www.rysuk.com/connex/eutooway/Europasat%20-%20Troubleshooting%20Tooway%2...

If you open a black command prompt window try ipconfig .

In Windows 10 press the Window key and R key at the same time and enter cmd, otherwise for Win 7, I think you need to do Windows Start Search box, cmd, Run as administrator.

Best regards, Eric.

7  Service Providers / TooWay and KA-SAT satellite / Re: Get DHCP then nothing.
 on: Sep 12th, 2018 at 4:50pm 
Started by ex-para | Post by ex-para  
Thanks for the reply I thought I wasn’t going to get any I
have done as you said but again I get to DHCP for a few seconds and
then the signal strength goes from 13 db plus to nothing and I get
undefined db and the it starts syncing again but never gets past
syncing and does not go to the orange satellite until I start all over
have done as you said but again I get to DHCP for a few seconds and
then the signal strength goes from 13 db plus to nothing and I get
undefined db and then it starts syncing again but never gets past
syncing and does not go to the orange satellite until I start all over
again all the way to Entering Network and then DHCP and no further. My
supplier said I could be the cable so got a new one but no better I
was told to try Firefox but it wont connect same with Opera. Also if I unplug the modem I get undefined db. And I have noticed when I finally get entering networks and then DHCP an IP address appears and then undefined db and most of the data shows undefined just like if I had switched off. Could the modem be dodgy?

8  Service Providers / Satellite Internet - Europe / One way satellite internet in Finland
 on: Sep 8th, 2018 at 6:59pm 
Started by Admin1 | Post by Admin1  
Does anyone still offer 'one way' satellite internet connection in Finland such that the download would be via Hotbird (or similar) and the uplink via old style phone line modem?

Best regards, Eric.

9  Service Providers / TooWay and KA-SAT satellite / Re: Get DHCP then nothing.
 on: Sep 8th, 2018 at 4:11pm 
Started by ex-para | Post by Admin1  
I'm back.

Two ideas:

1. Contact your service re-seller and ask.

2. DHCP relates to the allocation of IP addresses when connecting to a network.  I think it is important that your device interface is configured to DHCP / Auto rather than to some specific IP address. 

Setting your PC local area network port varies according to operating system etc.

Examples:

In Local Area Connection Properties select V4, deselect V6.

In Local Area Properties Select Internet Protocol TCP/IP

In Internet Protocol V4
   Select Obtain IP address automatically.
   Select Obtain DNS Auto

After making these DHCP settings you may need to restart your PC for these to take effect.

I don't understand why dB shows undefined. If you see 13 dB does it reduce to zero ? 13 dB sound good to me.

Eric

10  Service Providers / TooWay and KA-SAT satellite / Re: Get DHCP then nothing.
 on: Sep 6th, 2018 at 4:50pm 
Started by ex-para | Post by ex-para  
I forgot to mention i get Undefined db