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1  Service Providers / OneWeb LEO satellite constellation discussion forum / OneWeb satellite constellation in new ownership 2020
 on: Jul 31st, 2020 at 4:38pm 
Started by Admin1 | Post by Admin1  
I've just started this new discussion forum heading, hoping that people will find it a place where they can contribute and ask questions.

This first post is something of an experiment. I'm simply hoping that this message displays correctly and does not corrupt anything. I backed up the whole satellite internet forum first so if things do go wrong I can back out. If so most recent posting and new members may get deleted. I hope not.

29 July 2020: Hughes Network Systems (HNS), say they will put $50 million into the consortium of the UK govenment and Bharti to buy OneWeb out of bankruptcy.

HNS has been involved with OneWeb since 2015 when it invested $50 million in OneWeb in 2015, alongside Airbus Group, Bharti Enterprises, Coca-Cola, Intelsat, Qualcomm, Totalplay and the Virgin Group. That initial funding amounted to $500 million.

OneWeb raised $3.4 billion and launched 74 out of 648 small broadband satellites before filing for chapter 11 bankruptcy protection in March 2020.

The British government and Bharti placed the winning bid to acquire OneWeb in July 2020, with each agreeing to invest $500 million to revive the megaconstellation startup.

Hughes has been building earth station gateway antennas for OneWeb but the work is unfinished.

OneWeb is expected to offer satellite internet connections for Governments and business sites plus cellular backhaul needs and Wi-Fi hotspots for schools and communities.

I'm hoping visitors will add more content here about the history to date and how the system works. I must read up more myself !

Best regards, Eric

2  Anything else / General and other topics / Re: Could IPv6 Networks Revolutionize ?
 on: Jul 28th, 2020 at 7:22pm 
Started by trafficsqueezer - Ex Member | Post by Admin1  
I've got an IPV6 address here (as well as IPV4 address) and was wondering what, if anything, I could do with it.
Is there any point in putting server on it ?  Would anyone be able to come to it if the IPV6 address was put on a DNS record ?
What can it be used for ?

Best regards, Eric

3  Service Providers / Satellite Internet - India, Asia and Australia / Re: Dream TV satellite reception in Brisbane?
 on: Jul 28th, 2020 at 7:14pm 
Started by legastomd - Ex Member | Post by Admin1  
If you are looking for satellite TV in Brisbane, Australia the listings of channels here should be of interest:
https://www.lyngsat.com/freetv/Australia.html
Note satellite longitude and channel frequency. The type of LNB and antenna depends on the frequncy band (C or Ku) and the downlink power of the beam.

If you are interested in a satellite internet connection (i.e. you are unable to get a terrestrial wired or wireless connection then this this page will hopefully help:
https://www.ivsat-asia.htm

Best regards, Eric.

4  VSAT technology and installation / iDirect Forum: hubs and terminals / iMonitor Active Conditions messages do not disappear
 on: Jul 27th, 2020 at 3:16pm 
Started by Dev Latino | Post by Dev Latino  
Hi All,

I am using IDX 4.1.3.3 - 21.0.3.3

Normally the messages/alarms do disappear on "Active Conditions" section once the alarm clears or a new relevant alarm pops up.
But, it doesn't with this new version of iMonitor.

So, 100's of messages remains, which makes the monitoring of the network nearly impossible.

Any solutions highly appreciated.

5  VSAT technology and installation / iDirect Forum: hubs and terminals / Re: TAC login
 on: Jul 22nd, 2020 at 8:11pm 
Started by ydh - Ex Member | Post by Admin1  
I understand that you have two remote sites with SCPC links between them.

At your monitor location, if you have a CDM receive only with exact same configuration as at the remote receive site then you will output the same IP data stream. Take care not to connect that to the internet otherwise the packet destinations will get two copies of everything! (This can happen if you have a rack of CDM RXs with pre-configured hot spares ready)

Set the symbol rate, scrambling, FEC method and code rate  the same as your working point to point link.

Once locked up the monitor CDM will start building statistics on traffic flow.  You can access these statistics on the modem.

Alternatively I now understand that you may be able to obtain IP access to the live CDM570 at one or other of the two remote sites and then be able to remotely monitor the traffic between the two remote sites using the statistics in the modems. You will also be able to check the receive Eb/No etc.

6  VSAT technology and installation / iDirect Forum: hubs and terminals / Re: TAC login
 on: Jul 22nd, 2020 at 5:50pm 
Started by ydh - Ex Member | Post by Hamod  
Thank you for your feedback.
What I'm saying, in essence, is that you can monitor ip utilization of rf carrier using PRTG only if you have IP access to that link. In this case, there is no IP access because it's a remote site. We can only see the carriers on the spectrum analyzer and with that we can see if the carrier is up or down. My question now, is there an alternative way to monitor such traffic of that link even if it's not passing through our hub?

7  VSAT technology and installation / iDirect Forum: hubs and terminals / Re: TAC login
 on: Jul 20th, 2020 at 6:01pm 
Started by ydh - Ex Member | Post by Admin1  
Updated:

1. At your monitor site connect a CDM-570 or dual or quad CDM RX module as receive only and set it to the same parameters as your point to point SCPC link between the two remote sites.  Read the CDM-570 handbook regarding the statistics which are accumulated in the modem.

2. I understand that you are now trying to get specific IP address access to the actual modems at the remote sites. You will then be able to to monitor the stats directly, without having to visit the remote sites.

8  VSAT technology and installation / iDirect Forum: hubs and terminals / Re: TAC login
 on: Jul 20th, 2020 at 4:12pm 
Started by ydh - Ex Member | Post by Hamod  
Dear all,

Is there anyway to monitor throughout (IP utilization) of a satellite SCPC link that do not go through your own hub? instead; it's a remote site. We can only monitor the RF aspect. To monitor utilization of the carrier we need IP access to the RF carrier. Whereas in this case, it's a remote site where both uplink and downlink carriers do not go through our hub, we are unable to monitor utilization. It's an SCPC link using comtech 570L modem. How can we monitor it?
I await your kind response.

9  VSAT technology and installation / iDirect Forum: hubs and terminals / Can not udp push the option file on 16APSK from iBuilder
 on: Jul 10th, 2020 at 10:46am 
Started by Alec | Post by Alec  
Hello guys, we have a version 4.1.2 HUB and face a very strange thing. I can apply configuration by push UDP in modcods more than 8PSK for example 16ASPK 3/4. Did anyone experience it before?

10  VSAT technology and installation / iDirect Forum: hubs and terminals / Re: burst switch problem on ULC-T line card
 on: Jul 9th, 2020 at 8:53am 
Started by Alec | Post by Admin1  
I don't understand "burst switch".  The spec for the iDirect ULC-T line card suggests that it only transmits one continuous carrier type DVB-S2 or DVB-S2X.
ref: ProductSheet-ULC-T.pdf

If you have the manual look for an explanation of tx bs command.

While testing and experimenting take care not to have the output radiating to a satellite!