[dvblast-devel] DVB-S2 modulators

FRANCISCO RUIZ fjrr1 at msn.com
Sun Apr 17 19:36:12 CEST 2016


Hello,

I can do the test with 1 qam modulator MOTOROLA ip multicast mpst input.

do you have the instruction to install the mptsd on ubuntu 15.04??

regards

Ing. Francisco Ruiz
http://www.eltigre-catv.com
Mission Texas USA
Phone: 1-956-8446356


From: barhom at netsat.se
Date: Sun, 17 Apr 2016 01:36:02 +0000
To: dvblast-devel at videolan.org
Subject: Re: [dvblast-devel] DVB-S2 modulators

You should be able to create a mpts using something like;https://github.com/gfto/mptsd

This will take any UDP/RTP input (even http) and create a mpts. Georgi tested this with DVB-C modulators and that works fine so this should also work with DVB-S2 modulators that can take IP Input.
Is there anyone out there that has a DVB-S2 modulator that can do IP INPUT that are willing to test?


On Sun, Apr 17, 2016 at 3:07 AM Ahmed Ramze <ahmedramze at gmail.com> wrote:
Hi again
there is too many brands are support ip input or SDI or ASI like newtec ,or datacom , but its not support to mix all udp/ips into one frequency thats need licence and additional boards wich its too much expensive like newtec MD6xxx series modulator.
the best solution its 
IP/UDP/RTP ===> IP mux ASI ====> DVB-S2 modultor ===> BUC/HPA sat (or directly to Reciver with out sat.)
we already did this with MVDS by sending video over internet and re-broadcasting it again.
Eng.Ahmed RamzeCEOHighSpeedTelecom.Net+961-76688533+964-7804445566


On 17 Apr 2016, at 03:37, Ibrahim Tachijian <barhom at netsat.se> wrote:

@Ahmed RamzeIn my use case I cannot user RF to fiber. I must send the transponder in question using IP/UDP and convert it back to DVBS2.
@Metin Olgun"IP Input Modulator" is exactly what Im looking for, but I havent found any that seem good yet. Im imaginig what Im looking for is something that is standalone where I can go to the webinterface and input the following details:
1. IP Input Multicast Address2. Output DVB-S2 frequency + symbol rate + polarisation
And then be good to go.

On Sun, Apr 17, 2016 at 2:31 AM Metin Olgun <olgun.metin at gmail.com> wrote:
I think there should be an IP input modulator.. Forex Newtec should have such a modulator.. But it is a professional one and costly solution. Your STB is only dvb-s? Cos there are IP STBs as well but if the requirement is to test dvb-s STBs then you certainly need a modulator, where modulator might not be enough.

Sent from my iPhone
On 16 Apr 2016, at 19:24, Ibrahim Tachijian <barhom at netsat.se> wrote:

Here's a more detailed example of what I'm trying to do:

1. Use DVBLasts "-d" parameter to stream an entire transponder to an IPv4 address2. Have some kind of DVB-S2 modulator device (either stand alone or pci-e) read this UDP/TS stream created by DVBLast and convert it back into DVB-S2.
In case you want the reason behind doing this;
Location A has a Satellite dish and a server with dvb-s2 tuner connected using dvblastLocation B has no Satellite dish but requires a live-feed of one transponder for testing Set top boxes.


On Sun, Apr 17, 2016 at 1:59 AM Ahmed Ramze <ahmedramze at gmail.com> wrote:
Hello 
There is no Modulator with IP in all modulator come with ASI input its broadcast standards with DVB transport stream .the dektek the best experimental equipment but its too expensive comparing with other products.  
for your application you need IP to ASI converter/processor  then DVB-C/T/S any type.
the price for IP to ASI depend on price the chines cost 1800-2500$ other modules up to 15,000$ depend on Number of  input IP and number output ASI ports and MUX function which its multiplex the IPs.
any way if you want to buy modulator I have DVB-S with ASI input with variable symbol rate from 1000-45000 and there is DVB-S2 with variable symbol rate from 1000-27500.and we have 16 UDP/IP in with 4 ASI out with Multiplexer.contact me at this email or on info[at]HighSpeedTelecom[dot]net
Ahmed.







On Sun, Apr 17, 2016 at 2:44 AM, Ibrahim Tachijian <barhom at netsat.se> wrote:
Hey,
Can anyone recommend a DVB-S2 modulator, either stand alone or one that works in linux?
I'm trying to achieve the following:
1. Use dvblast to send dvb-s2 channel to udp (done)2. Save the stream using multicat to file on disk (done)3. Stream the saved .ts file through a DVB-S2 modulator to be played back on a DVB-S2 STB decoder.
Basically, I'm looking for IP->DVB-S2 modulator that can take either file or multicast input. And I would  prefer a device that has several modulators in one so that I can output 2,3 or 4 DVB-S2 transponders simultaneously.
This product seems perfect on paper (Except that it is DVB-C and not DVB-S2):http://www.dektec.com/products/IP/DTE-3114/

This seems fairly expensive and it only does 1 DVB-S2 output:http://www.dektec.com/products/PCIe/DTA-2107/

This is completely new, looks cool, even does rack mount but is extremely expensive and does not run on linux:http://www.dektec.com/products/USB/DTU-315/

I'm fine with testing no-name chinese branded modulators even if they are bulky rackmounted units.
Does anyone have any experience with dvb-s2 modulators and can recommend one?
Thanks,









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-- 
-- 
Best Regards..
--------------------------
Eng.Ahmed RamzeCEO HighSpeedTelecom S.A.R.L IQ +9647901109967Leb +96176688533

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