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I have a NewTec DVB modulator. I set it up years ago and for the most part it works, but i have noticed some oddities over the years and i wonder if the FEC and SR have anything to do with it.
Currently, i have it set to : DVBS 1/2 FEC SR 30000
The modulator is 99% used with DCII signals and Dish Turbo 8psk signals. Those signals are then output to the above setting. My question is, is there more of a science to this than just picking any SR rate. Is there a way based on what signals im mostly utilizing, what output settings i should be using?
Example : Common dish network signals would be : DVBs FEC 2/3 with an SR 20500 or 21500
Common DCII signal would be : DVBs2 FEC 5/6 SR 30000 or DCII FEC 3/4 SR 29270
Does it matter what i set my Modulator too?? Thanks!
Currently, i have it set to : DVBS 1/2 FEC SR 30000
The modulator is 99% used with DCII signals and Dish Turbo 8psk signals. Those signals are then output to the above setting. My question is, is there more of a science to this than just picking any SR rate. Is there a way based on what signals im mostly utilizing, what output settings i should be using?
Example : Common dish network signals would be : DVBs FEC 2/3 with an SR 20500 or 21500
Common DCII signal would be : DVBs2 FEC 5/6 SR 30000 or DCII FEC 3/4 SR 29270
Does it matter what i set my Modulator too?? Thanks!
2 Replies
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1399 views
Well, after doing some tinkering :
I found this link : Satbroadcasts.com - no. 1 source for professional work
With my DSR6000 DCII Commercial Receiver, i tuned to a channel. We will call it TurboChannel. I got the DCII tuner to spit out the following information :
I noticed the BitRate was 41 Mbps. Using the Calculator in the link above, i piped in my Modulator settings of DVBS FEC 1/2 and SR of 30000, and it calculated at bitrate of 28 Mbps. My bitrate falls short of the original source. That sounds potentially problematic. I reset the modulator to DVBS FEC 7/8 which is the highest i can set on the DVBs modulator. I then re-ran the calculation of the new settings and the website calculated a bitrate of 48 Mbps, which is now above the source bitrate.
So far, the video looks to have no issues. In the past, i noticed little glitches such as flashing on certain services. It might be fully resolved, but ill have to let time and different channel surfing see if the problem is resolved.
I originally picked 1/2 because i split the signal to 5 separate coax cables, and i know the lower the fec, the lower the db required to gain the signal. But, i also see, it limits the total bandwidth, i am assuming as a trade off for forward error correction. I switched it to 7/8 without issues and my signal is 24dB. Very strong.
If anyone has any thoughts, I'm all EARS.
I found this link : Satbroadcasts.com - no. 1 source for professional work
With my DSR6000 DCII Commercial Receiver, i tuned to a channel. We will call it TurboChannel. I got the DCII tuner to spit out the following information :
RS Locked: No
VIT Locked: No
BER estimate: 0.000000
Modulation Mode: Turbo 8PSK
Symbol Rate: 21.50 Msps
Code Rate: 2/3 1.92
Spectral Inversion: Normal
FEC Phase: 0
Frequency: 1236.000000 MHz
SNR estimate: 18.457031 db
Carrier Error: -0.822774 MHz
Output Bit Rate: 41.200001 Mbps
RS uncorrectable errors: 0
Input Power: -46.913193 db
I noticed the BitRate was 41 Mbps. Using the Calculator in the link above, i piped in my Modulator settings of DVBS FEC 1/2 and SR of 30000, and it calculated at bitrate of 28 Mbps. My bitrate falls short of the original source. That sounds potentially problematic. I reset the modulator to DVBS FEC 7/8 which is the highest i can set on the DVBs modulator. I then re-ran the calculation of the new settings and the website calculated a bitrate of 48 Mbps, which is now above the source bitrate.
So far, the video looks to have no issues. In the past, i noticed little glitches such as flashing on certain services. It might be fully resolved, but ill have to let time and different channel surfing see if the problem is resolved.
I originally picked 1/2 because i split the signal to 5 separate coax cables, and i know the lower the fec, the lower the db required to gain the signal. But, i also see, it limits the total bandwidth, i am assuming as a trade off for forward error correction. I switched it to 7/8 without issues and my signal is 24dB. Very strong.
If anyone has any thoughts, I'm all EARS.
B
So I'd say that if you're modulating only one channel, then your choice of SR anbd FEC is probably more than enough
I would expect that to work properly, the modulator should have a throughput at least as high as the signal you're feeding it. But the numbers you are showing above, I would guess they are for the entire mux, not for the one channel you are pushing through (unless of course you are remodulating the whole mux). It's very unlikely a channel would have a 41 Mbps bitrate, even broadcast quality feeds are usually below 15 Mbps.Well, after doing some tinkering :
I found this link : Satbroadcasts.com - no. 1 source for professional work
With my DSR6000 DCII Commercial Receiver, i tuned to a channel. We will call it TurboChannel. I got the DCII tuner to spit out the following information :
RS Locked: No VIT Locked: No BER estimate: 0.000000 Modulation Mode: Turbo 8PSK Symbol Rate: 21.50 Msps Code Rate: 2/3 1.92 Spectral Inversion: Normal FEC Phase: 0 Frequency: 1236.000000 MHz SNR estimate: 18.457031 db Carrier Error: -0.822774 MHz Output Bit Rate: 41.200001 Mbps RS uncorrectable errors: 0 Input Power: -46.913193 db
I noticed the BitRate was 41 Mbps. Using the Calculator in the link above, i piped in my Modulator settings of DVBS FEC 1/2 and SR of 30000, and it calculated at bitrate of 28 Mbps. My bitrate falls short of the original source. That sounds potentially problematic. I reset the modulator to DVBS FEC 7/8 which is the highest i can set on the DVBs modulator. I then re-ran the calculation of the new settings and the website calculated a bitrate of 48 Mbps, which is now above the source bitrate.
So far, the video looks to have no issues. In the past, i noticed little glitches such as flashing on certain services. It might be fully resolved, but ill have to let time and different channel surfing see if the problem is resolved.
I originally picked 1/2 because i split the signal to 5 separate coax cables, and i know the lower the fec, the lower the db required to gain the signal. But, i also see, it limits the total bandwidth, i am assuming as a trade off for forward error correction. I switched it to 7/8 without issues and my signal is 24dB. Very strong.
If anyone has any thoughts, I'm all EARS.
So I'd say that if you're modulating only one channel, then your choice of SR anbd FEC is probably more than enough
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Cutting Edge
I created this thread on the original Edgecutter Cutting Edge Forums site. It's simply a place for those to review the latest software available for those using Windows 10 and Windows 11. To date it has received 112,559 views. I have been asked by staff to continue this thread here.
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47179 views
To each there own but I've found that Windows can't do much more than Linux can. Can't have everything.
For niche use cases, yes I agree. Kali for ethical hacking and security testing, and running a Cacti server for network monitoring are the two things I have experience in. Plus thousands and thousands of other things, but for every day use I just can't see it. The owner of the GMRS repeater that I pay to access is changing the Tx DPL tones tomorrow, while Chirp is available on Linux, the software to program my MXT500 is not.To each there own but I've found that Windows can't do much more than Linux can. Can't have everything.
I run Fedora and Ubuntu in VMWare, honestly I don't care much for the UI of either of them and I don't feel like spending days/weeks to customize the UI to make it look Windows-like when I could just use Windows. The cartoonish dock at the bottom of the screen reminds me of Apple products.
As I said above, and, FWIW, I run Win11 Pro and Arch on separate 250 GB NVME drives, using F8 to select which I boot to, with a 1TB SSD for storage, accessible to both OSs and a third formatted Nvme I want to use to learn Kali. It was much faster to setup Arch than it was to strip down Windows. Windows still takes much longer to boot.
For some reason, the satelliteguys.us site is loading a lot slower than usual on both Chrome on my Asus laptop and Safari on my iPhone.
I'm also seeing longer appearances of the blue bar at the top and the "3 blue bars" loading symbol.
Is anyone else also having the same problem? Thanks in advance.
I'm also seeing longer appearances of the blue bar at the top and the "3 blue bars" loading symbol.
Is anyone else also having the same problem? Thanks in advance.
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17906 views
Remember folks... just like DNS... its always Foxbat. 
WTF… …What the Foxbat!Remember folks... just like DNS... its always Foxbat.
S
wow what a kick in the balls!!! the wife blames you when things don't work now scott's blaming youWTF… …What the Foxbat!
I know. Here's what Scott has in store for me if I get out of line:wow what a kick in the balls!!! the wife blames you when things don't work now scott's blaming you
Help, I'm a little confjused on the activation process.
I purchased the Joey 4 from Solid Signal and shipping box has Call 866 726-4282 to Avtivate new Receiver. That number is Solid Signals number.
I googled and that search said call Dish to activate. I assume that is correct unless this requires a 2 step process.
Please let me know.
Thanks
I purchased the Joey 4 from Solid Signal and shipping box has Call 866 726-4282 to Avtivate new Receiver. That number is Solid Signals number.
I googled and that search said call Dish to activate. I assume that is correct unless this requires a 2 step process.
Please let me know.
Thanks
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191 views
All good called Dish and new Joey 4 is activated and working.
Old Joey 2 deactivated and no need to return.
Old Joey 2 deactivated and no need to return.
S
i bought mine straight from dish as it was only $ 100.00 bucks!!! had the protection plan they came out removed and deactivated the 4k joey and activated and installed the joey 4.All good called Dish and new Joey 4 is activated and working.
Old Joey 2 deactivated and no need to return.
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Lifetime Supporter
Apple has finally released their Apple TV 4K with built-in Siri and a microphone so it can respond to your queries even if you don't have the remote. It also increases in price, to $299. I had been planning on updating my current Apple TV 4K streamers, but that's $600 for the two of them, and that's a pass at this point.
At $299, it had better come with 256 GB of Storage, Gigabit (or better) Ethernet, the latest HDMI tech and standards, and one year of free Apple One. But it probably won't…
At $299, it had better come with 256 GB of Storage, Gigabit (or better) Ethernet, the latest HDMI tech and standards, and one year of free Apple One. But it probably won't…
Apple TV 4K
Apple TV 4K. New Siri AI and hands-free control. Stunning picture and immersive HomePod surround sound. Works with your Apple and smart home devices.
www.apple.com
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173 views
S
. apple's been making money off of software and not hardware for a while
they all do that anyways.. ever notice your cell phone slows down when you come up for an upgrade..
. apple's been making money off of software and not hardware for a while
The new curated multiview is now live.
While on many of the sports channels and non sports channels there is a multi view option button. It will pull up a side bar with many different multi view options.
While on many of the sports channels and non sports channels there is a multi view option button. It will pull up a side bar with many different multi view options.
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157 views
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Really excited for this season with Kentucky having a new coach and some really exciting recruits. Probably won't last long, but here's hoping this season is great.
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1347 views
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This thread is a place to discuss the 4K events that appear on channel 540. We are getting, at this point, one college football game a week. Let's hope there is more coming.
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298852 views
Hmmm, I'm not seeing anything like those events in our Hopper 3 guide for tonight or Saturday.
I went into the Tools menu and requested a Guide Update. I'll try looking at it after the update completes.
edit — I now have the 148-01 4KFox events for Saturday, but not anything for 148-02 or 148-03 which don't even show as available channels. I do have 148-04 4KUSA.
As I recall you have the Flex package. Do you sub to multisport? -02 is FS1 and -03 is ESPN. -01 is Fox so you would get that if you sub to locals.Hmmm, I'm not seeing anything like those events in our Hopper 3 guide for tonight or Saturday.
I went into the Tools menu and requested a Guide Update. I'll try looking at it after the update completes.
edit — I now have the 148-01 4KFox events for Saturday, but not anything for 148-02 or 148-03 which don't even show as available channels. I do have 148-04 4KUSA.
TWiT Tech Podcast Network
Time for another AWESOME video from the TWIT Network!
View: https://www.youtube.com/watch?v=87N42NxLPC0
Direct YouTube Link - 8 U.S. States Sue OpenAI Over Safety Concerns With Younger Users
TWIT's Website
TWIT Live Feed
View: https://www.youtube.com/watch?v=87N42NxLPC0
Direct YouTube Link - 8 U.S. States Sue OpenAI Over Safety Concerns With Younger Users
TWIT's Website
TWIT Live Feed
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11 views
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On Tuesday, I recorded the first episodes of the new season's NCIS shows on CBS (Dish provided, not OTA). The new New York series and Origins will both do Auto Skip, but the original, now season 24 does not. What's stranger, when I do a search for NCIS, Origins and New York show the current recording and the next episode it will record, but the original show only shows the current recording and some other channel showing the very first episode of season one. It makes no sense. When I set up the timers, I was able to use search for Origins and New York, but for the original, I had to scroll ahead in the guide until last Tuesday when the show was airing. Then set the timer from there. You can see its timer type is DVR where the other two are Seek. What am I missing?
Thanks!
Thanks!
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390 views
