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DrP
Posted on: Mar 25 2018, 10:37 PM


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I'm not aware of any countrywide transmission changes by them. There has been a change in the satellite distribution of both into regional Australia - Optus has changed the transponder from DVB-S to DVB-S2X - but that won't make any difference to the terrestrial transmission.

Do the signal stats reported by your TV and STB differ significantly between SBS/ABC and the commercial broadcasters?
  Forum: Other Digital TV Cards · Post Preview: #83542 · Replies: 1 · Views: 670

DrP
Posted on: Feb 11 2018, 08:14 AM


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A little more info on the elcheapo ebay tuners if anyone else is considering going down that path. I mentioned above that they aren't as good as the tinyusb2 when it comes to impulse noise. Even when connected to my roof antenna which, according to the test meter has excellent reception stats, the ebay tuners could still occasionally produce bursts of broken/missing transport packets.

Muppet Labs testing by causing some local arcing near the tuners readily produced errors. It turns out these things have absolutely no shielding at all, not even provision for a tin can that has been left out to lower costs. A layer of alfoil enclosing the tuners and making contact with the coax shield was the answer. They still can't produce the 100% clean transport streams that the tinyusb2 does when connected to an antenna sitting on a box in the workshop, but from the roof antenna they are now squeaky clean.
  Forum: DNTV · Post Preview: #83540 · Replies: 11 · Views: 1,012

DrP
Posted on: Feb 1 2018, 05:20 AM


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One thing I have noticed is that the driver for the tinyusb doesn't seem to flush the device's buffer which can result in old / unrelated transport packets appearing at the start of a recording. For most purposes this doesn't cause a problem but things like projectx will get upset and complain about being unable to sync the audio and video whilst videoredo will take a while to scan the file and work out what is going on.

tvheadend has a solution, just set Skip Initial Bytes in the configuration > dvb inputs > tv adaptors page. I set it to 15000, but that's probably massively excessive and equates to about 80 transport packets.
  Forum: DNTV · Post Preview: #83538 · Replies: 11 · Views: 1,012

DrP
Posted on: Jan 27 2018, 09:00 PM


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Might have to revise that slightly. The tinyusb2s do work but time has taken its toll. At a guess I'd say it may be failing capacitors. They still have really good noise immunity, better than the ebay realteks, but when cold they all report low signal level (37%-ish) which is hardly surprising given the antenna is sitting on a box, but after they heat up the signal level starts bobbing around but has an overall upward trend reaching around 76%.

Still not bad considering their age.
  Forum: DNTV · Post Preview: #83537 · Replies: 11 · Views: 1,012

DrP
Posted on: Jan 25 2018, 09:48 AM


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QUOTE (DrP @ Jan 17 2018, 04:47 AM) *
The tinyusb2 drivers were always a bit quirky under 64 bit windows causing BSODs under various conditions and 64 bit linux support seems to have long died (firmware loads but nothing useful from the dvr device etc).


... and just one more thing laugh.gif

kernel 4.14.x seems to have bought my ancient old tinyusb2 receivers back to life. I bought 4 of them (as 2 x tinyusb2) back in 2006 and the hardware still works. Not bad value there.
  Forum: DNTV · Post Preview: #83535 · Replies: 11 · Views: 1,012

DrP
Posted on: Jan 22 2018, 08:05 AM


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... and one last thing. I noticed random transport packet problems after I connected my RPi 2B system to my roof antenna that produces 100% clean on a Windows machine and tracked it down to a problem with kernel 4.9 that causes with USB on the RPi where random USB packets just go missing.

https://github.com/raspberrypi/linux/issues/2134

raspbian is moving to kernel 4.14.x but it's possible to install the non-stable version they are testing with by running

sudo BRANCH=next rpi-update

So far 4.14 is producing clean transport streams again.
  Forum: DNTV · Post Preview: #83534 · Replies: 11 · Views: 1,012

DrP
Posted on: Jan 19 2018, 03:14 PM


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A 7zip archive of the scripts and sample database can be found at http://billy.is-lost.org:50080/stuff/. Put your peril sensitive sunglasses on before looking at the perl scripts, otherwise the sheer dodginess of it all will make you go blind. The script is meant to run on linux and windows using either sqlite or the Windows registry as a data store, but I've chopped a lot of that out for the RPi version but parts of that flexibility remain so if you see something windows related it can be ignored.

The important stuff in the scripts etc are:
fvjson.pl - use constant state => 'Mackay'; < replace with your location as pulled out freeview.com.au's tvguide.
fta.pl - the IP address for the tvheadend server and username / password
dbUtils.pm - defines the script location as /dvbcap so create and place the contents of the 7zip file in there, or adjust our $dvbcap = join ($sep,$start,'dvbcap',''); to suit

sys.db:
ftaprograms - a list of programs the script has seen appear in the epg so it can produce a list of new titles into the temp directory
ftamovies - same as above for movies
ftanoaccess - list of channels to not be checked for events to record
movies - list of movies to look for and record
shows - same as above but to regular programs (maps shows to sonarr names to avoid grabbing things that sonarr already has)
tvhechannels - maps freeview.com.au channels to tvheadend services
padding - padding times start~finish in minutes

It's important to remember that absolutely none of the above is needed to use tvheadend to record programming automatically. It is very capable of that all by itself. All of the above is just to exercise it. tvheadend can use an externally generated xmltv file given that the broadcast EPG probably doesn't include episode titles etc. I have placed a basic xmltv generator on the download area too.
  Forum: DNTV · Post Preview: #83533 · Replies: 11 · Views: 1,012

DrP
Posted on: Jan 19 2018, 06:16 AM


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QUOTE (frednerk33 @ Jan 18 2018, 04:42 PM) *
My goodness. I have a Pi v3. Would it be possible for you to share the step-by-step instructions and source (and which tuners) ? I'm guessing that USB bandwidth is a limiting factor in recordings etc.


I bought the tuners a while ago now so the exact ebay listing is long gone but something similar can be turned up searching for 'USB DVB-T +RTL-SDR Realtek RTL2832U + R820T DVB-T Tuner Receiver PAL IEC'. It's fairly easy to set up really. The RTL2823U and most of the demodulator chips (the R820T for mine) are already supported in the linux kernel, so it's just a case of plug them in and they are ready to go.

tvheadend is where the effort is needed. I run raspbian stretch on my PI and it turns out the repository for tvheadend was broken. I eventually found a post on the tvheadend.org forum stating that the entry below in the apt sources let it install.

As root create /etc/apt/sources.list.d/tvheadend.list and put

deb https://dl.bintray.com/mpmc/deb raspbianstretch stable-4.2

in it then do apt update and apt install tvheadend -y, then start it with /etc/init.d/tvheadend start

Then open a web browser and point it at the PI on port 9981 - say http://192.168.1.4:9981

tvheadend has a lot of pre-made configurations for Australian frequencies built in but I found the frequencies for my area were still pre-restack so I did it all manually. This meant I had to go to the Configuration > DVB Inputs > Networks tab and create a network; then Muxes tab and define each mux by entering the centre frequency and bandwidth (left the rest to auto), then went back to the TV Adaptors tab and enabled each receiver attaching the Network I created to it. tvheadend then went out on its own and scanned each mux to detect what services were available.

It can automatically pull the EPG, update muxes and all sorts of tricks but I turned all that off because of what I am doing with it all. There's an awful lot of things that can be tweaked in tvheadend, it can monitor now & next to ensure it always gets the full program, if that data is reliable enough to use etc. You can specify per service (7mate, 7flix, ABC etc) padding times too.

I'm not much chop at instructions, so if you decide to give it a go and get stuck, fire a few questions off in the forum and I'll take a look at exactly what I did and let you know the nitty gritty of it.

USB bandwidth isn't a problem. The USB2 interface on the PI is good for 480Mbit/sec in theory and so far I've had all three tuners running with various numbers of programs being recorded to a USB hard disk, along with sonarr and nzbget doing their things without dropped transport packets that couldn't be attributed to the fact that I'm running the tuners of an antenna sitting on a cardboard box.

*edit*
The script I use to feed events to tvheadend is pretty bare and not something for the regular man off the street to use. It uses sqlite for storage. The database holds tables mapping EPG channels to tvheadend services, a list of what shows to look for, a set of padding times for each channel, the list of scheduled recordings and finally a list of what episodes it has recorded for what shows so it doesn't repeat record. A scheduler script scans the list and calls a recording script that actually sends commands to tvheadend. A separate epg collector script pulls data off a web site and builds the list of scheduled recordings.

It is the latest evolution of a long line of scripts starting in the 90s when I used to record analogue FTA. It can support pay TV recording too, via another set of scripts which run the pay TV box via an ir blaster and EPG collection scripts which gather the Foxtel EPG.
  Forum: DNTV · Post Preview: #83532 · Replies: 11 · Views: 1,012

DrP
Posted on: Jan 17 2018, 04:47 AM


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QUOTE (therat @ Jan 16 2018, 10:36 PM) *
i still use a DABBY and a TinyTwin v3 with DNTV and Scheduler Pro every day for all my TV recording and listening to DAB audio and FM Radio. Great combination and very reliable.

combined with the free Plex Media Server we are able to watch all my recorded and downloaded video via our T-Box, Android TVs and smartphones and tablets right through our house.

... and we're back.


What DNTV devices or software do I use?

Neither, but that is more due to the fact that I don't listen to the radio and my FTA viewing is almost non-existent more than any particular failing of DNTV devices and/or software. My DNTV tuners are all pretty long in the tooth (tinytusb2 and tinytwin v2). The tinyusb2 drivers were always a bit quirky under 64 bit windows causing BSODs under various conditions and 64 bit linux support seems to have long died (firmware loads but nothing useful from the dvr device etc), The tinytwin is an afatech based device, so it has always been difficult which is hardly surprising given afatech's chequered past. I've always preferred TVSP over the DNTV offshoot due to TVSP's better handling of recordings should the program stream being targetted go missing. Last time I checked TVSP would fall back to grabbing the full transport stream while DNTV would not record anything. Even TVSP might get bumped off for DV Scheduler because, IMO, it has a better underlying design.

Currently, more for the sake of proving being able to do it than watching, I have 3 ebay $10 usb tuners connected to a raspberry pi with tvheadend being fed tasks by my own scheduler script with an eclectic set of titles to exercise it.
  Forum: DNTV · Post Preview: #83530 · Replies: 11 · Views: 1,012

DrP
Posted on: Jul 30 2017, 07:12 AM


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If anyone is still reading dvbowners...

With the removal of the freeview MHEG program guide from the broadcasts I've setup a homebrew XMLTV generator on my RPI to provide data for a friend. It's very much a test thing, it may eat your homework, it may elope with your daughter, it could even cause the breakup of the EU. I you'd like to give it a go, please post here. The XML will be updated once a day (the underlying data I'm using as a source is updated every two hours, but I don't want to hammer it). All I'll need is your town + state so I know what broadcasts are in your area. If the script turns out to be workable I'll publish it here so people can run it themselves to produce the XML locally.
  Forum: Electronic Program Guide (EPG) · Post Preview: #83513 · Replies: 122 · Views: 62,031

DrP
Posted on: May 26 2017, 04:39 AM


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Wel, to be brutally honest, unless the content is uniquely only available via what ever service you are using via the ATV you may find there are better ways to do the PVR thing rather than going to the trouble of manually playing, recording, editing, encoding etc.

Assuming you are using a pay for access service on the ATV, keep the subscription going if it makes you feel better about piracy (the content providers would consider recording their content piracy in most instances), but also setup a usenet (news) download system and let it do all the heavy lifting for you.

I have a 12/7 (12pm - 12pm our time) extremeusenet.nl account for $2.80 / month and 12 month access to nzbplanet.net for $1/month. On top of that I use nzbget and sonarr on my raspberry Pi. They have a list of shows I'm interested in after that I would previously have recorded like you are trying to do from Austar (now Foxtel) and fetch new episodes as they become available automatically. The software is also available for Windows (x86) machines. My Foxtel box now sits largely unused.

extremeusenet and nzbplanet both have trial periods so you can test the water before deciding to dive in.
  Forum: DNTV · Post Preview: #83511 · Replies: 6 · Views: 2,118

DrP
Posted on: May 25 2017, 08:35 PM


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QUOTE (therat @ May 24 2017, 08:56 PM) *
Any suggestions on a reliable screen capture program? VLC is the only one I can find that might work. Still have to try it first.


I've grabbed SD analogue via a DV bridge for many moons and largely side stepped all the problems with video capture and Windows as a result. In the late 90s I did have a Matrox card and went through many programs trying to find decent software but never really did. I guess it comes down to what you are trying to do, ie why capture the ATV's output.

www.videohelp.com has a list of capture programs that may do a good job of screen capture. From what I can tell though, the HDMI in is not accessible from the PC. All it does is let you use the display as a monitor / speakers.


If archive / recode is the game virtualdub (or one of the derivatives) is probably still worth looking at for a captre device.

Perhaps a so called 'dvb-t modulator' might be the way to go. HDMI in, RF out suitable for stream dumping via a USB dvb-t receiver like any other broadcast. There's a whole slew of HDMI standalone capture boxes too that write to USB fllash / HDD / etc.

ebay, search 'dvb-t modulator' as well as 'hdmi capture' returns a range of devices / prices. Picture Quality unknown though.
  Forum: DNTV · Post Preview: #83509 · Replies: 6 · Views: 2,118

DrP
Posted on: May 24 2017, 09:32 AM


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Not directly answering your question, but a few things to consider...

Is it really an 'in' port, ie it's a capture card, or is it a port that allows you to display an external HDMI source on the computer's monitor. Several all-in-one style computers have this option but you can't capture with it, nor do anything else with either.

The next stumbling point would be HDCP. Apple TV players support HDCP on the output. I'm not sure if its forced on for all content, or just content that specifically requests it. Pretty much all capture devices do not support HDCP so you may find that, even if the port is a capture port, you will need additional hardware to strip the HDCP. Such items are fairly readily available - ebay search for a HDMI splitter box and then Google search to see if it is also a HDCP stripper.

Now for the actual question...

If it is a capture port and presents itself as if it were an analogue capture card, I can't see why DNTV's analogue capture support wouldn't work, if you have all the requisite MPEG2 encoders etc installed. Crank up virtualdub in capture mode and see if it can connect to the HDMI capture device and display a picture. If it can there's, IMO, a pretty good chance DNTV will work too.
  Forum: DNTV · Post Preview: #83507 · Replies: 6 · Views: 2,118

DrP
Posted on: Jan 2 2017, 08:46 PM


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I'm pretty sure that so long as you have a DNTV device of some description in your PC you can then use any additional DVB device you care to mention with DNTV scheduler. I'm also pretty sure there is an optional licence to allow DNTV scheduler to work with any DVB device even if there isn't a DNTV device installed.

I don't think this should be a limitation for you as TV Scheduler Pro and DV Scheduler are both free to use. DV Scheduler has extensive EPG collection abilities integrated and many EPG configuration options which is really. IMO, all DNTV Scheduler has over TV Scheduler Pro.
  Forum: DNTV · Post Preview: #83495 · Replies: 4 · Views: 1,523

DrP
Posted on: Dec 31 2016, 10:03 AM


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I have a battle worn Hauppauge WinTV based on the 7164. The RF input socket was broken a long time ago so I soldered on a pigtail with a 'PAL' plug (not a socket). All the usual caveats apply for a 7164 based device - can be picky as to which PCIe slot it works properly in. Some slots it just won't appear and others it will work but can be flakey. Once a slot the card is happy with can be found it'll work reliably. The Hauppauge also has analogue in but very little software ever took advantage of the onboard mpeg/2 encoders and they were pretty crap anyway.

Let me know if you are interested.

As an alternative, have you thought about some cheap ebay tuners? I bought a batch to play with SDR a while back and they work fine for DVB-t too when given a signal level they are happy with. Windows 10's driver update must be disabled or it'll install an incompatible driver.

http://www.ebay.com.au/itm/Lastest-USB-DVB...C-/141519578920
  Forum: DNTV · Post Preview: #83492 · Replies: 4 · Views: 1,523

DrP
Posted on: Dec 31 2016, 09:58 AM


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The Windows 7 drivers should work OK. I've used, and still am using, the 2004 (ie XP era!) drivers for the tinyusb (twinhan beetle) on Windows 10 with a fair degree of success. The driver does occasionally puke when coming out of hibernate if the tuners have had power removed from them, possibly it doesn't properly account for having to do a full cold restart of the device.
  Forum: Other Digital TV Cards · Post Preview: #83491 · Replies: 7 · Views: 8,687

DrP
Posted on: Dec 11 2016, 07:22 PM


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I've noticed the URL is returning an error again whilst poking around EPG data from certain web sites.

If anyone is interested in a roll your own guide it's fairly easy to pull the data from the freeview web site now that they've rejigged it (yet again). Basically you can can pull an XML file (not in xmltv format) for each channel in a given area building the file name by combining the DVB network ID, transport stream ID and program (channel) ID. This information cab be readily harvested from say a DVB channel scan with a PC or by viewing the freeview website epg pages with the web browsers debug console open. The xml file includes program times, titles, episode titles, brief summary, series and episode numbers and crid information too and is fairly easy to sift and generate a very useful xmltv file from. I've done up a hack script for my own use but if you ask nicely CALVI might write up something more user friendly for people to download and run on their own PCs directly.

Heck, if it comes to it I could probably do up a script to run daily on my raspberry pi and upload the xmltv file to somewhere for people to download.

CODE
101309200938
NID TSIDPID


http://www.freeview.com.au/XML/new_XML/101309200938 = RACING.COM guide data for Mackay QLD

A HTTP head get can be done against the files to see if they have changed since the last fetch to lessen the load on their server.

snippet of xml returned from the site

CODE
<?xml version="1.0" encoding="UTF-8" ?>
    <listings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="Freeview-HWW.xsd" creation_time="2016-12-11T19:04:13">
        <service service_name="9Gem" network_name="SCA" default_authority="crid://mackay.2.sca.au" service_group="SCA" hww_id="406568" affiliate_id="GEM" service_type="TV">
            <schedule>
                <programme genre="Comedy" subgenre=""  classification="(PG)" program_type="series">
                    <title>Are You Being Served?</title>
                    <synopsis>Ordered to cooperate in the store&apos;s German themed week, the Grace Brothers&apos; staff try to find a way to get into the Teutonic spirit.</synopsis>
                    <program_id>159723</program_id>
                    <event_id>82200355</event_id>
                    <crid crid_type="programme" crid_value="/15888D3_5"></crid>
                    <date_time_duration date_time_value="2016-12-10T14:05:00Z" duration="00:45"></date_time_duration>
                    <series episode_number="6" season_number="3">
                        <title>Are You Being Served?</title>
                        <episode_title>German Week</episode_title>
                        <synopsis></synopsis>
                        <crid crid_type="series" crid_value="/15888"></crid>
                    </series>
                    <media>
                        <filename>420321_9gem_16x9.png</filename>
                    </media>
                    <highlight dont_miss="false" coming_up="false" catch_up="false" />
                    <blackout></blackout>
                    <catch_up>
                        <link type="HbbTV"></link>
                    </catch_up>
                    <cast>Mollie Sugden, John Inman, Frank Thornton</cast>
                </programme>
  Forum: Electronic Program Guide (EPG) · Post Preview: #83481 · Replies: 122 · Views: 62,031

DrP
Posted on: Nov 25 2016, 09:01 AM


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Maybe a U4 Quad will do it all. There's a thread on Austech about it.
  Forum: DNTV · Post Preview: #83479 · Replies: 2 · Views: 2,081

DrP
Posted on: Nov 21 2016, 04:50 PM


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If you look at the menu bar in device manager, click View, then Devices by Connection and that will reorder the tree so you can see the way devices are related.
  Forum: DNTV · Post Preview: #83475 · Replies: 4 · Views: 1,991

DrP
Posted on: Nov 20 2016, 07:08 AM


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Make sure the tuner is connected to a USB2 controller rather than a USB3 one. This doesn't mean a USB2 port off a USB3 controller either, it must be an actual USB2 controller. Many of the drivers for USB tuners have problems with the new USB3 driver stack that is in Windows 10 causing problems like you are experiencing and even causing Windows to BSOD. If you have no choice but to use a USB3 controller, and you have an Intel USB3 controller, it is possible to hack Intel's Windows 7 driver installation files to allow them to be installed on Windows 10, but IMO this is a poor choice and also require Windows 10's driver updates to be turned off.

It may also be that Windows 10 has done its thing and installed an incorrect driver for the tuner behind your back. Turn Windows 10's driver updates off (see here) then re-install the Tinytwin's drivers and verify that the correct version is shown in the tuner's properties via device manager.
  Forum: DNTV · Post Preview: #83473 · Replies: 4 · Views: 1,991

DrP
Posted on: Nov 13 2016, 05:46 PM


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I did have a quad (one of the pre-release eval cards) working fine under Windows 10 (original release) some time ago until I accidentally killed the card.

All things considered, apart from Windows 10's recent habit of replacing drivers as per previous post which may not even be a problem with the quad if Renura has submitted the driver and dev ids to Microsoft, I can't see why there would be any problems. Even my very old (2007 or earlier) tiny USB (twinhan beetles) still work using drivers that came out before Windows 7 existed provided they are connected to USB2 controllers. Since the quad has the USB2 interface built in even this won't be an issue.

I think the only show-stopper with Windows 10 and old drivers, is unsigned drivers (the quad's are signed) can no longer be loaded in clean installs of Windows 10 aniversay edition, if the PC is configured for UEFI secure boot.
  Forum: DNTV · Post Preview: #83471 · Replies: 15 · Views: 4,146

DrP
Posted on: Nov 1 2016, 09:52 AM


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I don't know about this tuner specifically but with the was USB device IDs work Windows 10 will often try to install what it thinks is the right driver during a Windows update often causing things to fail. There are various ways to prevent Windows 10 from doing this but a nice easy way is to use regedit and manually turn the feature off.

Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\DriverSearching. Create a value SearchOrderConfig (dword) and set it or update if already existing to 0.

Then you can install the DNTV driver and Windows won't try to change it later
  Forum: DNTV · Post Preview: #83459 · Replies: 15 · Views: 4,146

DrP
Posted on: Aug 8 2016, 05:15 AM


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The cards will continue to receive 7's and 9's broadcast without problems, the software is what is letting you down. Fortunately there are alternatives out there, and free at that. Take a look at SichboPVR and ProgDVB to name just two.
  Forum: Other Digital TV Cards · Post Preview: #83440 · Replies: 2 · Views: 3,683

DrP
Posted on: Jun 1 2016, 05:27 PM


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Not an avermedia I know, but I've recently bought 5 realtek RTL2832 based tuners off ebay for a SDR project for $11 a pop, delivered. They work fine for DVB-t too. Under Windows 10 I had to disable Windows 10's driver update as it was installing some junk from 2009, but that aside they all work well. As a bonus they have built in support in most linux distributions too. Although I haven't tested it, they probably require to be run on USB2 ports (not just a usb2 hub) to avoid USB related driver problems under Windows 8 and 10.

As with most tuners signal level is important. Too little, dropouts. Too much, dropouts too. Under linux tzap let me monitor the devices reported signal quality level while I tweaked the signal level reaching them to get the optimal results.
  Forum: Other Digital TV Cards · Post Preview: #83426 · Replies: 7 · Views: 8,687

DrP
Posted on: Dec 24 2015, 04:54 PM


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Cheers!

Don't forget to watch WIN's special presentation of Silent Night, commencing Jan 1st 2016.
  Forum: DNTV · Post Preview: #83398 · Replies: 2 · Views: 2,968

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