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DougieLawson
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Re: New TV Tuner from HQ

Sat Oct 20, 2018 8:37 pm

DarkPlatinum wrote:
Sat Oct 20, 2018 8:15 pm

Did you mean you can, or can't get a good signal? Im planning on buying that one for flight tracking and getting a free business account with flightradar24 :)
At the moment you're stuck with using a RTL-SDR USB dongle for ADS-B (1090MHz) because no-one knows whether you can get the DVB-T μHAT to receive anything other than DVB-T and DVB-T2 broadcasts.

You can get an RTL-SDR USB dongle for £8 from Banggood
https://www.banggood.com/USB-2_0-Digita ... 91349.html
The only thing you need to do with that for ADS-B receiving is trim the antenna down to 68mm.
Microprocessor, Raspberry Pi & Arduino Hacker
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Twitter: @DougieLawson

2012-18: 1B*5, 2B*2, B+, A+, Z, ZW, 3Bs*3, 3B+

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Paul Webster
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Re: New TV Tuner from HQ

Sat Oct 20, 2018 9:17 pm

Did you mean you can, or can't get a good signal? Im planning on buying that one for flight tracking and getting a free business account with flightradar24 :)
I use that on a Pi Zero and submit results to Flightradar24 and it works very well.

BaringTech
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Location: Bromley

Re: New TV Tuner from HQ

Sat Oct 20, 2018 10:22 pm

MrWheeliebin wrote:
Sat Oct 20, 2018 12:47 pm
Got mine and set it up on a Pi 2 with Freeview aerial and wire based LAN cable. I can see/hear channels on my Windows box via the AMAZING web app however the video stream stops and starts a lot. Anybody else getting this? I'd think the data stream would be circa 9mbps tops even for HD. Even on my crappy network this should be ok. No picture tearing or noise so I think it really is just bandwidth issues.
Getting the frequent pauses here too using Windows 10 and Chrome to connect. Also noticed high cpu usage on the Pi. However, using VLC media player to connect as described earlier in this thread and all the problems disappear. Just used VLC to watch the F1 qualifying on Channel 4 HD crystal clear with no problems at all.

gordon77
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 7:59 am

DarkPlatinum wrote:
Sat Oct 20, 2018 8:14 pm
gordon77 wrote:
Sat Oct 20, 2018 2:17 pm
DougieLawson wrote:
Fri Oct 19, 2018 5:31 pm
https://thepihut.com/products/flirc-usb ... spberry-pi looks like it's designed for the job (although it costs the same as the DVB TV μHAT).
Looks good. Thanks
Expensive no?
Relative to the price of the hat yes.

Jonovich
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 3:43 pm

rpiMike wrote:
Sat Oct 20, 2018 5:13 pm
In vlc player 'File', 'Open Network', enter URL http://<tvheadendserver>:9981/playlist/channels

This should add all channels to your vlc playlist.
Cool, thanks for that - was having streaming problems via the url directly. Then had no joy with this VLC player option above until I put the PiTV's IP address in, rather than its network name raspberrypitv.local.

Now works a treat on my Pi0w over WiFi to my Windows client and also with the iOS TvhClient application.

Kind regards,

Jon.

DarkPlatinum
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 4:05 pm

DougieLawson wrote:
Sat Oct 20, 2018 8:37 pm
DarkPlatinum wrote:
Sat Oct 20, 2018 8:15 pm

Did you mean you can, or can't get a good signal? Im planning on buying that one for flight tracking and getting a free business account with flightradar24 :)
At the moment you're stuck with using a RTL-SDR USB dongle for ADS-B (1090MHz) because no-one knows whether you can get the DVB-T μHAT to receive anything other than DVB-T and DVB-T2 broadcasts.

You can get an RTL-SDR USB dongle for £8 from Banggood
https://www.banggood.com/USB-2_0-Digita ... 91349.html
The only thing you need to do with that for ADS-B receiving is trim the antenna down to 68mm.
EHH??... Same one on pimoroni but 3 quids more! And no remote.
Last edited by DarkPlatinum on Sun Oct 21, 2018 4:21 pm, edited 1 time in total.
1 * Raspberry Pi Zero W, 1 * Raspberry Pi 2, 1 * Raspberry Pi 3 1 * Raspberry Pi 3B + :mrgreen:

DarkPlatinum
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 4:15 pm

DougieLawson wrote:
Sat Oct 20, 2018 8:37 pm
The only thing you need to do with that for ADS-B receiving is trim the antenna down to 68mm.
May i ask why 68 mm?
1 * Raspberry Pi Zero W, 1 * Raspberry Pi 2, 1 * Raspberry Pi 3 1 * Raspberry Pi 3B + :mrgreen:

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PeterO
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 4:19 pm

68mm is λ/4 at 1.09 Ghz.

PeterO
Discoverer of the PI2 XENON DEATH FLASH!
Interests: C,Python,PIC,Electronics,Ham Radio (G0DZB),Aeromodelling,1960s British Computers.
"The primary requirement (as we've always seen in your examples) is that the code is readable. " Dougie Lawson

DarkPlatinum
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 4:24 pm

PeterO wrote:
Sun Oct 21, 2018 4:19 pm
68mm is λ/4 at 1.09 Ghz.

PeterO
Hmm.. What if i bought the one from pimoroni and adjust the height to 68mm? the antenna is adjustibale BTW.
1 * Raspberry Pi Zero W, 1 * Raspberry Pi 2, 1 * Raspberry Pi 3 1 * Raspberry Pi 3B + :mrgreen:

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DougieLawson
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 4:55 pm

DarkPlatinum wrote:
Sun Oct 21, 2018 4:24 pm
PeterO wrote:
Sun Oct 21, 2018 4:19 pm
68mm is λ/4 at 1.09 Ghz.

PeterO
Hmm.. What if i bought the one from pimoroni and adjust the height to 68mm? the antenna is adjustibale BTW.
The antenna is adjustable (one time only) with a pair of side cutters. I wrapped a piece of masking tape round mine. Drew a line on it at 68mm with a red Sharpie then went for it with a pair of side cutters.

As Peter so succinctly put it because he understands RF very much more than I do. 68mm is a quarter wavelength for 1090Mhz.
Microprocessor, Raspberry Pi & Arduino Hacker
Mainframe database troubleshooter
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Twitter: @DougieLawson

2012-18: 1B*5, 2B*2, B+, A+, Z, ZW, 3Bs*3, 3B+

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PeterO
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 5:08 pm

pimoroni web site wrote: This new dongle comes with an extendable antenna (120-350mm) with a 1 metre cable and MCX connector that plugs into the side of the USB dongle. The antenna works best when its length is a multiple of a quarter of the ADS-B transmission wavelength, which is 69mm. Experiment with different antenna lengths to find the optimum.
To get 1 quarter wave (68mm) you will have to cut it.
2 quarter waves (136mm) is unlikely to work well as it will present a high impedance at the bottom.
3 quarter waves (204) will probably work best.

PeterO
Discoverer of the PI2 XENON DEATH FLASH!
Interests: C,Python,PIC,Electronics,Ham Radio (G0DZB),Aeromodelling,1960s British Computers.
"The primary requirement (as we've always seen in your examples) is that the code is readable. " Dougie Lawson

DarkPlatinum
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 5:16 pm

DougieLawson wrote:
Sun Oct 21, 2018 4:55 pm
The antenna is adjustable (one time only) with a pair of side cutters. I wrapped a piece of masking tape round mine. Drew a line on it at 68mm with a red Sharpie then went for it with a pair of side cutters.
The antenna given by pimoroni looks like its adjustable (not one time) do I just increase the height to 6.8cm? Or do I still have to cut the antenna?
1 * Raspberry Pi Zero W, 1 * Raspberry Pi 2, 1 * Raspberry Pi 3 1 * Raspberry Pi 3B + :mrgreen:

DarkPlatinum
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 5:19 pm

PeterO wrote:
Sun Oct 21, 2018 5:08 pm
pimoroni web site wrote: This new dongle comes with an extendable antenna (120-350mm) with a 1 metre cable and MCX connector that plugs into the side of the USB dongle. The antenna works best when its length is a multiple of a quarter of the ADS-B transmission wavelength, which is 69mm. Experiment with different antenna lengths to find the optimum.
To get 1 quarter wave (68mm) you will have to cut it.
2 quarter waves (136mm) is unlikely to work well as it will present a high impedance at the bottom.
3 quarter waves (204) will probably work best.

PeterO
Thanks! This is what I am looking for. I will probably use 204mm as I might need it for something else. :)
1 * Raspberry Pi Zero W, 1 * Raspberry Pi 2, 1 * Raspberry Pi 3 1 * Raspberry Pi 3B + :mrgreen:

DarkPlatinum
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 7:16 pm

DougieLawson wrote:
Sun Oct 21, 2018 4:55 pm
As Peter so succinctly put it because he understands RF very much more than I do. 68mm is a quarter wavelength for 1090Mhz.
Where did you cut it from, did you measure the antenna length, or from the base of the antenna?
1 * Raspberry Pi Zero W, 1 * Raspberry Pi 2, 1 * Raspberry Pi 3 1 * Raspberry Pi 3B + :mrgreen:

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DougieLawson
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 7:18 pm

Top of the screw threaded piece, bottom of the antenna.
Microprocessor, Raspberry Pi & Arduino Hacker
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DarkPlatinum
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Re: New TV Tuner from HQ

Sun Oct 21, 2018 7:32 pm

DougieLawson wrote:
Sun Oct 21, 2018 7:18 pm
Top of the screw threaded piece, bottom of the antenna.
Thanks. :) Don't want to mess it up when i get one.
1 * Raspberry Pi Zero W, 1 * Raspberry Pi 2, 1 * Raspberry Pi 3 1 * Raspberry Pi 3B + :mrgreen:

gordon77
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 11:47 am

MrWheeliebin wrote:
Sat Oct 20, 2018 6:11 pm
Aha! If I use Kodi as a client and install the TVheadend add-on all is EXCELLENT. Full HD. OMG this is so very cool.
Could you explain how to 'install the TVheadend add-on '?

Thanks

noggin
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 11:47 am

horiz0n wrote:
Sat Oct 20, 2018 8:23 pm
Quick question: is it possible to stream to the local network as multicast? If yes how many channels at a time?
MumuDVB or DVBlast should allow this as the uHAT appears as a regular Linux DVB front-end and adaptor AIUI - and both these apps support both unicast and multicast streaming AIUI.

You'd need to use wired ethernet for multicast I think, but should be able to stream all the channels on a mux IF the uHAT doesn't PID filter to keep SPI bandwidth low?

Can anyone check how many services on PSB3/BBC B (aka the mux that carries BBC One HD, BBC Two HD, ITV HD, C4 HD and C5 HD) they can stream simultaneously from a Pi with a TV uHAT? If it can stream the whole mux to the Pi over SPI then you may find you can stream multiple services - or even all services - over Ethernet (particularly on a 3B+)

noggin
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 11:51 am

mahjongg wrote:
Fri Oct 19, 2018 5:37 pm
Perhaps its possible to use the remote of your HDMI device, (TV) as that is the way Kodi can be controlled with your TV remote.
HDMI has a back-channel through its I2C connection with the PI. It might be possible to use that.
Yes - if your TV supports CEC (aka Bravia Link, Vieira Link etc.) and you run LibreElec (assuming TV uHAT drivers are in LE now) you will find that you can control Kodi running on your Pi via your existing TV remote. CEC allows a TV to send remote commands over the HDMI cable to player devices - and the Pi has very good CEC support (unlike most Windows boxes)

My Pi works fine controlled by my Sony Bravia via this route.

Alternatively you can solder a TSOP IR receiver to the right GPIO pins (I don't think they clash with SPI) and enable the right device tree in config.txt and you can get internal IR support. (You may need to configure for the right brand of control - or learn the IR codes) - but that's a very cheap solution for IR remote control.

If you use a Zero or Zero W in the official foundation case, the camera hole makes a neat hole to mount the TSOP IR receiver in :)

noggin
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 11:56 am

gordon77 wrote:
Tue Oct 23, 2018 11:47 am
MrWheeliebin wrote:
Sat Oct 20, 2018 6:11 pm
Aha! If I use Kodi as a client and install the TVheadend add-on all is EXCELLENT. Full HD. OMG this is so very cool.
Could you explain how to 'install the TVheadend add-on '?

Thanks
If you are running LibreElec :

ADDONS->MY ADDONS
then navigate to "Install from Repository->LibreElec Addons->Services->TV Headend Server" and install it.

I'd probably reboot then.

This will install the TV Headend back-end server which is accessed via a web browser at http://IP_ADDRESS_OF_PI:9981 Where you can then set-up your TV Headend install. There may be a basic config option within Kodi - but I'd always recommend configuration via the browser.

You will separately want to install the TV Headend PVR Client in LibreElec Addones->PVR Clients->TV Headend HTSP Client and install it, if you want to access TV Headend for Live/Recorded TV viewing on your Pi too.

gordon77
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 1:28 pm

I'm using Raspbian but can't find any addons for TVheadend /PVRs in Kodi

noggin
Posts: 50
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 3:03 pm

gordon77 wrote:
Tue Oct 23, 2018 1:28 pm
I'm using Raspbian but can't find any addons for TVheadend /PVRs in Kodi
Ah - if you aren't running LibreElec then you won't be able to install TVHeadend from within Kodi.

You'll need to install it via apt-get or similar if it's in the Raspbian repo - or build it from scratch.

I always recommend running Kodi on a Pi using LibreElec though - as it's such an optimised and well managed environment for Kodi (it can be driven entirely by remote control for instance).

However if you use your Pi for other stuff then I can see why you'd stick with Raspbian.

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rpiMike
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 3:40 pm

gordon77 wrote:
Tue Oct 23, 2018 1:28 pm
I'm using Raspbian but can't find any addons for TVheadend /PVRs in Kodi
DougieLawson described this earlier in the thread:

viewtopic.php?f=35&t=225036#p1381937

gordon77
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 6:45 pm

Cheers, l missed that. :D

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ab1jx
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Re: New TV Tuner from HQ

Tue Oct 23, 2018 8:31 pm

Is there any more technical information available? Does it work outside the UK? Here in the US we have DVB-T, we don't use PAL video (we have NTSC), our standard TV antenna connector is the "F-connector" https://en.wikipedia.org/wiki/F_connector Looks like the chrome connector is an adapter that plugs into the board, we'd probably want a different one. Is that a CRC connector on the board itself? There are a few similar ones, I have something similar on my RTL2832 SDR/DVB dongles, a slightly different (incompatible) one on a Huawei cell modem. I can buy a Chinese TV and it works.

This will be my first "hat", looks like it should fit fine on my Pi with the official touchscreen display, wonder how that will work out. I do have a couple of bluetooth keyboards, one a small handheld one. Wonder if there's a way to make controls appear on the touchscreen while something's on the TV? I don't watch much really except Star Trek reruns. Can't get Dr Who.

Kodi looks like a newer generation of MythTV, used to use that with a Happauge card that plugs into a PCI slot. I took a quick look for a way to make Kodi work with my RTL2832 in DVB mode but didn't see one.

The page at https://www.raspberrypi.org/products/ra ... -now-modal says there are no resellers in my region. Wonder if that's a permanent thing? I was all set to order one too.

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