Knucker beta testing feedback

Discussion about the Knucker DVB-T Tuner DVB-T Receive Software. See also https://wiki.batc.org.uk/Knucker
g8gtz
Posts: 1368
Joined: Wed Apr 07, 2010 6:26 pm

Knucker beta testing feedback

Post by g8gtz » Mon Jan 11, 2021 3:42 pm

Comments from beta testers here please

g8vpg
Posts: 355
Joined: Fri Oct 11, 2013 9:35 am

Re: Knucker beta testing feedback

Post by g8vpg » Wed Jan 13, 2021 11:57 am

Whilst waiting for the parts to make the Knucker receiver to arrive, I thought I would download the new DATV Express software and see how it looks on a spectrum analyser. I have managed to download a huge list of files, none of which look like a setup exe. Could someone please explain how to install the new version please? I have previous versions loaded, so I just need to do an update I assume?
73 Shaun.

g8gtz
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Joined: Wed Apr 07, 2010 6:26 pm

Re: Knucker beta testing feedback

Post by g8gtz » Wed Jan 13, 2021 12:58 pm

Hi Shaun,

The link I sent you downloads a single zip which when extracted has just 2 files, setup.exe and notes.txt which when run installs DATVexpress as normal.

Sounds like you have something else? I'll email you the link again.

Noel

g8vpg
Posts: 355
Joined: Fri Oct 11, 2013 9:35 am

Re: Knucker beta testing feedback

Post by g8vpg » Wed Jan 13, 2021 2:45 pm

Thanks Noel,
It was down to me for being so unfamiliar with Dropbox that I ignored the little download box on the righthand side and downloaded the files that made up the webpage. I wondered why there was an html file in downloads!
73 Shaun.

G4FKK
Posts: 78
Joined: Sun May 05, 2019 12:15 pm

Re: Knucker beta testing feedback

Post by G4FKK » Wed Jan 13, 2021 6:13 pm

Evening all - quick question; can the FT2232H module be programmed off the Knucker PCB?

73, Martin

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G1LPS Terry
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Joined: Mon Mar 10, 2008 10:33 pm

Re: Knucker beta testing feedback

Post by G1LPS Terry » Wed Jan 13, 2021 7:19 pm

I just tried off the pcb and couldn't
ok on the pcb not powered

br
Terry

G8GKQ
Site Admin
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Re: Knucker beta testing feedback

Post by G8GKQ » Wed Jan 13, 2021 7:55 pm

Hi Martin

As Terry says, the USB module needs to be on a PCB for programming - Knucker or MiniTiouner PCBs will both work. No power to the PCB is required - the module just needs the pin interconnections provided by the PCB.

Dave

G4FKK
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Joined: Sun May 05, 2019 12:15 pm

Re: Knucker beta testing feedback

Post by G4FKK » Thu Jan 14, 2021 7:50 am

Thanks Terry and Dave,

All the gubbins has arrived so hoping to have the Knucker working later this morning.

73, Martin.

G4FKK
Posts: 78
Joined: Sun May 05, 2019 12:15 pm

Re: Knucker beta testing feedback

Post by G4FKK » Thu Jan 14, 2021 10:40 am

Ok, Knucker built and appears to be working. The next thing I need is a reliable method of generating DVB-T. I've got the latest DATVExpress (v.17), which refuses to generate 333kHz on the Pluto. It will generate 500kHz and 1000, but the displayed result locks up every few seconds. I've not tried any "Video Bitrate Twiddling" yet or had a look at the Pluto's output on the spectrum analyser either. I think the Pluto is something Charles is working on so not going to panic just yet :)

Let me know if anyone is likely to be testing DVB-T on QO100 any time and I'll have another go.

Test Setup:
DATV-Express 1.25lp17
Video Source C920
Pluto with Evariste 2711 loaded
Latest Portsdown4 with DVB-T/T2
Knucker
Express_set1.jpg
Express_set1.jpg (32.29 KiB) Viewed 477 times
Express_set2.jpg
Express_set2.jpg (29.65 KiB) Viewed 477 times
Express_set3.jpg
Express_set3.jpg (26.8 KiB) Viewed 477 times
73, Martin

G8GKQ
Site Admin
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Re: Knucker beta testing feedback

Post by G8GKQ » Thu Jan 14, 2021 10:49 am

Hi Martin

For use with the C920, try setting H264 encoding, use “864 480 24 YUY2” and mono (MPA) audio encoding.

Charles has passed me the code for DVB-T transmission from the Portsdown. I have it running here using a Pluto, but it needs some changes to the Portsdown before I can release it. Only a few days at the most.

The Portsdown should eventually also work with Lime and DATV Express cards, but that's a lot of integration and testing, so I'm trying to get the Pluto performance to be rock solid first.

Dave

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