Portsdown 4 - First build now available

Discussion about this major DATV Project. See also https://wiki.batc.org.uk/The_Portsdown_Transmitter
DL5BCA
Posts: 64
Joined: Tue Jun 30, 2020 11:59 am

Re: Portsdown 4 - First build now available

Post by DL5BCA » Tue Aug 04, 2020 12:22 pm

Hi Roland,

as Dave wrote above, the integration of Pluto is experimental at the moment.
not all features work.

73 Thomas DL5BCA
73 Thomas
DL5BCA

G8GKQ
Site Admin
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Joined: Sun Mar 22, 2009 1:21 pm

Re: Portsdown 4 - First build now available

Post by G8GKQ » Tue Aug 04, 2020 6:41 pm

Saro

What USB device are you talking about?

and LimeSDR or Pluto?

Dave

vu3obr
Posts: 2
Joined: Thu Mar 14, 2019 12:10 pm

Re: Portsdown 4 - First build now available

Post by vu3obr » Wed Aug 05, 2020 2:12 am

Hi Dave,

I am using Pluto and Lime USB Both working fine with TestCard Tx, I want use the video from USB pen drive.... In the Video Source i am unable to find my USB drive...How to add the video source from USB Pen drive?

Thanks
73
Saro

G8GKQ
Site Admin
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Re: Portsdown 4 - First build now available

Post by G8GKQ » Wed Aug 05, 2020 10:04 am

Hi Saro

That feature is not included in the Portsdown Software. You could modify the file rpidatv/scripts/a.sh to do it, but there would be no touchscreen support for the feature.

After the next update (202008050, due today or tomorrow), the composite video input (using an EasyCap video capture device) will be enabled for the Pluto. You could then use an external media player.

Dave

g4ouk
Posts: 21
Joined: Fri Jun 27, 2014 1:30 am

Re: Portsdown 4 - First build now available

Post by g4ouk » Wed Aug 05, 2020 3:02 pm

Hi Dave,

Quick question I have a Pie 4 2GB coming tomorrow, will it work with the Custom Firmware for Lime Mini, Lime DVB Output or do I need to go back to the latest Lime Mini Firmware so I can just swap the Lime Mini over.

Thanks :)

Simon

G8GKQ
Site Admin
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Re: Portsdown 4 - First build now available

Post by G8GKQ » Wed Aug 05, 2020 3:11 pm

Hi Simon

It should work with the Custom DVB firmware, just the same as the old version. I think I have tested it....

Dave

G7JTT
Posts: 202
Joined: Fri Jun 10, 2016 5:05 pm

Re: Portsdown 4 - First build now available

Post by G7JTT » Wed Aug 05, 2020 3:27 pm

Yep works a treat was using custom firmware yesterday evening whilst out portable and was good from 4Ms to 333Ks.

73 John G7JTT

g4ouk
Posts: 21
Joined: Fri Jun 27, 2014 1:30 am

Re: Portsdown 4 - First build now available

Post by g4ouk » Wed Aug 05, 2020 4:03 pm

Hi Dave & John,

Brilliant, thanks for the confirmation, happy days :D

Simon G4OUK

g4ouk
Posts: 21
Joined: Fri Jun 27, 2014 1:30 am

Re: Portsdown 4 - First build now available

Post by g4ouk » Thu Aug 06, 2020 11:37 am

Hi Dave,

Have a question regarding the performance improvement of the Pi 4 over the Pi 3B when using H264 Modes. I know the Pi 4 has a much more powerful CPU, faster memory, 4K HDMI output, etc. My Pi 3 struggles when using H264 on anything above 4:3 using the built in Test Card using 1 or 2 M/S or even 4 M/S. Have you had a chance to test the performance improvement using H264 particularly when using 720p and 1080p and at what Symbol Rate?

Thanks

Simon G4OUK

g0mjw
Posts: 1247
Joined: Sat Sep 20, 2014 9:15 am

Re: Portsdown 4 - First build now available

Post by g0mjw » Sat Aug 15, 2020 8:35 am

I am getting a strange error today checking for updates on 202008011 (menu 33) on the Langstone.

"Unable to connect to github for update, Internet connection to google sees OK, please check BATC Wiki FAQ for advice."

Now this would be fine except there is no FAQ section on the Wiki. I know why and what to do but thought I would mention this.

Mike

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