portsdown 4

Discussion about this major DATV Project. See https://wiki.batc.org.uk/The_Portsdown_Transmitter
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joefran7300
Posts: 29
Joined: Tue May 14, 2024 6:43 am

portsdown 4

Post by joefran7300 » Tue Jul 01, 2025 12:29 pm

Hello To every one.
I have build the portsdown 4 and it is working ok,and i am using the composite to usb converter that i bought from the BATC shop but the picture is not very good as i am connecting my PC HDMI to an HDMI to composite converter and then i an connecting the composite to usb for the portsdown 4.
My quetion is is there any HDMI to USB that can work with the portsdown 4 that i can buy to connected from the PC to USB for the portsdown 4 please.

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g6hfs
Posts: 324
Joined: Thu May 26, 2022 3:13 pm

Re: portsdown 4

Post by g6hfs » Tue Jul 01, 2025 10:14 pm


Pa3fbx
Posts: 230
Joined: Fri Oct 16, 2020 1:08 pm

Re: portsdown 4

Post by Pa3fbx » Wed Jul 02, 2025 10:28 am

If you use PC to generate the picture why not send it over IP and use TS-IP function in stead of the camera option..

Quality will improve fast..

benno

g0mjw
Posts: 2572
Joined: Sat Sep 20, 2014 9:15 am

Re: portsdown 4

Post by g0mjw » Wed Jul 02, 2025 5:11 pm

joefran7300 wrote:
Tue Jul 01, 2025 12:29 pm
Hello To every one.
I have build the portsdown 4 and it is working ok,and i am using the composite to usb converter that i bought from the BATC shop but the picture is not very good as i am connecting my PC HDMI to an HDMI to composite converter and then i an connecting the composite to usb for the portsdown 4.
My quetion is is there any HDMI to USB that can work with the portsdown 4 that i can buy to connected from the PC to USB for the portsdown 4 please.
If you are using a PC it would be far better to encode on that PC and use the IPTS facility as Benno indicated. No need to go via HDMI and potentially the option to use H265 rather than H264. It does require a network connection but most PCs have that and if they don't a USB dongle will do the job.

Mike

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