Portsdown 4 Icom 905

[VK3BKQ]

Is it possible to output from Portsdown to composite input on Icom 905 ?

[g6hfs]

Yes, you need this, perhaps you can buy from supplier there.

You need to set video out on pi, also disconnect lcd screen.

https://thepihut.com/products/a-v-and-r ... v1qTMrud3A

Brian

[VK3BKQ]

Thanks Brian, I was hoping I could leave touch screen
connected.

[g6hfs]

Hi,

I think portsdown 5 (the next gen) you will be able to, for time being you will have to use k/brd and mouse.

Brian

[radiogareth]

This gives you a variety of options (test cards, pictures, PiCamera...)
https://wiki.batc.org.uk/BATC_Video_Source
Cheap to build.....
Gareth

[G8GKQ]

Let's clear up any confusion in the answer to this question.

• The Portsdown 4 does not support composite video output (as needed to input to an IC-905). It may be possible to make it do it, but I reserve the right to inadvertently (not intentionally) disable any work-arounds during future updates. It is just not something that I test.
• The Portsdown 2020 does support composite video output and will continue to do so.
• The best solution (as Gareth says) is to use the BATC Video Source https://wiki.batc.org.uk/BATC_Video_Source which is designed for the job and uses a Raspberry Pi Zero.
• The Portsdown 5 will be not support composite video output. It will support HDMI video output.

I used a BATC Video source for the review tests of the IC-905 with good results. Note that there is also a BATC HDMI source with similar capabilities, but for HDMI https://wiki.batc.org.uk/BATC_HDMI_Source

Future projects will all use digital video in some form (HDMI, SRT, SDI etc). The IC-905 is using modes that were more appropriate 20 years ago.

Dave, G8GKQ

[g6hfs]

Apologies for my misunderstanding

Brian

[VK3IE]

Highs recommend the https://wiki.batc.org.uk/BATC_Video_Source
Easy Compact and a built in Camera and test cards easy.


Cheers
Rob
Vk3IE