portsdown 2020 and IQ FM modulator board

Discussion about this major DATV Project. See https://wiki.batc.org.uk/The_Portsdown_Transmitter
Post Reply
CU2ED
Posts: 23
Joined: Thu Jan 17, 2019 11:30 am

portsdown 2020 and IQ FM modulator board

Post by CU2ED » Tue Dec 07, 2021 11:44 am

Hi all,

I have an old Portsdown unit with IQ modulator without any use as I removed the 7" LCD for my Portsdown 4 version, but thanks to this forum I found out a new 5" LCD compatible and very cheap at mouser, the problem is when I use the Portsdown 2020 version I can't see the IQ filter modulator available on the menu, as far I could read on batc wiki, it seems compatible ...

>> The following legacy features have been tested and work well:

>> DVB-S Transmissions using a BATC Filter-modulator board

So, for anyone using this old system, can you confirm that 2019 is the last version for the IQ board ?


73

Jacinto
cu2ed

G8GKQ
Site Admin
Posts: 2810
Joined: Sun Mar 22, 2009 1:21 pm

Re: portsdown 2020 and IQ FM modulator board

Post by G8GKQ » Tue Dec 07, 2021 1:54 pm

Hi Jacinto

Are you sure that you have the Portsdown 2020 software? Maybe you have Portsdown 4 by mistake?

I have just tested the latest Portsdown 2020 software with a Filter Modulator board and it works perfectly. You do need to select "Portsdown" as the "Output to" device.

73

Dave, G8GKQ

CU2ED
Posts: 23
Joined: Thu Jan 17, 2019 11:30 am

Re: portsdown 2020 and IQ FM modulator board

Post by CU2ED » Tue Dec 07, 2021 3:33 pm

Hi Dave,

This old unit has an RPI3B+ and later I instaled the 2019 and I have the "Porstdown" choice ...
I received the LCD yesterday and it was really late when I tried so I also could have done some mistakes, will try one more time when I get home, many thanks for testing and confirming it's working!!!

73
Jacinto, CU2ED

CU2ED
Posts: 23
Joined: Thu Jan 17, 2019 11:30 am

Re: portsdown 2020 and IQ FM modulator board

Post by CU2ED » Thu Dec 09, 2021 9:45 am

Hi Dave,

Yesterday I tested again Portsdown 2020 and as you said there is indeed the Portsdown choice and everything works OK ...

Sorry and thanks again ...

73

Jacinto

Cu2ed

Post Reply

Return to “The Portsdown Digital ATV System”