DigiTwist.

Ideas, technical topics, help and discussion for ATV enthusiasts
Forum rules
This forum is run by the BATC (British Amateur Television Club), it is service made freely available to all interested parties, please do not abuse this privilege.

Thank you
G4EWJ
Posts: 711
Joined: Wed Feb 17, 2010 10:11 am

Re: DigiTwist.

Post by G4EWJ » Sun Dec 03, 2017 11:57 am

Hi Mans,

I haven't published the details as yet. I've sent you an email.

Brian

mans9h1gb

Re: DigiTwist.

Post by mans9h1gb » Sun Dec 03, 2017 1:07 pm

Hi Brian,
Thanks for the reply.
I have received the email and answered .
thanks
73's
Mans. 9H1GB

G0DBH
Posts: 1
Joined: Thu Nov 22, 2018 11:45 am

Re: DigiTwist.

Post by G0DBH » Thu Nov 22, 2018 6:02 pm

Hi,

this thread has been quiet for a while and I was wondering has there been any progress?

I would also be interested to know if the dual Disecq pcb would be useable to drive a couple of VBox units to convert Disecq to 36V and then drive azimuth and elevation jacks.

Best wishes,
Lee G0DBH.

G4EWJ
Posts: 711
Joined: Wed Feb 17, 2010 10:11 am

Re: DigiTwist.

Post by G4EWJ » Fri Nov 23, 2018 10:46 pm

Hi Lee,

To answer your second question, yes I think so in principle, but it may be a lot of work. Am I right in thinking that the VBox doesn't use USALS, so you have to tell the VBox to do so many revolutions of the jack and then you store that number? Is there a linear relationship between turns and dish angle? If not, then it gets very difficult.

I must post a DigiTwist update. It's going to be a long time before we can try it with the ISS again.

Brian

g8lce
Posts: 71
Joined: Sun Dec 06, 2015 10:26 am

Re: DigiTwist.

Post by g8lce » Fri Mar 01, 2019 11:57 pm

Hi Brian,

I was wondering if there is a simple solution to controlling one of these motors. With Oscar 100 now working, it is an easy way of setting up a dish. I use a satellite rx for it but with just a Minitioune RX and a positioner controller it would make it easier for some. You can see my video here https://youtu.be/wv1Srw6F8Bs and part two here https://youtu.be/R8MSILdu2Hk . I may make part three showing the wiring setup using a splitter. It seems simple now but may make it easier for first timers.

Martin G8LCE

G4EWJ
Posts: 711
Joined: Wed Feb 17, 2010 10:11 am

Re: DigiTwist.

Post by G4EWJ » Mon Mar 04, 2019 1:41 am

Hi Martin,

I don't know. Whatever positioning system you set up, you need to receive something to verify that it's set up correctly. It's difficult to precisely align the positioner with local south and for DigiTwist, it's difficult to set an offset dish so that it's beaming vertically.

After setting up, I send it to a few satellites and see if it finds them. If it doesn't, then it's back to making small adjustments to counter the initial misalignment.

Most sat receivers can drive a positioner with USALS, which would be easier than using DigiTwist.

Brian

Post Reply

Return to “General ATV Discussion”