DvbDream Community

Using DVBDream 17b and 17a)
I believe that there is a basic misunderstanding of the GotoX function. GotoX is intended to calculate a pointing angle to a specific satellite given the user latitude and longitude.

Currently the GotoX sends the DiSEqC for the satellite angle and does not correct for latitude and longitude.

I have a positioner here and 3 satellite receivers and a test instrument (Satlook Micro HD) and they all operate the positioner corrrectly using GotoX.

Here are some examples where the GotoX DiSEqC should command due south.

Set longitude to 0 degrees, set positioner to point to 0 degrees
DVBDream command: e0 31 6e d0 00
Satlook Micro HD command: e0 31 6e e0 00

Set longitude to 45E, set positioner to point to 45E
DVBDream command: e0 31 6e e2 d0 <----- (the last three nibbles should be 0, instead it says move 45 degrees !!!)
Satlook Micro HD command: e0 31 6e e0 00

Set longitude to 45W, set positioner to point to 45W
DVBDream command: e0 31 6e 02 d0 <----- (the last three nibbles should be 0 !!!)
Satlook Micro HD command: e0 31 6e e0 00


Here is an example using my latitude and longitude and setting GotoX for 13E Hotbird.
Latitude=53.2N
Longitude=6.1W
Set GotoX for 13E
DVBDream Command: eo 31 6e e0 d0 <--- this is move to 13 degrees from due south
Satlook Micro HD Command: e0 31 6e e1 4d <--- this is move to 20.8 degrees from due south which is the correct pointing angle for Hotbird at my Latitude and Longitude.

I have C Source for the correct calculation of the DiSEqC command and would be happy to provide this and discuss this in more detail if required.

Charles Putney

I thought that I had responded to a PM about this long ago, but it seems that I cannot send any PMs. I tested version DVBDream17c using my positioner and the new Goto Orbital Position function and it works fine.

Charles Putney