AMSAT Deutschland e.V. Forum

I have been observing a series of squiggles on the NB transponder. What would be the cause?

Sorry Remco, I cound not resist this wordgame in the subject

So Folks, here's a new (?) idea for injecting an external TCXO, which I successfully tested.

Just leave the x-tal where it ist, disconnect the LO out pin of the PLL-Chip, and inject the…

(Quote from DB8TF)

Hi Flo DB8TF, I agree with you !!! not all are high enough to be able to modify LNB, while some OMs have not made any changes to the DATV system only SSB band system for frequency centering
73 Tony IK1HGI

(Quote from DB8TF)

Hi Flo DB8TF, I agree with you !!! not all are high enough to be able to modify LNB, while some OMs have not made any changes to the DATV system only SSB band system for frequency centering
73 Tony IK1HGI

(Quote from DL9SEC)

Das hast du aber gut hingekriegt! Sobald der Transverter eingetrudelt ist werde auch ich den POTY an den LNB montieren.

Hier der PLA-Prototyp meiner POTY-Haube. Wird in den nächsten Tagen in weißem ABS gedruckt und der Patch dann damit abgeglichen...

Hi
It works. The signal was around 2dB below the POTY at my 1.2m prime focus .

Best regards
Alex

Today finished routing PCB. Attached pictures of 3D model and schematic diags of this part. Little diffrences between PCB filter parts sign and schematic, possibility to set LPF insteed HPF.

G0MJW

The translation is a bit misleading and not, what I intended to say.
The patch will be tuned with/for the ABS cover (currently printing)...

(Quote from DL9SEC)

Very nice. When you get time I have some Lilies to Guild.