PreAmp Option seems not work ?

#11 · 20/01/2022, 11:14

Quote from AdminTC on 20/01/2022, 10:34

ALL: The complete layout screenshot

This is full screen screenshot and same result

I think the result is same
but please say your idea

#12 · 20/01/2022, 11:51

Yes looks like a blown preamp.

#13 · 20/01/2022, 11:59

why you think so ?

I never connect anything to this spectrum except an omni antenna

And it was a new spectrum, I think I only use it at max 15 times !

but ...

anyway please let me know what should I do for solve it

#14 · 20/01/2022, 14:23

Please contact our sales for a repair quote.

David3542 has reacted to this post.

#15 · 20/01/2022, 16:43

Admin
could you please share 4 photos (same as me) for understanding better about Amp and PreAmp effect , ( Per as my photo , even AMP effect was not so clear !)
(per as datasheet PreAmp gain should be 20db , but how much is Amp gain? in my photo its not clear for me )

so if its possible please share some photo for us , Thanks in advance

#16 · 20/01/2022, 17:11

There are many postings in the forum showing that e.g.

https://v6-forum.aaronia.de/forum/topic/amplifier-selection/

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#17 · 29/04/2022, 10:26

Please check this posting to verify if you have a faulty amp stage:

https://v6-forum.aaronia.de/forum/topic/amplifier-selection/#postid-1544