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Any Program Indication That RF Gain Too High ?

Robert111
Posts: 11
Joined: Wed Aug 19, 2020 10:53 am

Any Program Indication That RF Gain Too High ?

#1

Unread post by Robert111 »

Hello,

Have a RSPdx.

Is there any "visual" program indication that you have the rf Gain set to high, and possibly overloading the RSPdx ?

If not, what's a good way of telling ?

Thanks,
Bob

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mbott
Posts: 69
Joined: Sat Aug 08, 2020 10:48 am
Location: Westerville, Ohio EN80nd
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Re: Any Program Indication That RF Gain Too High ?

#2

Unread post by mbott »

Robert,

Although I haven't seen it lately, I'm pretty sure there is a pop-up overload message in the middle of the waterfall. Tried to force my RSP2 into an overload, but the message did not appear. I will post a pic if successful.
--
Mike

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mbott
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Re: Any Program Indication That RF Gain Too High ?

#3

Unread post by mbott »

Got one
Attachments
Screenshot-2020-08-21-185101.png
--
Mike

jdow
Posts: 235
Joined: Mon Aug 10, 2020 8:17 pm

Re: Any Program Indication That RF Gain Too High ?

#4

Unread post by jdow »

I am not sure how I would go about that. Most front end hardware such as rtlsdr dongles do not export a flag that indicates that the A/D converter has overflowed. That is the information that is needed.

However, you generally do get visual indication when a small increase in gain or the appearance of a strong signal causes the spectrum to go crazy and the noise floor increase dramatically. When you really do hit overload it's rather dramatic on the spectrum.

{^_^}

pauldbnut
Posts: 94
Joined: Wed Aug 19, 2020 10:59 am
Location: Dinosaur Country (IoW)

Re: Any Program Indication That RF Gain Too High ?

#5

Unread post by pauldbnut »

mbott wrote:
Fri Aug 21, 2020 10:54 pm
Got one
"Signal Overload" listening to "Overcomer Ministry".
Now why would that surprise me? ;)
Paul White (Grumpy Old Git)

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