Display bandwidth Bug ?

All bug reports here please
dc8gy
Posts: 13
Joined: Sat Aug 08, 2020 6:17 pm

Display bandwidth Bug ?

#1

Unread post by dc8gy »

Hello,
I may be making a mistake.
The filter bandwidth is displayed at odd setting for example 2,5khz with 2,488 Hz.at even setting for example 5khz is also displayed 5 khz. Is this a bug or am I making a mistake in the settings?
vy 73 George
Hz.jpg

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KA1GJU
Posts: 273
Joined: Tue Aug 11, 2020 2:16 pm

Re: Display bandwidth Bug ?

#2

Unread post by KA1GJU »

Why are you only at 2.4kHz bandwidth on W-FM (WIDE FM)?
The default filters start at 8kHz in SDRC for both N-FM and W-FM

2.4kHz bandwidth on FM will sound terrible!

73 Kriss KA1GJU
73 Kriss KA1GJU Home of the KA1GJU Super Station SDRC Servers in NH, USA (FN42mw & FN43na)

dc8gy
Posts: 13
Joined: Sat Aug 08, 2020 6:17 pm

Re: Display bandwidth Bug ?

#3

Unread post by dc8gy »

Hello Kriss,
this is not about the modulation type but about the display. The picture was only meant as an example, the faulty display in HZ also occurs with NFM or BC-FM if the bandwidth is not set to an even number like 5Khz or 10 Khz.
Please try and change the filter bandwidth.
vy 73 Georg

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KA1GJU
Posts: 273
Joined: Tue Aug 11, 2020 2:16 pm

Re: Display bandwidth Bug ?

#4

Unread post by KA1GJU »

Georg,

Not sure what you are running, since your DSP panel looks NOTHING like mine.
Are you running the latest software?
Are you running SDRC with a 'real' radio via Omnirig?
You have more info than mine!
This is where the WHOLE screen shot attached helps with the back n forth posts trying to
obtain good data, versus the chopped down frequency window of the DSP panel.

73 Kriss KA1GJU


DSP3.jpg
DSP3.jpg (16.97 KiB) Viewed 1201 times
73 Kriss KA1GJU Home of the KA1GJU Super Station SDRC Servers in NH, USA (FN42mw & FN43na)

Max
Posts: 868
Joined: Thu Aug 13, 2020 9:47 am

Re: Display bandwidth Bug ?

#5

Unread post by Max »

dc8gy wrote: Sat Oct 29, 2022 9:43 am Hello,
I may be making a mistake.
The filter bandwidth is displayed at odd setting for example 2,5khz with 2,488 Hz.at even setting for example 5khz is also displayed 5 khz. Is this a bug or am I making a mistake in the settings?
vy 73 GeorgeHz.jpg
Hi George

Sorry to say, I have no idea what you are trying to describe? A full screenshot would help, instead of the cropped one, so that we can see your selected filter setting in the RX DSP panel?

I've just tried setting up some odd, even and random filters in NFM and WFM and all seems to behave totally predictably.

Max

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