ELAD FDM-S3 Bandpass Filter Configuration with V3

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Fenu
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ELAD FDM-S3 Bandpass Filter Configuration with V3

#1

Unread post by Fenu »

Hi,

Since few days I have the S3 here. Now I have install following Bandpass and Highpass Filters. See below.
I have configure the Filters in both Software exactly the same, but the result is not the same.



Console V3 Filter config
V3 Filter config..JPG
SW2 Filter config
SW2 Filter config..JPG
If I have as example 24MHz bandwidth and tune with the SW2 above 1700KHz the Higpass is active and cut the range below 1700KHz.
SW2 24MHz-Highpass 1700.JPG
If I tune below 1700KHz the Highpass is deactivated.
SW2 24MHz-Highpass 1699.JPG
With the Console V3 I cannot see that the Highpass is active if the tuned Frequency is above 1700KHz.
V3 Highpass 1700.JPG
What I make wrong?

Thanks.

Regards
Fernando

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Simon G4ELI
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Re: ELAD FDM-S3 Bandpass Filter Configuration with V3

#2

Unread post by Simon G4ELI »

Hi,

I'll check this - it's a bug I think, I'm not switching correctly.
Simon Brown :shock:
www.sdr-radio.com

Do not send me direct e-mail, thank-you!

Fenu
Posts: 24
Joined: Sat Sep 12, 2020 6:05 am
Location: Kefikon
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Re: ELAD FDM-S3 Bandpass Filter Configuration with V3

#3

Unread post by Fenu »

Simon G4ELI wrote: Fri Jan 22, 2021 12:09 pm Hi,

I'll check this - it's a bug I think, I'm not switching correctly.
Ok. Thanks.

Sometimes the Highpass Filter is on or switch if tune above 1700KHz. This I can bring on if I switch off/on the Radio. Unfortunately, I cannot describe a defined path. Sometimes it works, sometimes it doesn't. That seems to be related to the display / radio settings.

Can you explain me with other words for what are this function?
V3 Filter config..jpg

dang999
Posts: 2
Joined: Sat May 08, 2021 11:46 am

Re: ELAD FDM-S3 Bandpass Filter Configuration with V3

#4

Unread post by dang999 »

Hi, Was this issue resolved? I have a similar problem. I have just added some filters to my S3 and whilst it works ok in the SW2 software it doesn't in V3. I'm sure it's my error!

By my reckoning I should be seeing the frequencies below 500khz being attenuated in the following screenshot:
Screenshot-2021-05-08-125227.jpeg

These are the filter setting I have applied:
Screenshot 2021-05-08 125327.png
Thanks and regards,
Danny.

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Simon G4ELI
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Re: ELAD FDM-S3 Bandpass Filter Configuration with V3

#5

Unread post by Simon G4ELI »

My logic is to only enable a filter when either the radio or display bandwidth is inside the filter range. IMO enabling the 1Hz to 500kHz filter while displaying a wider range doesn't make sense, but I can always add this.

May is dedicated to 3D graphics.
Simon Brown :shock:
www.sdr-radio.com

Do not send me direct e-mail, thank-you!

dang999
Posts: 2
Joined: Sat May 08, 2021 11:46 am

Re: ELAD FDM-S3 Bandpass Filter Configuration with V3

#6

Unread post by dang999 »

Thanks Simon. I'd opened out the display bandwidth to illustrate what I thought was incorrect behaviour but I understand your logic now.

Danny

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