Interference 255mhz

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kevtheskin
Posts: 7
Joined: Tue Mar 31, 2015 4:17 pm

Interference 255mhz

Post by kevtheskin » Fri Mar 18, 2016 1:09 am

Hello all.
Is anyone else getting what looks like Dab radio interference from about 240 upto 260mhz . I cant use my Sdrpaly at all in this block. Have tried Sse broadcast filter but no change. Any ideas how to fix this?
Please see attach.


Thanks Kev
255mhz noise.JPG
255mhz noise.JPG (74.97 KiB) Viewed 10877 times
Last edited by kevtheskin on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
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g1hbe
Posts: 494
Joined: Sat Jan 17, 2015 3:28 pm
Location: Cheshire, UK

Re: Interference 255mhz

Post by g1hbe » Fri Mar 18, 2016 1:48 am

It's a known problem. Because the SDRPlay uses a converter to cover this frequency range, images are a problem. Try selecting a different LO frequency (EXTIO> advanced) or if this is not possible, an external filter.
Last edited by g1hbe on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
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Andy

kevtheskin
Posts: 7
Joined: Tue Mar 31, 2015 4:17 pm

Re: Interference 255mhz

Post by kevtheskin » Fri Mar 18, 2016 8:03 am

Hello Andy.
Thanks for reply. I am using a SSe Jim bandpass filter at moment and does not help. Any othe suggestions please.


Thanks Kev
Last edited by kevtheskin on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
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