RTLSDR cant recieve METEOR with DCA 137MHz.

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AlarmedFelix
Posts: 23
Joined: Wed Feb 21, 2018 5:12 pm

RTLSDR cant recieve METEOR with DCA 137MHz.

Post by AlarmedFelix » Mon Mar 16, 2020 8:56 am

I build DCA (Double Cross Antenna )for 137MHz recently to improve my NOAA/METEOR satellite reception but i cant recieve METEOR at all.
It might be different problem but i think its because NOAA 18 and METEOR are passing above at the same time so NOAA signal wipes out METEOR because of intermodulation ( could be seen on waterfall, signal from 137.9125 on 137.1).
What can be solution?
Thx, Felix

rtlsdrblog
Site Admin
Posts: 2563
Joined: Mon Nov 19, 2012 11:54 pm

Re: RTLSDR cant recieve METEOR with DCA 137MHz.

Post by rtlsdrblog » Tue Mar 17, 2020 3:09 am

If it's due to intermod from two satellites interfering, then you'll need to reduce the gain. Also remove any LNA's if you are using any.

AlarmedFelix
Posts: 23
Joined: Wed Feb 21, 2018 5:12 pm

Re: RTLSDR cant recieve METEOR with DCA 137MHz.

Post by AlarmedFelix » Tue Mar 17, 2020 9:03 pm

Thanks.

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