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Anything else >> General and other topics >> PLL LNB with C band interference rejection filter ? https://www.satsig.net/cgi-bin/yabb/YaBB.pl?num=1371820222 Message started by Agor on Jun 21st, 2013 at 2:10pm |
Title: PLL LNB with C band interference rejection filter ? Post by Agor on Jun 21st, 2013 at 2:10pm
Hi all,
I am looking for a C-band (3.7 to 4.2 GHz) PLL LNB with LO frequency stability of up to 10KHz with a built-in BPF. I need the LNB for a system with beacon receiver. There is a WiMax transmission carrier in 3.5GHz nearby the receiving antenna. A stand alone BPF reduces the WiMax signal significantly but at the same time reduces the C/N of the service signal by 2dB. The carrier I wish to decode is in the range of 4100MHz. Norsat offers the 8000R, but it is a DRO LNB with poor LO frequency stability. any idea? Regards, Agor |
Title: Re: PLL LNB with filter Post by dot on Jun 24th, 2013 at 2:42pm
The NJS8487 from NJR should do what you want, it only receieves in the band from 3.625 to 4.2 GHz. https://mc.njr.co.jp/eng/products/vsat/c-lna_lnb.html
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Title: Re: PLL LNB with filter Post by Agor on Jun 24th, 2013 at 8:38pm
Thanks.
However, looking at the specsheet there is no trace of filter that blocks 3.4-3.625GHz signals or suppresses them. Do you have experience with the LNB in blocking extended C-band interferences? Regards, Agor |
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