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PLL LNB with C band interference rejection filter ?

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Ex Member
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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
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« Last Edit: Jun 28th, 2013 at 9:55am by Admin1 »  
 
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Posts: 118
Reply #1 - 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. http://mc.njr.co.jp/eng/products/vsat/c-lna_lnb.html
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Ex Member
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Reply #2 - 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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