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Old April 13th 06, 03:37 AM posted to rec.radio.amateur.homebrew
**THE-RFI-EMI-GUY**
 
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Default Lowering the noise figure in a preamp

How are you measuring noise figure? Describe your setup?

wrote:

Thanks for the website, my problem was i had a factory cellular preamp
from surplus equipment, it had a ceramic filter on the input set
824-850 mhz. When i removed the filter the noise figure was terrible
but the bandwith very wide, im trying to get it to operate in the 33cm
band with decent noise figure. The only thing i can figure is that by
removing the banpass filter i raised the NF?




--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

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