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Hfff.....why Bf998 can be simulated in Multisim

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ozenk

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bf998

i'm now still design LNA for weather satellite reception (137.5 Mhz). some friends, suggest me to use multisim...but i cant simulate it..


i have been review many design about this LNA (maybe ten, i found in web), but i'm still confuse how to simulate it..


i have been build the model in Multisim, but when i simulate it i cant get good data like the gain was negative and when i use oscilator, there was to much ripple .....


i also attached one of my design, it based of hamtronic design, can anyone review it....


maybe some component false or i;m wrong when simulate it.
 

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