How To Use a Low Noise Amplifier (L.N.A.)

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Visual and verbal how-to on using an LNA.
  1. sunwave
  2. low noise amplifier
  3. lna
  4. rtl-sdr
  5. sdr
  6. radio
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Комментарии
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i worked on an LNA housing for boeing satellite systems advanced design team. it had 4 LNA's with 4 mirrored and 8 redundant LNA's. ill never forget all the #0's screws for the waveguide covers haha.

dmbworks
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can you comment on why LNA is not good with the sdrPlays... i understood what you said about lower gain increases noise.. just asking for further explanation... does the sdrPlay rsp1b have an internal amp or something?

DZX
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I'm just wondering if the LNA is REALLY in pass-thru mode when not powered??? My RTL-SDR V4 is so sensitive that it does not need the help of an LNA!!!

danedewaard
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LNAs are needed at higher frequencies. The natural noise level is high on 80 meters.

billryland
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Hi is it possable to use this on a quansheng?many thanks 🇬🇧

Robyn.....................
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The rf-in and rf-out are not labeled on the housing of the LNA device. The dc connector is on the rf-in side, it should be on the rf-out side.
The MMIC amp chip has only *one* uni-directional diode for protection. So in reality you should need two of them antiparallel. Or better: an bi-directional protection. 😇
There are many reports of malfunctions at this type of LNA...

nixraff
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do u recommend a bias tee powered lna or a external powered lna?

nol_yaw
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