SENTHIL KUMAR
Banned
- Joined
- 13 May 2015
- Messages
- 302
- Reaction score
- 474
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The noise figure of the LNB is a measurement of how much noise the LNB will add to the signal you may be intending to receive. The Noise Figures (N.F) also refers the quality of the first stage input amplifier transistor. It noted on the LNB sticker or body.
The quality is measured in units called Noise Temperature, Noise Figure or Noise Factor. Both Noise Figure and Noise Factor may be converted into Noise Temperature.
The lower the noise figure of the LNB the better the LNB will be able to receive weaker signals. The lower the Noise Temperature is not receive more noise. So an LNB with Noise Temperature = 13 K is as good as one with 17 K. (K means degrees Kelvin)
So in practical,
17 K - Normal
15 K – Better
13 K - Best.
Advantages of 13 K LNB .
1. Noises are reduced.
2. Picture freezing can be avoided.
3. Useful for low signal / out of coverage satellites.
The noise figure of the LNB is a measurement of how much noise the LNB will add to the signal you may be intending to receive. The Noise Figures (N.F) also refers the quality of the first stage input amplifier transistor. It noted on the LNB sticker or body.
The quality is measured in units called Noise Temperature, Noise Figure or Noise Factor. Both Noise Figure and Noise Factor may be converted into Noise Temperature.
The lower the noise figure of the LNB the better the LNB will be able to receive weaker signals. The lower the Noise Temperature is not receive more noise. So an LNB with Noise Temperature = 13 K is as good as one with 17 K. (K means degrees Kelvin)
So in practical,
17 K - Normal
15 K – Better
13 K - Best.
Advantages of 13 K LNB .
1. Noises are reduced.
2. Picture freezing can be avoided.
3. Useful for low signal / out of coverage satellites.