On 6/8/12 5:20 AM, Michael Baker wrote:
Time-nutters--
The Procom website lists the noise-figure of their quadrifilar
LNA as:
GAIN > 30 dB
NOISE FIGURE < 3 dB (incl. input filter).
Typ. approx. 3 dB
------------------------------------------------------------
I am a little surprised at this relatively high NF for a
product in this price category. Even most low-end
mass-produced consumer grade GPS antennas are
spec'd at 1.5 to 2.0 dB NF.
One thing to check on NF specs is the temperature range over which they
are valid. A "consumer" spec might be "at room temperature only", a
more rigorous spec might be "at -20 to +50C".
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