[amsat-bb] Mast mounted low noise amps
w1pa at hotmail.com
Sun Jan 21 01:54:06 UTC 2018
This is a wealth of information, Greg... thank you!
On 1/20/2018 5:28 PM, Gregory Beat wrote:
> Bill -
> The Icom AG-series of mast mounted pre-amplifiers for weak-signal and
> satellite work are now legacy (I believe Icom has discontinued
> recently). A lower noise figure of the active device (FET, MMIC) is
> important for satellite work (sky), than weak-signal work (noisy
> High noise-levels with the AG-series are often attributed to a Failed
> FET or an improper FET replacement by an earlier owner.
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