21 Jan
2018
21 Jan
'18
2:54 a.m.
This is a wealth of information, Greg... thank you!
Bill W1PA
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 terrain/earth). 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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