3 dB feedline loss is not a practical number. At 6m I run only hardline,
90' of 1/2" for terrestrial and about 75' of 1-1/4" for EME. Loss is
<<1dB. If you keep your eyes open, surplus low loss feedline is not
expensive. Putting a preamp on the tower with appropriate sequencing &
isolation, especially if you run QRO, is more effort/cost/maintenance.
Hard to justify at 6m.
73,
Josh W6XU
On 1/25/2017 4:54 PM, Ken Arck wrote:
if you place a preamp with a NF of .5 dB at the "rig end" of a
feedline run that exhibits 3 dB of loss
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