Hi Jeff,
We almost always use the preamps on 160M, mostly as a convenience. With
the preamp active, the receive level is nearly exactly identical between
the verticals and the Beverages; otherwise the signals from the Beverages
are much weaker. This doesn't make a big difference with a sensitive
receiver, it's mainly an operator preference. The ARR preamps work great,
and there is never a reason to take them out of the circuit.
73
Frank
W3LPL
donovanf@sgate.com
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