Ray,
1 dB is generally agreed upon to be the minimum detectible difference in
audio that people can detect.
Of course, these measurements don't include QRM, QSB or AGC action.
Big gun stations will kill to pick up 1 or 2 dB extra gain somewhere.
73 de Brian/K3KO
On 5/23/2016 12:46 PM, Ray Sills wrote:
And following up with Jim’s posting about the KXPA100 specs: At the far end of
a QSO, the difference between an 80 watt signal vs a 100 watt signal would be
difficult to measure, let alone perceive by ear. In most cases, a 6 dB
difference in level is clearly noticeable, and that would be 25 watts vs 100
watts. A 3 dB difference can be heard by most people, but a 1 or 2 dB
difference is almost impossible to notice by ear.
So, even if you are operating with just 12 V, at the input to the amp… don’t
sweat it. If you can’t make the QSO with 80 watts, you aren’t going to make it
with 100 watts… not on HF, with SSB or CW.
73 de Ray
K2ULR
KX3 #211
On May 22, 2016, at 5:46 PM, Jim Brown <[email protected]> wrote:
On Sun,5/22/2016 11:46 AM, N6MQL wrote:
Although I appreciate all of your answers I specifically asked these questions
of Wayne because I was making a point to let him know of my disapproval of the
fact that the KXPA100 amp is incapable of running a full 100 watts on a
standard 12v battery.
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