[Elecraft] Where to put the wattmeter

[Jim Brown]

On 4/20/2023 11:05 AM, Fred Jensen wrote:
> I've just never found that the time-domain waveform was a very good 
> indicator of signal quality.

RIGHT!

By far, the most sensitive (and the most meaningful) measure of transmit 
distortion is occupied bandwidth, as measured on a spectrum display with 
narrow resolution bandwidth and narrow display bandwidth, and that can 
display and hold signal peaks. The P3 is quite good for this, and even 
better with the SVGA module. For voice modes, the waterfall can be 
adjusted to display splatter as horizontal expansion of the signal on 
voice peaks.

Elecraft rigs look great on such a display, straight vertical bars; 
overdriven power amps and many recent model Yaesu rigs produce splatter 
about 2.5 kHz both sides of their signal (those vertical bars), only 20 
dB down from PEP. That is, 2.5 kHz on both the suppressed carrier side, 
and 5.5 kHz on the other side of the suppressed carrier.

73, Jim K9YC