[Amps] Odd efficiency shift on 80m band

[n8de at thepoint.net]

We all seem to forget that the 80m band has the largest % of range of  
all the HF bands.

160m = 1.8 - 2.0 = 11% bandwidth
80m = 3.5 - 4.0 = 14% bandwidth
40m = 7.0 - 7.3 =  4% bandwidth
30m = 10.1 - 10.15 = .5% bandwidth
20m = 14.0 - 14.350 = 2.5% bandwidth
17m = 18.068 - 18.168 = .6% bandwidth
15m = 21.0 - 21.450 = 2.1% bandwidth
12m = 24.89 - 24.99 = .4% bandwidth
10m = 28.0 - 29.7 = 6% bandwidth

With such a large bandwidth %, it is no wonder that circuit designs  
just don't work 'flat' across the whole band.

I'll leave it to the experts who can talk about Q, etc .. across that band.

Don
N8DE


Quoting TexasRF at aol.com:

> Just curious: is the lowered efficiency because power output is reduced or
> because the plate input power has increased, or a combination of both?
>
> 73,
> Gerald K5GW
>
>
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