[ARC5] 10 meter BC-454 - a bit more

[Neil]

> There is an increase of 6 times between the noise output without the antenna and with it.
> 2 V pk-pk without and 12 v pk-pk with it.
>
> I am using the formula db=20Log (V1/V2).
>
> 15.6 db seems significant to me.

You made me get out my Faber Castell 52/82 slide rule.
15.6 db is correct. In this case, it doesn't matter whether the voltages are
expressed in pk-pk or peak or RMS, so long as they're both expressed
in the same terms so it's then simply a voltage ratio.

I'm rather surprised at the figures. They seem to indicate you have a very
high noise level on 28 MHz in your area.

73 de Neil ZL1ANM