Zadnje čase primerjajo NB pri bratih Markv:
"Hi Phil,
I have for years now a power line qrm specially from 17 to 10 meters.
Not everyday and it can disappear for months.
The QRM is usually S9 on one direction of the antenna.
With the mark V the NB had a little effect on it, with the field it
does and noise go down to nothing. Unfortunately the audio is distored
with the NB put on B12 or more but it works.
73 de val,f5idj
"ic8pof" <ic8pof@y...> wrote:
> HI, what sort of noise do you experience?
> my Field's NB has worked well since ever.
> The main noise in our location is generated from old motor-bicicles
> which has no RFI suppressors as all the modern motors have.
> Still some old cars have no RFI suppressors and still getting some
> noise on 15mt. My preferite setting is A11 or 12.
> Above this value the gap is too wide and makes distortion on the IF
> chain.
> Last I have added the W8IJ NB mod and now the receiver seems to be
> much quiter than before .
> 73 de Phil IC8POF"
>