Topband: How Increase 160m power on FL2100z

[Damien F4AZF]

Hi ,so some news after some tests :

I have add 1000pF on the load capacity:

Can nearly 550w .. so it was missing some !

Today I have add 5 more turns on the Load tank coil..(14 original + rest of
other bands)

Tune has change value on 160...(around 5 for nearly all the band) but now I
have a bit too much capacity load (now at 10 so minimal capa!) .. I ll have
to decrease some 500pF I think but power still limited at 550Watts on 160m,
seems that having more turns on the tank coil has no real effect actually..

Anyway and hopefully, no effect on other bands.

I have win a bit of power that's sure but should be possible win more... I
must continue to work on !

Thanks everyone's for the help

73s de Damien F4AZF







-----Message d'origine-----
De : Tom W8JI [mailto:w8ji at w8ji.com] 
Envoyé : dimanche 20 avril 2014 19:09
À : Damien F4AZF; topband at contesting.com
Objet : Re: Topband: How Increase 160m power on FL2100z

So i ll do some mods during the week , 1st add some capacitance on the Load
in // to c32 en cie... I ll begin with 470p more and do the test and
increase...

Once ok I ll add some inductance on the 160m circuit with a torroid T-200 +
some 10 turns ,and I ll have to found a place to put inside)>>>

If you are doing work you may as well do it correctly. Adding tank
inductance will probably fix the entire problem, plus give you more matching
range and sharper tuning. Then you can probably remove capacitance.

73 Tom