Neil,
Well that's the next thing to try, hope to get at it tomorrow. It has
been very very wet here the last few days, more than 120mm of rain fell.
Maybe that's why my
null has dropped down to LW with the high water table :)
Cheers again
Alan
On 27/10/2011 22:43, neilkaz wrote:
Hmmm...those dimensions should give you some decent nulls all across the BCB
band. Very weird that you get great LW nulls but poor at high freqs from a KAZ
that size.
I'd start by debugging your variable resistance control by replacing it with a
fixed resistor. If that results in the same, then perhaps your xfmr is the
problem and you could replace with your homemade own. 73 KAZ
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