At 03:59 PM 2/26/97 -0500, Steve wrote:
>I've got the 38S working however, I think I still have a problem. The RF
>gain control has to be run wide open to hear anything and it is nowhere
>near as sensitive as the receiver in my my Yaseau 900.
>
>I have rewound T1 several times. It is now 2t primary, 17t secondary. I
>do get two peaks when I tune TC1. I have also tried changing C4 to 10pf as
>suggested by Jim, K8IQY. The sensitivity still seems low.
>
>Any ideas would be greatly appreciated.
It may be that you are comparing noise levels, and the 38S is quite
a bit quieter than your 900, I'd guess, since the 38S is all analog,
and the 900 is systhesized. The 38S may not hear as well also, but
shouldn't be worse by more than a few dB, based on my experience.
Also, make sure that you headphones are a good match for the output.
Mine wasn't hearing all that well (I thought) until I ran the headphones
sides in series instead of parallel. Boy what a difference. And then
I shorted out the resistor (R24) on the output of U5B and was amazed
at the difference that made.
72 and GL.....Jim
Jim Kortge, K8IQY (ex NU8N) | BMHA, NorCal, QRP-L
jokortge@tir.com | __o Cascade 17/40 SSB
Fenton, MI |_`\<, Mizuho 17/40 SSB
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