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Mods to 3733



Has any made the 0.35 chip cap on stub mod for the 3733 operating at 123 mHz
IF ?
If so, what were the results ?

73 de Don KC4YRT


> I retuned it by doing the mod from WC0Y:
>  With no mods => 9.8 dB NF !!
> > With stub removed => 4.1 dB NF (123 and 145 MHz IF)
> > With stub retuned to image frequency => 1.8 dB NF
> >
> > I retuned the stub to notch the 2111 MHz image frequency by soldering a
> > 0.5pf chip capacitor on the open end of the stub, shifting its
frequency.
> >
> > Details can be found at http://communities.msn.com/wc0y
>

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