FT1000 poor RX IMD

Walt Kornienko k2wk@crystal.palace.net
Thu, 18 Apr 1996 23:57:20 -0400 (EDT)


> 
> Hello!
> 
> I wounder if anyone has tried to do anything to improve the poor
> 3:rd order RX IMD performance off the FT1000 ?
> The problem is probably in the 2:nd mixer,  has anyone tried to
> redesign the 2:nd mixer ? or how about a better roofing filter ?
> etc. etc. ??  Any ideas from someone ?
> 
> 73 de Jim SM2EKM   jeh@on.mobitel.telia.se

Hi Jim.  I inserted a 60 dB filter centered on the offending BC
station, 1360 kHz.  This helped, but didn't completely eliminate
the birdies on 1840 and 1950 kHz.
> 

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