TopBand: InRad FT1000MP Mod: Good for 160?

[w8ji.tom]

Hi Ty,

> First off, let's explain what this mod does:  It adds amplification at
the
> 70Mhz IF stage.  This to compensate for a lack of front-end gain when
> listening to very quiet high bands (such as 15 meters at night, etc.). 
My
> experience with the MP's is that the only bands that really benefit from
this
> mod are 21 and 24 mhz.  

My regular FT-1000 suffers from too much gain ahead of the narrow filters
in the lower IF's, particularly on 160 meters. I don't know how the MP
compares, but the last thing the regular 1000 needs is more gain before the
narrow 8 MHz filters on TopBand !

On quiet days, it needs more amplification when using narrow filters on CW.
Running the preamp causes it to suffer from IMD (the IMD sounds like
garbled CW, like listening to a novice band with the BFO off) from close by
strong CW signals.

I'm thinking of adding more gain just after the 8 MHz narrow filters and
reducing front end gain. Anyone tried that?

Also if there is a mod to slow the tuning rate down, can someone please
give me the source?

73 Tom

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