Topband: Receivers, Noise Blankers and Key Clicks

[Bill Tippett]

GM3POI wrote:
 >Can any one offer a reason why we get the following differences between the
MK5 and the Field:

         Clive, I would also add the original MP to your query:

Radio                        IMD               BDR

FT-1000MP*                   78*               108
FT-1000MkV                   69                100
FT-1000Field                 60                 88

*FT-1000MP IMD at 2 kHz and BDR at ~500 Hz per KC1SX.

This has always puzzled me since they have similar designs.

                                         73,  Bill  W4ZV

P.S.  Copying Mike KC1SX at ARRL who may have an opinion.