The NB in the 1000MP series lacks a lot to be desired, to say
the least. It is one of the weakest aspects of that radio, in my opinion.
Have you played with the NB menu settings? Sometimes using a
"lower" level of blanking will reduce somewhat the IMD.
At a previous QTH, I used an external noise cancelling device
(MFJ-1026, I believe). It helped a lot, but retuning the danged
thing during a contest was very cumbersome.
Unfortunately, the BEST solution is not the EASIEST. That is, trying
to find the noise source and eliminating it. I hope your local utility
company is as easy and cooperative to work with as is our local
> From: email@example.com
> To: firstname.lastname@example.org
> Date: Wed, 23 Feb 2011 17:14:41 -0500
> Subject: [Yaesu] Yaesu FT1000MP Noise Blanker and Intermod
> I have a recent and significant line noise problem at my qth.
> In the past, I was fairly successful at using the FT1000MP NoiseBlanker(s)
> to take filter it out but now when there are signals on the band greater
> about S5-6, the resulting intermod is such that it obliterates weaker
> signals calling me.
> The intermod sounds a lot like the line noise itself, but I only hear it
> the station is transmitting and is reasonably close in frequency to me.
> This was a huge problem this past ARRLDXCW weekend as the line noise
> was very loud and I had to crank the NB to maximum to remove it.
> With the intermod, if the station calling wasn't at least s6-7, I could not
> I have had all the typical FT1000MP mods installed, including the W8JI key
> mod and AF gain mod and I also use the International Radio Roofing filter.
> Is there anything that I can do with the MP to reduce the intermod/NB
> so that I can copy signals?
> Please let me know. Tnx & 73
> Bob KQ2M
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