[1000mp] NB correct use question

[Tom Rauch]

> Reason for the question.... it is necessary to turn the Noise Blanker
> to Zero on the MP or bad signal handling occurs EVEN IF the MP Noise
> Blanker is turned off......     Is it the same with the Mark 5 or not
> ?????

That is a good question, because every FT1000 series radio I have 
seen (I have not seen a MKV yet) has severely deteriorated close-
spaced IM performance WITHOUT the noise blanker actually being 
on. In the original MP, it is only with the front panel NB gain up. In 
the 1000D series, it is with ANY setting of the front panel NB 
control (you have to get inside the radio to fix it). 

I wonder if that long standing design problem was corrected in the 
MK V? Has anyone checked for it?

Also what about TX keyclicks? Did they actually fix that?
Does the weight control on the internal keyer actually adjust weight 
or does it wrongly adjust the dot-dash ratio?
 
> Who designs these radios, anyway?  

I'm sure the engineers are very good, but they probably get very 
little feedback from the field and they probably do not fully 
understand how to test things the way they should to weed out 
problems.

For many years the ARRL tested receiver IMD using an almost 
useless spacing that was outside the roofing filters, and I expect 
manufacturers do the same.
73, Tom W8JI
W8JI@contesting.com