Yes I know all of this about the FT-1000, this was NOT the question. I have never heard that the NB in the 2000 is problematic. Maybe it is maybe it isn´t, I just like to find out.
It seems you just assume it´s problematic since it uses as you say the same circuit as in the 1000. Since you did bring it up, is this the case or do you know something else? /Jim -------------- On 2011-01-03 21:09, Joe Subich, W4TV wrote: > > It has been a known (documented by W8JI with fix) issue since the > FT-1000D. The noise blanker contains a dual gate MOSFET connected > to the IF that runs all the time. Instead of disabling the MOSFET, > the second gate is simply biased into an "off" state when the NB > is turned off. Unfortunately this allows the first gate to be > overdriven by strong signals which creates IMD that is coupled > directly back into the IF. > > The FT-2000 uses the same noise blanker circuit as the FT-1000, > FT-1000D, FT-1000MP, etc. > > 73, > > ... Joe, W4TV > > > On 1/3/2011 2:31 PM, Jan Erik Holm wrote: >> Is this a known issue with the FT-2000? >> /SM2EKM >> ------------ >> On 2010-12-31 23:31, Joe Subich, W4TV wrote: >>> >>> or issues of IMD generated in the noise blanker (even when the NB >>> is off). >>> >>> 73, >>> >>> ... Joe, W4TV >>> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
