Re: [Elecraft] Re： K3 post SS observations

2010-11-23 Thread Guy Olinger K2AV
I found that certain capacitors were changing value over time and had to be replaced to restore proper AGC operation. Some of the capacitors had what turned out to be critical values, but did not have precision components. Some were more than double or one half their schematic values. It was wel

Re: [Elecraft] Re： K3 post SS observations

2010-11-23 Thread Barry N1EU
Hate to pile on to our once beloved FT-1000MP, but I owned two MP's and both over time developed REALLY poor/slow AGC recovery during fast action in cw contests. Several years back, I tried to get an up-close snapshot of exactly how the MP AGC was behaving and was shocked at what I was seeing: ht

Re: [Elecraft] Re： K3 post SS observations

2010-11-23 Thread Guy Olinger K2AV
The audio DSP on the MP was a nice implementation for it's time. The one big drawback was that the front-end and VHF IF's crushed easily. Going from the MP to the K3, at NY4A, a whole new layer of DX emerged that was hidden in the crunch-crud. The selectivity, with matched INRAD filters at 8 MHz

Re: [Elecraft] Re： K3 post SS observations

2010-11-23 Thread Nate Bargmann
* On 2010 23 Nov 06:47 -0600, Barry N1EU wrote: > > > Nate Bargmann wrote: > > > > The FT-920 as it was made was a nice step up from older/less featured > > radios. Had Yaesu opted to incorporate IF DSP in it, the cost may have > > approached that of the FT-1000MP and I think they were looking

Re: [Elecraft] Re： K3 post SS observations

2010-11-23 Thread Barry N1EU
Nate Bargmann wrote: > > The FT-920 as it was made was a nice step up from older/less featured > radios. Had Yaesu opted to incorporate IF DSP in it, the cost may have > approached that of the FT-1000MP and I think they were looking at a > middle point between that and the FT-840. The AF DSP w

Re: [Elecraft] Re： K3 post SS observations

2010-11-22 Thread Nate Bargmann
* On 2010 22 Nov 16:30 -0600, Johnny Siu wrote: > Hello Nate, Hi Johnny. > Glad that you chosed K3.  I am afraid that FT920 is a different kind of > animal and not in the class of K3.  You are now having a Rolls Royce whereas > previously a Toyota. Or, perhaps a Ferrari at a Lexus price? > No

[Elecraft] Re： K3 post SS observations

2010-11-22 Thread Johnny Siu
Hello Nate, Glad that you chosed K3.  I am afraid that FT920 is a different kind of animal and not in the class of K3.  You are now having a Rolls Royce whereas previously a Toyota. No offense to any Toyota and FT920 owners!!  cheers, Johnny VR2XMC - 郵件原件 寄件人﹕ Nate Bargmann 收件人