Re: Why is KX3 phase noise so much less than the K3 ?

Posted by Jim Sheldon on Apr 02, 2014; 3:38pm
URL: http://elecraft.85.s1.nabble.com/Why-is-KX3-phase-noise-so-much-less-than-the-K3-tp7586369p7586379.html

Like Don said, "not in receive", but in transmit, driving an Alpha 9500 to the full 1500 out, a close neighbor (about 5 blocks away) was noticeable on my K3 within 5-10 KHz of his transmit frequency.   That said, the FTdx5000 was MUCH cleaner than the FT-1000MP he had prior to obtaining the 5000.  The phase noise & key clicks from the 1000MP were horrendous but at least his huge signal did not pump the K3's AGC unless he was within my 400Hz filter passband.

I could operate the same band and within 3 KHz or so of him after he got the 5000.  He, however, had problems with my 500 watt signal overloading his front end if he tried to operate within around 10KHz of me after he got the 5000.  Fortunately the entire problem was solved a few months ago when he moved to an inherited farm QTH 20 or so miles from here.  

W0EB

> Not that I know of, but when it transmits, it wipes out nearby
> receivers.
>
> 73,
> Don W3FPR
>
> On 4/2/2014 10:55 AM, Phil Wheeler wrote:
>> The FTdx5000 does that in RX mode?  Nasty! :-)
>>
>
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