Re: [Elecraft] K3 RX in real world

[Guy Olinger K2AV]

One thing I notice with better and better RX with less and much less RX
generated cr*p, is that TX/amp generated cr*p is presented quite a bit
clearer with much less disguise. Once upon a time that was all "band noise"
to us. Ain't clarity interesting?

What is really cool is to listen to an SSB pileup in correctly done K3
diversity and hear cr*p coming from the same point on the sound stage as
just one of the voices, not at all spread around like the true "band
noise".

73, Guy K2AV

On Tue, Sep 15, 2015 at 5:50 PM, Hisashi T Fujinaka 
wrote:

> On Tue, 15 Sep 2015, Jim Brown wrote:
>
> On Tue,9/15/2015 1:29 PM, Bill wrote:
>>
>>> the technical performance differences between the top rigs can only be
>>> discerned in a "copper" room.
>>>
>>
>> That is definitely not true. Digging weak ones out in a big contest, or
>> with a close by ham neighbor, will tell you right away. An inferior dirty
>> radio a few miles away driving a power amp will make your life miserable.
>>
>
> Exactly. Get on during CQWW. I could hear interesting transmitter widths
> from people half a continent away and interesting effects in my receiver
> as well (mostly noise blanker effects). I heard this all just on my
> dipole with no hams close by. Actually, K7VIT is 5 miles away but I can
> hardly hear him.
>
> --
> Hisashi T Fujinaka - ht...@twofifty.com
> BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee
>
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Re: [Elecraft] K3 RX in real world

[Wes (N7WS)]

When you turn on the noise blanker, all bets are off.


On 9/15/2015 2:50 PM, Hisashi T Fujinaka wrote:


Exactly. Get on during CQWW. I could hear interesting transmitter widths
from people half a continent away and interesting effects in my receiver
as well (mostly noise blanker effects). I heard this all just on my
dipole with no hams close by. Actually, K7VIT is 5 miles away but I can
hardly hear him.



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Re: [Elecraft] K3 RX in real world

[Hisashi T Fujinaka]

On Tue, 15 Sep 2015, Jim Brown wrote:


On Tue,9/15/2015 1:29 PM, Bill wrote:
the technical performance differences between the top rigs can only be 
discerned in a "copper" room. 


That is definitely not true. Digging weak ones out in a big contest, or with 
a close by ham neighbor, will tell you right away. An inferior dirty radio a 
few miles away driving a power amp will make your life miserable.


Exactly. Get on during CQWW. I could hear interesting transmitter widths
from people half a continent away and interesting effects in my receiver
as well (mostly noise blanker effects). I heard this all just on my
dipole with no hams close by. Actually, K7VIT is 5 miles away but I can
hardly hear him.

--
Hisashi T Fujinaka - ht...@twofifty.com
BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee
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Re: [Elecraft] K3 RX in real world

[Hank P]

I held this for three days  deciding whether to send it or not – here ‘tis.

I went from TT Orion - 3 of them at various times - to K3 . I was more than a 
little  concerned by size and Hold/Tap functions etc - I read all the stuff 
from Sherwood ,keep reading stories here about KSYN3A wonders.

Here is my take - I live in a hot bed of BIG time DXers and contesters  - it 
takes  quite a receiver to hold up when they all get going .I need a rig I can 
use when they are on. 

One guy about 4 miles away has K3/ALPHA8410 - and puts a measured 75 millivolts 
into the K3 ant jack on 160. I can copy and work weak DX with a 2khz split –  
(250hz 8pole)  I kind of  know he is there ,(no doubt about it  looking at P3) 
but stuff is copyable. (I can see his carrier on a scope on my antenna input , 
that’s something like S9+65dB) 

Another guy about 2 miles farther away has a bit better TX antenna  and is 
usually within plus/minus 1 dB of the closer guy – but he is painful +/- 15 
khz- and 30 dB of external pad does not make it go away. Its NOT my  K3 RX. (he 
DID find an arcing filter last year  that was making him +/- 50 khz or worse ) 

I do really wonder what I would notice with KSYN3As on my main /sub rx -  I 
live in a “field of RF noise”  even before the big guns. I DO really like both 
main and sub rx now truly  being fed by same LO. 

So I am a happy camper  PLUS  Elecraft  support has been BEYOND superb – I have 
found no-one to begin to compare. I could go on with a page of my experiences 
with other vendors. 

My K3  “feels” smooth to me – every bit as “smooth” as the Orions were - 

Just hope Elecraft  lasts longer than I do   Ham for 64 years – the K3 / P3 
/ KAT500  / KPA500 is such a SWEET combo. 

73 Hank K7HP

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Re: [Elecraft] K3 RX in real world

[Jim Brown]

On Tue,9/15/2015 11:35 AM, Hank P wrote:

I do really wonder what I would notice with KSYN3As on my main /sub rx -  I 
live in a “field of RF noise”  even before the big guns. I DO really like both 
main and sub rx now truly  being fed by same LO.


It won't help a bit when the other guy(s) are dirty, putting trash in 
your IF passband (that is, what your BW is set to), but it can help a 
lot with strong signals outside that passband.


73, Jim K9YC
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Re: [Elecraft] K3 RX in real world

[Bill]

Real World - that is all that really counts. All the testing and arguing 
that has been appearing of late is great, if you are a numbers cruncher 
and chart maker. But, to my thinking - the technical performance 
differences between the top rigs can only be discerned in a "copper" room.


Real world experience with QRM, QRN, good or poor antennas, band 
conditions are all the great equalizers. Reported real world experience 
- comparing one rig (A to B) - is of far greater value to me than a list 
of numbers.


Lots of explanations why one rig is preferred over another: handles 
QRM/QRN better, has more pleasing audio, better/worse ergonomics, more 
??? for the money, too many menus, great audio reports, great 
keyer/break-in, eye candy, etc.


Of course, all that said - it would be a very hard sell to get me away 
from my K3-Line. But, it would be interesting reading never-the-less.


Bill W2BLC K3-Line
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Re: [Elecraft] K3 RX in real world

[Jim Brown]

On Tue,9/15/2015 1:29 PM, Bill wrote:
the technical performance differences between the top rigs can only be 
discerned in a "copper" room. 


That is definitely not true. Digging weak ones out in a big contest, or 
with a close by ham neighbor, will tell you right away. An inferior 
dirty radio a few miles away driving a power amp will make your life 
miserable.


73, Jim K9YC
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