[Elecraft] ON4UN has a K3?
OZ2BRN Brian Lodahl
oz2brn at post.cybercity.dk
Tue Jan 4 12:39:18 EST 2011
Yep, it's been on Youtube for the better part of 2 years now ...
Mr. Low-band DX'ing made the big step from Ten-tec Orion's to K3's some
time ago.
http://www.youtube.com/watch?v=DT_NwIsz54k
73'
Brian OZ2BRN
Den 04-01-2011 14:17, Bill W4ZV skrev:
> Oops, I meant to include the link to W8JI's comments below:
>
> http://www.w8ji.com/polarization_and_diversity.htm
>
> 73, Bill
>
>
>
> Craig-89 wrote:
>> I happened to tune across John ON4UN on 40 meters working a JA this
>> morning(his evening). John was soliciting opinions from the JA on the
>> audio quality of a K3.(he sounded great) It will be interesting to hear
>> what John thinks of his? K3.
>>
>> Can anyone confirm that John owns one, or maybe was he just testing
>> someone else's K3? An evaluation from this highly respected author
>> should make for some interesting reading.
>>
> Sorry for the reference to Craig's old 2008 post above but I
> searched the archives to see if anyone had mentioned ON4UN's new 5th edition
> of his Low-Band DXing. I just received my copy a few days ago and the K3
> was most definitely the star of Chapter 3 - Receiving and Transmitting
> Equipment. John's concluding comment at the end of the chapter:
>
> "You can buy the best transceiver there is on the market for a very
> reasonable price, the Elecraft K3. And no, I have no connection with
> Elecraft, and paid the full price for my K3s. I would be ashamed asking for
> a discount for such a wonderful piece of equipment at such a very reasonable
> price."
>
> For those who may not have seen it, here's another nice endorsement
> from Tom W8JI regarding diversity and the K3:
>
> "I implement stereo diversity by phase locking two separate receivers
> (heavily modified R4C's) together so audio outputs are exactly locked in
> phase. The receivers are virtually identical, even to the point where I hand
> select crystal filters for equal group delay change over the filter
> passband. Every oscillator in the receiver system is common to both
> receivers. I'm aware of only one commercially available amateur receiver
> that does true stereo diversity, the Elecraft K3. I currently use an
> Elecraft K3 since it is the only system that phase-locks two identical
> receivers, it interfaces a good transmitter with the receivers, and is a
> modern stable design with accurate frequency readout."
>
> <SNIP>
>
> "There are articles describing how to electronically lock the receiver
> tuning of the FT1000D (and other receivers) so the sub-receiver tracks the
> main receiver. This does somewhat work in the FT1000, because the
> oscillators share a common time base. The main problem with the FT1000 is
> the second receiver isn't a very good receiver, the filters do not match,
> the AGC does not match, and phase shift through the receivers (especially as
> the signal moves off the filter center) is not at all similar.
>
> I had similar disappointment with the Orion system.
>
> To the best of my knowledge the K3 Elecraft is the only receiver that has
> absolutely identical receivers that share one common reference system. That
> is what I have switched to now."
>
> I thought some of you might be interested to see what two of the
> best low band DXers thought about their K3s.
>
> 73& HNY,
>
> Bill W4ZV
>
>
>
>
>
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