Rig Rumbles?

[Gary NL7Y]

Earlier, "rumbles" were mentioned along with "artifacts" and all  
manner of audible squeaks and chirps generally hidden in the K3. I  
thought I had finally fully recovered from my IC-756 experience, and  
now this issue reminds me of that old unpleasantness.

Background: I like ICOMs and have owned or operated very many  
including the all 756 series through Pro II. My early Pro had low  
level "rumbles/artifacts", barely audible in quality headsets on a  
quiet band. I reported same to my Dealer, ICOM, and finally the ARRL  
during their initial testing. Read their review for a discussion of  
that discovery.

It was really there but at a low level, and thanks to a couple of  
gifted HAMs, the source was discovered and remedies suggested. ICOM  
denied the issue in written and spoken coms to me and others (I sent  
mine in for an ICOM checkup, and no problems were noted). They later  
fixed it by offering us a new improved model that was rumble-free,  
the new Pro II. It was an expensive repair to say the least versus  
potentially what could have been a few changes in circuit components.

Patience, and reconsider any suspicions surrounding Elecraft's  
continuing development policy. Their improved DSP board is a  
relatively free gift compared with buying a complete new radio as  
ICOM once offered the amateur community. Thanks to it's design, the  
K3 platform is simply a work in progress.

I'm looking forward to additional upgrades by Elecraft as time goes  
by and the K3 evolves. That's one reason why I decided to support our  
American company with my $. Thanks for your time.

73, Gary NL7Y
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[juergen piezo]

Hi Gary

And who can forget all the arguments on the Icom  group web pages. It sounded like what has gone on here. The Icom "no rumble" deniers  were out in force.  Anyway  Icoms have no rumbles or IMD  now and have good inband IMD performance.

The only thing I dont like about the Icoms now is their transmit sound.  They have such a robotic SSB sound thats very easy for me to detect. It reminds of  the  Daleks on the Dr Who TV show. The 756PRO3 and 7600 have this sound, not the 7700 and 7800.

I agree with your sentiments on the K3, people should just get with the program and go along with the K3 ride. DSP code and hardware is not carved in rock!


John



--- On Sat, 1/2/10, Gary and Kathleen Pearse <[hidden email]> wrote:

> From: Gary and Kathleen Pearse <[hidden email]>
> Subject: [Elecraft] Rig Rumbles?
> To: [hidden email]
> Date: Saturday, January 2, 2010, 9:31 PM
> Earlier, "rumbles" were mentioned
> along with "artifacts" and all 
> manner of audible squeaks and chirps generally hidden in
> the K3. I 
> thought I had finally fully recovered from my IC-756
> experience, and 
> now this issue reminds me of that old unpleasantness.
>
> Background: I like ICOMs and have owned or operated very
> many 
> including the all 756 series through Pro II. My early Pro
> had low 
> level "rumbles/artifacts", barely audible in quality
> headsets on a 
> quiet band. I reported same to my Dealer, ICOM, and finally
> the ARRL 
> during their initial testing. Read their review for a
> discussion of 
> that discovery.
>
> It was really there but at a low level, and thanks to a
> couple of 
> gifted HAMs, the source was discovered and remedies
> suggested. ICOM 
> denied the issue in written and spoken coms to me and
> others (I sent 
> mine in for an ICOM checkup, and no problems were noted).
> They later 
> fixed it by offering us a new improved model that was
> rumble-free, 
> the new Pro II. It was an expensive repair to say the least
> versus 
> potentially what could have been a few changes in circuit
> components.
>
> Patience, and reconsider any suspicions surrounding
> Elecraft's 
> continuing development policy. Their improved DSP board is
> a 
> relatively free gift compared with buying a complete new
> radio as 
> ICOM once offered the amateur community. Thanks to it's
> design, the 
> K3 platform is simply a work in progress.
>
> I'm looking forward to additional upgrades by Elecraft as
> time goes 
> by and the K3 evolves. That's one reason why I decided to
> support our 
> American company with my $. Thanks for your time.
>
> 73, Gary NL7Y
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

     
______________________________________________________________
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Post: mailto:[hidden email]

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