[Elecraft] P3 Anomoly

[Jack Berry]

I have been chasing the poor BNC cable issue as well. I have been using the DeoxIT-D100L product that many suggested. I thought for a while that it was fixed but the problem has returned inspite of several applications and attempts to clean both male & female connectors.

God Bless & 73!Jack - WE5ST 

________________________________
 From: Ian White GM3SEK <gm3sek at ifwtech.co.uk>
To: elecraft at mailman.qth.net 
Sent: Friday, October 26, 2012 5:06 PM
Subject: Re: [Elecraft] P3 Anomoly
  
N4OI - Ken wrote:
>> Appears to be bad BNC-BNC cable that was supplied with P3. Easy to
>> replace.
>
>Yes, I just assembled my P3 a few weeks ago and noticed that the BNC 
>cable ends had a very loose fit on both the P3 and K3 BNC connectors. 
>Although I did not experience a problem, I replaced it with a good 
>quality cable I had in a drawer.
>
Me too. On a fixed-tuned display, the P3 and P3SVGA waterfalls were 
displaying drifting bars of noise that moved with the VFOs, but could 
not actually be heard on either receiver of the K3 - in other words, 
they were internally generated spurious signals. When I replaced the 
supplied BNC cable with a disreputable-looking patch cable from the junk 
box, the problem disappeared.

On cutting away the plastic covers from the BNC crimp connectors, the 
metal sleeve on both connectors was found to be incorrectly crimped. The 
tool had been applied too far away from the connector body so that the 
crimp was squeezing mostly the soft cable, but failing to provide a 
solid 360deg clamping pressure onto the braid.

>
>My K3/P3 experience has been first-rate, but I suggest Elecraft should 
>take a look at their BNC cable supplier and consider upgrading for 
>future shipments.
>
Agreed.


-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
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