[Elecraft] K3 transmit audio cuts out

[Eugene Balinski]

APP connectors can be a real pain if not done absolutely
correctly.   I ended up purchasing a ratcheting crimper
from HRO as I could never get just the right force on the
manual one.  It was either too weak and the wire would fall
out when tugged, or I would mash it too hard, and the
contact would not fit in to the plastic housing.   The
ratcheting crimper is first time, every time, at least for
now

73

K1NR


On Sun, 29 Jul 2012 06:54:23 -0700
 Keith Heimbold <ag6az at hotmail.com> wrote:
> Don,
> 
> I am pretty sure that we found the culprit. The APP
> connectors did not click properly for the one set and I
> am examining the ones for the other. I will need to be
> more diligent in making sure I get a good click inserting
> into the plastic housing.
> 
> I spent a lot of time rooting out any RFI issues but I
> guess that is really time well spent since cleaning up my
> shack and all the cables and wires is probably a good
> idea.
> 
> Thanks,
> 
> Keith
> AG6AZ
> 
> Sent from my iPhone please excuse typos
> 
> On Jul 29, 2012, at 6:34 AM, "Don Wilhelm"
> <w3fpr at embarqmail.com> wrote:
> 
> > Keith,
> > 
> > If your APP connectors do not mate with a bit of a
> *click*, then they are assembled incorrectly.  The blades
> of the conductors *must* be locked over the tips of the
> spring fingers located in the housing.
> > 
> > Things come in threes so the sayings go, I have
> repaired 2 KPA100s in the last week which did not have
> the blades of the APP connector fully seated - I am
> waiting on the 3rd one.
> > 
> > 73,
> > Don W3FPR
> > 
> > On 7/28/2012 11:10 PM, Keith Heimbold wrote:
> >> Don,
> >> 
> >> I am now starting to think that it is an issue with my
> power connectors that I am using.
> >> 
> >> I bought some additional ferrites and put the balun
> design 1113u in line to take care of RFI but i know
> believe that the power connectors are a little
> intermittent at times. I don't always get a solid click
> when inserting into the back of the K3 or into the power
> supply line. I like the convenience of those type of
> connectors but they do seem to loosen up over time.
> >> 
> >> Thanks again,
> >> 
> >> Keith
> >> AG6AZ
> >> 
> >> Sent from my iPhone please excuse typos
> >> 
> >> On Jul 28, 2012, at 3:44 PM, "Don Wilhelm"
> <w3fpr at embarqmail.com> wrote:
> >> 
> >>> Keith,
> >>> 
> >>> You could also have a loose connection in your
> microphone cable. When operating SSB, if there is no
> audio, there will be no RF output.
> >>> So you can look at the PTT, the audio, the power
> supply, and just about every thing else in your station.
>  Cables are usually the weak link.
> >>> 
> >>> 73,
> >>> Don W3FPR
> >>> 
> >>> On 7/28/2012 5:34 PM, Keith Heimbold wrote:
> >>>> Gene,
> >>>> 
> >>>> Great suggestion. It maybe the connector going into
> the rig or the connectors which I built.
> >>>> 
> >>>> Thanks,
> >>>> 
> >>>> Keith
> >>>> AG6AZ
> >>>> 
> >>>> 
> >>
>
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