[Elecraft] K3 transmit audio cuts out

[Keith Heimbold]

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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