Elecraft

K-3

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gmuller885

K-3

I am having trouble with the K-3. When I xmit for a period of time the
Display starts to fluctuates with the modulation in my voice. The longer I am
on the more rapidly it fluctuates till it shuts down the K-3. I have removed
all external cables and even done this with a dummy load. I have a DX
engineering Current chock at the entrance to the house and at the antenna. I am
told that people can here RF on the signal. Any suggestions?

Gerald Muller KF5EYC
[hidden email]
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Don Wilhelm-4

Re: K-3

Gerald,

Have you checked the power cable? Are the connector blades of the APP
connector fully inserted and locked over the locking blades in the housing?
Are the connections to the power supply tight?

Too much resistance in the power cabling (due to loose connections) can
cause exactly what you are observing.

73,
Don W3FPR

On 2/4/2014 3:32 PM, [hidden email] wrote:
> I am having trouble with the K-3. When I xmit for a period of time the
> Display starts to fluctuates with the modulation in my voice. The longer I am
> on the more rapidly it fluctuates till it shuts down the K-3. I have removed
> all external cables and even done this with a dummy load. I have a DX
> engineering Current chock at the entrance to the house and at the antenna. I am
> told that people can here RF on the signal. Any suggestions?
>
>

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gmuller885

Re: K-3

In reply to this post by gmuller885

Rick:
Checked the connections. All are good now. Spread the spades on the
PowerPoles on all connections and tightened the Ground and made the power
connections tighter. Seems to work fine now. Just contacted a Bloke in
Montreal Canada and it seemed to work fine. When transmitting the unit pulls
about 15 amps. Has that been your experience with the amperage?

Gerald Muller KF5EYC
[hidden email]

In a message dated 2/4/2014 3:06:23 P.M. Central Standard Time,
[hidden email] writes:

Sounds like some good advice, Jerry.

Also, check the power supply itself. Does it maintain voltage? Any
current
clamping going on? Etc.

73.......Rick

-----Original Message-----
From: Don Wilhelm [mailto:[hidden email]]
Sent: Tuesday, February 04, 2014 2:45 PM
To: [hidden email]; [hidden email]
Cc: [hidden email]
Subject: Re: [Elecraft] K-3

Gerald,

Have you checked the power cable? Are the connector blades of the APP
connector fully inserted and locked over the locking blades in the housing?
Are the connections to the power supply tight?

Too much resistance in the power cabling (due to loose connections) can
cause exactly what you are observing.

73,
Don W3FPR

On 2/4/2014 3:32 PM, [hidden email] wrote:
> I am having trouble with the K-3. When I xmit for a period of time the
> Display starts to fluctuates with the modulation in my voice. The
> longer I am on the more rapidly it fluctuates till it shuts down the
K-3.
I have removed
> all external cables and even done this with a dummy load. I have a
> DX engineering Current chock at the entrance to the house and at the
antenna. I am
> told that people can here RF on the signal. Any suggestions?
>
>

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Gary Smith-2

Re: K-3

In reply to this post by Don Wilhelm-4

Along that same line as Don suggests you look at; do you have a power
supply with a variable voltage & current? I have an Astron with both
on the front panel and I was having troubles till I realized I had
bumped the controls to the PS and that was my problem.

73,
Gary, KA1J

> Gerald,
>
> Have you checked the power cable? Are the connector blades of the APP
> connector fully inserted and locked over the locking blades in the housing?
> Are the connections to the power supply tight?
>
> Too much resistance in the power cabling (due to loose connections) can
> cause exactly what you are observing.
>
> 73,
> Don W3FPR
>
> On 2/4/2014 3:32 PM, [hidden email] wrote:
> > I am having trouble with the K-3. When I xmit for a period of time the
> > Display starts to fluctuates with the modulation in my voice. The longer I am
> > on the more rapidly it fluctuates till it shuts down the K-3. I have removed
> > all external cables and even done this with a dummy load. I have a DX
> > engineering Current chock at the entrance to the house and at the antenna. I am
> > told that people can here RF on the signal. Any suggestions?
> >
> >
>
> ______________________________________________________________
> 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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Jack Brabham

Re: K-3

In reply to this post by gmuller885

Punch the "DISP" button and dial up the power supply voltage via the "B"
knob.

That way you can check to see if you are getting good power. A drop of
a few tenths of a volt on TX is normal.

73 Jack KZ5A

On 2/4/2014 2:32 PM, [hidden email] wrote:

> I am having trouble with the K-3. When I xmit for a period of time the
> Display starts to fluctuates with the modulation in my voice. The longer I am
> on the more rapidly it fluctuates till it shuts down the K-3. I have removed
> all external cables and even done this with a dummy load. I have a DX
> engineering Current chock at the entrance to the house and at the antenna. I am
> told that people can here RF on the signal. Any suggestions?
>
> Gerald Muller KF5EYC
> [hidden email]
> ______________________________________________________________
> 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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Nr4c

Re: K-3

In reply to this post by gmuller885

Check voltage to radio at full power.

...bill nr4c

Sent from my Verizon Wireless 4G LTE DROID

[hidden email] wrote:

>I am having trouble with the K-3. When I xmit for a period of time the
>Display starts to fluctuates with the modulation in my voice. The longer I am
>on the more rapidly it fluctuates till it shuts down the K-3. I have removed
> all external cables and even done this with a dummy load. I have a DX
>engineering Current chock at the entrance to the house and at the antenna. I am
> told that people can here RF on the signal. Any suggestions?
>
>Gerald Muller KF5EYC
>[hidden email]
>______________________________________________________________
>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
>