[KX3] 160-80 meter mod?

[John Fritze]

Can anyone who has done the 160/80 meter LP filter mod tell me if there are
parts now on the pads on the circuit board?  If there are, did you just
break them off (then clean up the pads) or heat them and remove them?

--
John Fritze Jr
K2QY
AARA president 2013
ACACES secretary 2013
Albany County RACES Radio Officer
ARES ENY DEC Northern District
ARES Albany County EC
Twitter: @k2qy
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[Rich Heineck]

John,

The 160/80 meter mod that improves IMD dynamic range requires replacing
a total of four parts in the T/R switching and one of the BP filters.  
The mod would not be overly difficult for someone proficient with SMD
rework but I wouldn't recommend it for someone who isn't.  To answer
your question, trying to break off the existing parts would most likely
damage the board.  The areas are also pretty dense, so soldering iron
access is a bit tricky in a couple spots.

73,
Rich  AC7MA

On 01/09/2013 06:12 AM, John Fritze wrote:
> Can anyone who has done the 160/80 meter LP filter mod tell me if there are
> parts now on the pads on the circuit board?  If there are, did you just
> break them off (then clean up the pads) or heat them and remove them?
>

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[Lou Voerman W2ROW]

I did the mod and yes currently there are SMD parts at the locations of the four devices you need to replace. I had no trouble heating the existing devices to remove them. I also had no problem soldering the new devices in place. It was normal two pad SMD stuff, nothing special.

For reference I am reasonably experienced at soldering, but only moderately so at doing SMD work.

Lou W2ROW

John Fritze wrote

Can anyone who has done the 160/80 meter LP filter mod tell me if there are
parts now on the pads on the circuit board?  If there are, did you just
break them off (then clean up the pads) or heat them and remove them?

--
John Fritze Jr
K2QY

[Jeff Herr]

Where is the related information listed on the Elecraft web site?





-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of John Fritze
Sent: Wednesday, January 09, 2013 06:12
To: [hidden email]
Subject: [Elecraft] [KX3] 160-80 meter mod?

Can anyone who has done the 160/80 meter LP filter mod tell me if there are
parts now on the pads on the circuit board?  If there are, did you just
break them off (then clean up the pads) or heat them and remove them?

--
John Fritze Jr
K2QY
AARA president 2013
ACACES secretary 2013
Albany County RACES Radio Officer
ARES ENY DEC Northern District
ARES Albany County EC
Twitter: @k2qy
______________________________________________________________
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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