KAT2

[Robert "rc"Conley]

Hi gang
Having just finished building a KAT2  for K2 #5804
and I'm at the point of doing the checkout and
calibration prior buttoning it up. Every thing
checked okay until I got to POWER calibration
R1 & R2 when I go to TUNE my display reads
" 7.3F 6.8r" I also get a HI CUR displayed when
first activating tune. My DMM reading off of the
DL-1 are less than .5 vdc
RC kc5wa
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[Don Wilhelm-3]

RC,

Re-do the power and SWR calibration, and then try it into a 50 ohm dummy
load.  Tell us what you find.
I know that is not an answer to your total problem, but there has to be a
starting point, so verify that calibration first and we can go from there.

In case you cannot achieve a good calibration, it may be that there is a
relay that is not operating - usually due to an unsoldered relay pin.  I
know it is difficult to check those pins because they are under the
inductors and capacitors, but it may just have to be done - we will see
after you re-do the calibrations.

73,
Don W3FPR

> -----Original Message-----
>
> Hi gang
> Having just finished building a KAT2  for K2 #5804
> and I'm at the point of doing the checkout and
> calibration prior buttoning it up. Every thing
> checked okay until I got to POWER calibration
> R1 & R2 when I go to TUNE my display reads
> " 7.3F 6.8r" I also get a HI CUR displayed when
> first activating tune. My DMM reading off of the
> DL-1 are less than .5 vdc
> RC kc5wa

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[Leigh L. Klotz Jr WA5ZNU]

There are also some pins quite visible but right next to plate-through
holes (vias) and if you don't look with a loupe you might think the coil
is soldered...not that I know from experience, hihi.
73,
Leigh/WA5ZNU
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[Robert "rc"Conley]

I  rechecked the pins on the relays [ugh] found a donut solder joint
reflowed it and two others Did the power calibration...
Display in tune is now 5.6F 0.0r voltage on DMM is 9.90vdc
RCkc5wa
-----------------------------
Don Wilhelm wrote:

>RC,
>
>Re-do the power and SWR calibration, and then try it into a 50 ohm dummy
>load.  Tell us what you find.
>I know that is not an answer to your total problem, but there has to be a
>starting point, so verify that calibration first and we can go from there.
>
>In case you cannot achieve a good calibration, it may be that there is a
>relay that is not operating - usually due to an unsoldered relay pin.  I
>know it is difficult to check those pins because they are under the
>inductors and capacitors, but it may just have to be done - we will see
>after you re-do the calibrations.
>
>73,
>Don W3FPR
>
>  
>
>>-----Original Message-----
>>
>>Hi gang
>>Having just finished building a KAT2  for K2 #5804
>>and I'm at the point of doing the checkout and
>>calibration prior buttoning it up. Every thing
>>checked okay until I got to POWER calibration
>>R1 & R2 when I go to TUNE my display reads
>>" 7.3F 6.8r" I also get a HI CUR displayed when
>>first activating tune. My DMM reading off of the
>>DL-1 are less than .5 vdc
>>RC kc5wa
>>    
>>
>
>
>  
>

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