[Elecraft] KX3 - SWR Display of "--"

[stan levandowski]

That's exactly what I experienced.  Tweaking the power level "fixed" 
 it.  I was messing at about 12-13 watts when it first occured. 
 Increased to 15 and it went away.


Don't laugh.....for a 50+ year veteran of QRP operating, it's not that 
easy to turn the knob up to 75 or 100 watts.  I have to wean myself in a 
serie


On Fri, Nov 21, 2014 at 03:11 PM, Don Wilhelm wrote:

> Stan,
>
> That indication is "normal" when the power level is too low for a 
> valid SWR computation.
> The KX3 SWR indication is used below 10 watts, but the KXPA100 
> indication is used above that level.
> It should go away if you increase (or decrease) the power a bit.  It 
> sounds as though you are operating right on that critical threshold.
>
> 73,
> Don W3FPR
>
> On 11/21/2014 11:06 AM, stan levandowski wrote:
>>  I just got a KXPA100 yesterday.  It seems to work as specified 
>> except that above 10 watts of power, the KX3 display randomly {like 
>> in "not all the time"} shows two dashes instead of the SWR.
>>
>> I do not have the internal tuner option.  I am using my SGC237 
>> autocoupler into a center fed Zepp.  My W2 wattmeter shows the proper 
>> power output and the SWR  is usually 1:1 or very close.
>>
>> This does not occur at power levels at or below 10 watts which means 
>> it's most likely not the KX3's problem but rather the amplifier's 
>> behavior.
>
>