[Elecraft] KX3 Question on S-Meter Calibration

[Brian Hunt]

I thought I understood this but appears that I had it wrong.

 According to the SMTR calibration procedure, it is set with the PRE on and ATTN off. Calibration sets a 50uV signal to S9 and a 1uV to S2-S3.  See this in the Calibration Procedures section of the manual (p51 in my 2009 version). 

I’ve been using the SMTR ABS mode ever since I discovered it. YMMV

73,
Brian, K0DTJ

> On Oct 10, 2022, at 14:05, D Remy <drh at dremy.com> wrote:
> 
> Does that also apply to the K3?
> 
> David R Hourdequin, PE 
> 828-421-6216
> 
>> On Oct 10, 2022, at 14:20, Don Wilhelm <don at w3fpr.com> wrote:
>> 
>> Greg,
>> 
>> The KX3 is designed around having the preamp on most of the time.
>> 
>> 73,
>> Don W3FPR
>> 
>>>> On 10/10/2022 1:58 PM, WA1JXR ALGIERI wrote:
>>> I have noticed with my KX3 that the S-Meter is not calibrated that is 50 microvolts (-73 dBm) at the antenna connector equals a S9 signal only when the preamp is turned on. Is this normal and the way the KX3 is designed?
>>> I thought it might be with the preamp off.
>>> 
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>> 
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