[Elecraft] Gurus

[N4ST - Jim]

FWIW, be careful with your measurement process.
I got very depressed when I saw that my K3S had harmonics only 20db down on most bands when measured by Tiny SA and its telescoping antenna.
It was not being overloaded and in fact I measured similar results when feeding a dummy load.
Then I went outside the shack at a distance from the antennas and found that the harmonics were 40dB down or better.
Evidently when measuring inside the shack I was getting RF leakage directly through the front panel of the rig. (?).

_______________ 
73,
Jim - N4ST

-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Dave
Sent: Wednesday, June 9, 2021 23:01
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Gurus

Actually for this use they are...  Someone did a compare of the tinySA 
to an HP, and it was within a few dB as long as it was overdriven.  We 
are looking for splatter or harmonics, not doing a proof of performance.

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 6/9/21 7:10 PM, Wes wrote:
> I'm not sure those toys are up to the task.
> 
> On 6/9/2021 5:30 PM, Dave wrote:
>> Buy an attenuator, and a tinySA, or get an SDRPlay, and run the 
>> Spectrum Analyzer software.  Take a few SA shots, that will tell you 
>> if it is him, or you.
>>
>> 73, and thanks,
>> Dave (NK7Z)
>> https://www.nk7z.net
>> ARRL Volunteer Examiner
>> ARRL Technical Specialist, RFI
>> ARRL Asst. Director, NW Division, Technical Resources
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