Re: [Elecraft] KX3 IMD vs DC input, using built-in 2 TONE

2016-06-12 Thread Bill Conkling
endently adjustable external audio tone generators, or with a > math package. > > -Original Message- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Erik > Basilier > Sent: Sunday, June 12, 2016 2:56 PM > To: Elecraft@mailman.qth.net > Sub

Re: [Elecraft] KX3 IMD vs DC input, using built-in 2 TONE

2016-06-12 Thread Erik Basilier
016 3:11 PM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 IMD vs DC input, using built-in 2 TONE Of course, I don't mean that the nature of the 2 tones affect the IMD characteristics of the hardware. Rather, what I meant was: "if one measures IMD with a standard 1:1 ampl

Re: [Elecraft] KX3 IMD vs DC input, using built-in 2 TONE

2016-06-12 Thread Wes Stewart
Can't speak to the KX3, but for a K3(S) the mic gain equalizes the two tones. On 6/12/2016 2:53 PM, Erik Basilier wrote: I am testing my KX3 / KXPA100 combo, looking at TX IMD and power output depending on the DC power supply characteristics. I am experimenting with a N8XJK Boost Regulator (40A

Re: [Elecraft] KX3 IMD vs DC input, using built-in 2 TONE

2016-06-12 Thread Erik Basilier
June 12, 2016 2:56 PM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 IMD vs DC input, using built-in 2 TONE One more question: Assuming that the 2 tones are about 2:3 in amplitude ratio, can anyone say how that would be expected to affect the 3rd order IMD figures? From: Erik Basilier

Re: [Elecraft] KX3 IMD vs DC input, using built-in 2 TONE

2016-06-12 Thread Erik Basilier
One more question: Assuming that the 2 tones are about 2:3 in amplitude ratio, can anyone say how that would be expected to affect the 3rd order IMD figures? From: Erik Basilier [mailto:ebasil...@cox.net] Sent: Sunday, June 12, 2016 2:53 PM To: 'Elecraft@mailman.qth.net' Subject: KX3 IMD vs

[Elecraft] KX3 IMD vs DC input, using built-in 2 TONE

2016-06-12 Thread Erik Basilier
I am testing my KX3 / KXPA100 combo, looking at TX IMD and power output depending on the DC power supply characteristics. I am experimenting with a N8XJK Boost Regulator (40A max) as well as an Astron linear supply adjusted down to low voltage, simulating a run-down battery. To judge IMD I use