Greetings,
I assume we are comparing the same part "supplier" in each amp?
One final versus two changes the beast.
Back in the day I saw a number of "equivalent" parts that never
performed the same despite spec equivalency.
The Yaesu Quadra uses Hi/Low voltage to try and keep the efficiency more
or less the same at lower power levels.
I think the unknown here is the IMD performance. I suspect the KPA's
termination is off of optimal for this reason.
YMMV
73 Mike K9MK
-----Original Message-----
From: Amps <amps-bounces@contesting.com> On Behalf Of Adrian
Sent: Monday, July 12, 2021 6:05 AM
To: jim@audiosystemsgroup.com; Amps group <amps@contesting.com>
Subject: Re: [Amps] KPA1500 Efficiency vs. RF-Kit B26
Jim, Sorry see now you have stated "using my K3/P3 with the added SVGA
output" that answers below,, that you used that on both amps.
regards
Adrian Fewster
>
> Jim, when you did the IMD3 comparison between the 1.3KFA and the
> KPA1500, was the same drive level and exact same txcr used to drive
> both ?
>
>
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