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Re: [Amps] SPE 1.3K-FA and FTDX-5KMP

To: amps@contesting.com
Subject: Re: [Amps] SPE 1.3K-FA and FTDX-5KMP
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Sat, 14 Nov 2015 09:23:02 -0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
On Thu,11/12/2015 11:23 AM, Richard Solomon wrote:
What would folks think about running the FTDX-5KMP
in Class A to drive the SPE Amp ?

I measured occupied bandwidth of an FTDX5000 after the Sept 2014 firmware update in both normal and Class A modes. The FTDX5000 is pretty clean on SSB either way, Class A is only slightly better. It's wide on CW, mostly due, I believe, to carelessness about keying waveshape and to the overly fast keying slope.

Measured data is here. http://k9yc.com/FTDX5000_Report.pdf

73, Jim K9YC
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