[Amps] Question about SPE 1.3K-FA amplifier

[Richard Solomon]

Life is too short to wait that long.
While folks are waiting, I'll be working
the DX.

Now let's see, when is P5 coming on again ??

73, Dick, W1KSZ

ps: My Amp should be here tomorrow (Friday).

On Tue, Nov 10, 2015 at 2:24 PM, Leigh Turner <invertech at frontierisp.net.au>
wrote:

>
> Well Dick that backorder scenario is merely an indication that folk like SS
> amps and because there's currently not many well designed high-performance
> rugged and bullet-proof SS amps in the market to compete with the early
> entrant :-(
>
> That will change...
>
> Leigh
> VK5KLT
>
> -----Original Message-----
> From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Richard
> Solomon
> Sent: Tuesday, 10 November 2015 9:31 AM
> To: amps at contesting.com
> Subject: Re: [Amps] Question about SPE 1.3K-FA amplifier
>
> Considering the 9-10 month backlog of orders, there must be a lot of folks
> who have ..."lost all their good sense"....
>
> 73, Dick, W1KSZ
>
> On Mon, Nov 9, 2015 at 2:33 PM, Leigh Turner <invertech at frontierisp.net.au
> >
> wrote:
>
> > Hi Jim,
> >
> > I fully concur with all of your points below.
> >
> > Someone would have to have lost all of their good sense to even consider
> > buying an amplifier without a complete set of detailed schematic diagrams
> > and associated Parts List. It is the ultimate insult to their customers
> > and the epitome of arrogance for a manufacturer not to do so.
> >
> > To be considerate of other band users, one would have to operate the
> > 1.3K-FA "linear" amplifier with considerable Po back-off below the amp's
> > rated  1300 Watts PEP that's well clear of its 1 dB power compression
> > point and saturated Po to yield any half-decent / semi-respectable IMD
> > figures.
> >
> > Leigh
> > VK5KLT
> >
> > -----Original Message-----
> > From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Jim Thomson
> > Sent: Monday, 9 November 2015 9:45 PM
> > To: amps at contesting.com
> > Subject: [Amps] Question about SPE 1.3K-FA amplifier
> >
> > Date: Sun, 8 Nov 2015 06:59:35 -0700
> > From: Richard Solomon <dickw1ksz at gmail.com>
> > To: Amps group <amps at contesting.com>
> > Subject: Re: [Amps] Question about SPE 1.3K-FA amplifier
> >
> > Here is a link to what looks like the Test Report for
> > FCC Type Acceptance.
> >
> > https://fccid.io/pdf.php?id=2443307
> >
> > Curious as to what folks think about the results.
>
> ##  This is almost as good as an arrl report for basic stuff.
> Their test method seems a bit flawed imo.  You can't test
> any linear amp, by stuffing a 2 tone signal into the mic jack.
> Unless the xcvr is running in class A.  In this case, the icom 7800
> used for the test, afaik, does not run class A.
>
> ##  If SPE cant / doesn't want to provide a schematic for this amp,
> or any of their other amps, I would not touch it, or buy one.
>
> ##  at least they provide imd info for imd3 to imd11.
>
> ##  The imd test is further flawed.... since they only ran the test at 1000
> w pep out.  The harmonic test was run at 1300w out.  They are also stated
> in db below pep, and not db below one tone.  So u have to subtract 6 db
> from
> all their tables. IE: their IMD3 on 7.150 mhz is a lousy -27.6 db.  (and a
> lousy -24.8 db on 160m and also 10m).  Again, re-run the test at 1300w pep
> out, and imd results will be a helluva lot worse.
>
> ##  They need to re-run the test, this time using TWO xcvrs, each feeding a
> cxr into a hybrid etc, then into the input of the amp.....and do it with
> the amp running 1.3 kw pep out.
>
> Jim   VE7RF
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