[AMRadio] Bugged by CW?

[Bernie Doran]

Hi Rob: I was using it in the AM position with audio of course turned off 
and yes it wandered all over. Then I wondered why I was doing that and 
placed it in CW and surprise it became stable. It seems to sit at about 60 
watts out for hours.  I have no idea why!!! If you can not use that much 
power, someplace in the hundreds of menues the max powr out can be set much 
lower. I would hope that that also means that the power control still 
operated over its full mechanical range and thus MIGHT be stable at the 
lower level.  I have never noticed any big output jump when turning it on. 
Now, I am driving the 833As into class C plate modulated, they are not used 
in linear mode, so a little change in output has no effect on operation, 
plus I hit the big guys pretty hard, about 150 ma of grid current.    I have 
heard some stories about the ALC when driving a linear for AM, not sure what 
that is about. if that is what you are doing, perhaps you can kill the ALC. 
I also fooled with the link coupling to get about a 1.5 to 1 SWR. 
Bernie----- Original Message ----- 
From: "Rob Atkinson" <ranchorobbo at gmail.com>
To: "Discussion of AM Radio in the Amateur Service" 
<amradio at mailman.qth.net>
Sent: Thursday, January 19, 2012 1:13 PM
Subject: Re: [AMRadio] Bugged by CW?


Hi Bernie,

What power output do you have the 1000MP set at, for use as a driver?

Do you find it unstable, i.e. does the power output vary over time?
Do you notice a big increase upon keying the box into transmit then it
drops off?  I notice this with mine but I have been told (not by
Yaesu) it is a design flaw and they all do it.  My fix will be to quit
using it.  Not being able to fix any of the modern stuff is part of
what's driving me to vintage gear.

73

Rob
K5UJ

On Thu, Jan 19, 2012 at 11:16 AM, Bernie Doran
<qedconsultants at embarqmail.com> wrote:
> Well I have now found the perfect cure for my FT1000mp-Mark V POS. no more
> horrible cross modulation, no more terrible noise blanker, no more
> ineffective DSP ( what ever that is) no more poor sounding audio, no
> strange signals that are not there on other receivers. ETC ETC. It now
> serves as the driver for the 833As. I was also pleased to learn after I
> bought it that the arrl somehow left out all of that info in the test
> reports. Also learned that it currently ranks as number 1 for key clicks!!
>
> I dug out my SDR-IQ and have it hooked to this computer to check the bands
> before heading to the garage, where my station, AKA debris pile is 
> located.
> It is amazing what some of the CW signals look like, a significient 
> number,
> probably 25% simply look fuzzy, SSB frequently have poor sideband 
> rejection
> and splatter extending for many KC. I actually saw one that had splatter
> from his freq ( 3608) extending up to the 3.8 range. amazing!!!
>
>
> Bernie
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