Some meter jitter is normal, but not 10%. It seems to be an artifact
of the ADC - number crunch - DAC process. I wonder if v2 will address
this. I did not see much if any "real" fluctuation in output power.
See videos at http://www.aa6e.net/aa6e/orion_pwr.html .
73 Martin AA6E
On 12/2/05, Torrey Mitchell <torreym@mchsi.com> wrote:
> I turned on my Orion this evening after about 4 months. I felt a
> little rusty using the controls. I went to tune up a linear
> amplifier and first noticed that the power output was
> fluctuating. Every second or two the power will decrease something
> like 10-20% and bounce right up to normal. There is no regular
> rhythm to it. The ALC LED is observed to go off when the power
> drops. The power output is a full 100 watts. The fluctuation occurs
> at any power level. It occurs in both the tune position and if key
> down in the CW mode. I think it must be a new phenomenon since I
> don't recall seeing it before; and it plays havoc with trying to tune
> the linear amplifier (which I surely would have noticed). No
> difference with the linear turned off.
>
> The ALC LED going off with each power dip must be a good clue to what
> the problem might be. But I'm "clueless". I did a master reset with
> not change. I substituted another 13.8v, 30amp power supply with no change.
>
> So, what's going on here? Is a trip back to Tentec the only option?
>
> Many thanks,
> Torrey N9PY
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>
--
martin.ewing@gmail.com
http://blog.aa6e.net
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