[Amps] ALC Overshoot FTDX-5000

[Joe Subich, W4TV]

 > But It measures a single dit at 60 WPM CW just fine.

Not probative - a single dit at 60 WPM is 24 msec.  "PARIS" is 42 bit
(dot) periods ... 1/42 => 24 ms.

Now, if you tell me the Powermaster can measure a single dit at 600
WPM, I will accept it as a reasonable measurement of "overshoot".
Otherwise, the measurement is simply the average power over the dit
period and a 15% "overshoot" could indicate 100-150% real overshoot
for 2 ms out of a 25 ms period.

I'm not saying that's the case, simply that Powermaster is not a valid
tool on which to base the claim of "no overshoot".

73,

    ... Joe, W4TV


On 8/13/2012 9:57 PM, Jim W7RY wrote:
> Not sure. But It measures a single dit at 60 WPM CW just fine.
>
> 73
> Jim W7RY
>
>
>
>
> -----Original Message----- From: Joe Subich, W4TV
> Sent: Monday, August 13, 2012 6:12 PM
> To: amps at contesting.com
> Subject: Re: [Amps] ALC Overshoot FTDX-5000
>
>
> What is the time constant of the Powermaster?  Then only clear way to
> measure the sub 5 ms spikes is with a scope.
>
> 73,
>
>     ... Joe, W4TV
>
>
> On 8/13/2012 8:56 PM, Peter Voelpel wrote:
>> That is no ALC overshoot, but the breathing power supply
>>
>> 73
>> Peter, DJ7WW
>>
>> -----Original Message-----
>> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
>> Behalf Of Jim W7RY
>> Sent: Dienstag, 14. August 2012 02:46
>> To: AMPS
>> Subject: [Amps] ALC Overshoot FTDX-5000
>>
>> I thought you would like to know what a friend of mine found on his new
>> (less than 1 year old) FTDX-5000 for ALC overshoot...
>>
>> Setting the power out to 25.5 watts the overshoot reached 26.9
>> amounting to
>> 1.4 watts overshoot Both cw and rtty came up the same.
>>
>>
>> Using 101 watts the overshoot reached 104
>>
>> He used a Powermaster and a dummy load.
>>
>> 73
>> Jim W7RY
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