FIrst TT rig to behave like that ?
The equivalent speed of 60 wpm also seemed faster than other tests or do I
simply not remember.
----- Original Message -----
From: "Sinisa Hristov" <shristov@ptt.yu>
To: <tentec@contesting.com>
Sent: Thursday, December 25, 2003 22:10
Subject: Re: [TenTec] K2/100, Orion review
> Barry N1EU wrote:
>
> > The Orion seemed to exhibit cw element shortening, which I
> > only noticed when looking at the fuller K2 waveform next to it.
>
>
> Looks like you're right!
>
> The keying waveform itself has a duty cycle slightly offset to 52 %,
> and it produces RF duty cycle of only 30 % (22 % for the first dit).
> Shortening seems to be 8.8 ms (12 ms for the first dit).
> (Dit width measured at half amplitude).
>
> One can assume that a perfect keying input of 50 % will result
> in RF duty cycle of only 28 %, at 60 wpm.
>
> At lower speeds, say 30 wpm, RF duty cycle should increase to
> 39 % (35 % for the first dit), still quite bad :-(
>
>
> 73,
>
> Sinisa YT1NT, VA3TTN
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