> The AD9834 DDS that it uses is definitely capable of FSK and
> PSK, but both the FSELECT and PSELECT lines of the chip are
> grounded in the K3, so I have a sneaky suspicion that the rig
> might be a Keyed AFSK rig.
I suspect Lyle is generating both PSK31 and FSK in the DSP and
not creating external audio.
73,
... Joe, W4TV
> -----Original Message-----
> From: rtty-bounces@contesting.com
> [mailto:rtty-bounces@contesting.com] On Behalf Of Kok Chen
> Sent: Tuesday, January 06, 2009 6:03 PM
> To: RTTY Reflector
> Cc: Ian White GM3SEK
> Subject: Re: [RTTY] K3
>
>
>
> On Jan 6, 2009, at 2:17 PM, Ian White GM3SEK wrote:
>
> > Do you have comparable measurements of spectrum occupancy
> when the MP
> > and K3 are keyed by direct FSK?
>
> No. I haven't used FSK for many moons now, Ian :-)
>
> I haven't check closely before, but doesn't the K3 use Keyed AFSK
> instead of Direct FSK?
>
> The AD9834 DDS that it uses is definitely capable of FSK and
> PSK, but
> both the FSELECT and PSELECT lines of the chip are grounded
> in the K3,
> so I have a sneaky suspicion that the rig might be a Keyed AFSK rig.
>
> 73
> Chen, W7AY
>
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