Re: [TenTec] Corsair II knobs ?

[Patrick <flymooney@gmail.com>]

I'll second what Barry said. I had a DDS in a Corsair II and ended up 
pulling it all back out after a few weeks. It wasn't really 
"objectionable" but it was definitely noticeable and thus, objectionable 
to me. YMMV
Patrick
K4PNR


On 6/12/2018 4:47 AM, Carlos wrote:
> Hi Barry,
>
> You are absolutely right. I have been using the Corsair to monitor
> local traffic in 40 meter, where signals are so strong that any
> off-frequency parasitic response due to the spurious tones generated
> in the DDS seem to be negligible.
>
> What I'll do next weekend is to make proper screen captures of the
> spectral distribution of the 5 MHz PTO Vs. the 5 MHz DDS. The stuff I
> have at home does not have much dynamic range (probably 75 dB at
> best), but I'm sure that the differences are easy to notice.
>
> 73,
> Carlos VK1EA
>
>
>
> On 6/11/18, Barry N1EU <barry.n1eu@gmail.com> wrote:
> > FWIW, the PTO has a MUCH cleaner spectrum - noticeably lower transmit and
> > receive spurs.
> >
> > You can easily see this if you put the PTO vs. DDS Corsair in transmit mode
> > and look at the signal on an SDR.
> >
> > Barry N1EU