I attended too. This guy is so theoretical it was kinda hard to put into
practical terms but I will say after reading some of his book he does
understand some novel ways to calculate what's needed for reaching lower
noise levels.
Bill
On Tue, Oct 13, 2020, 1:51 PM Attila Kinali wrote:
> On
Most Rb's have a filter prior to the multiplier forcing you to make major
modifications to the cell.
Hello Time Nuts,
Paul, I haven't gone over in fine detail of how the multipsk software is
working - so I'd like to answer with that caveat if that's OK.
I thought it was more interesting that I got anything working as far as
60kHz with my existing OpenHPSDR rig AND my default antenna.
The system
On Tue, 13 Oct 2020 12:46:46 -0500
"Bill Byrom" wrote:
> I just attended this webinar. It focused on oscillator design
> theory and the results the author had achieved for various
> specific projects. He discussed in general amplitude limiting to
> reduce amplitude noise, with the result that
John I looked at what you sent. I assume its decoding the am time signal is
that correct?
On Tue, Oct 13, 2020 at 1:19 PM Chris Howard wrote:
>
> That's a fair assessment. I'm really not very far into SDR programming,
> would like to learn more.
>
> I was working with someone who gave me a way
I just attended this webinar. It focused on oscillator design theory and the
results the author had achieved for various specific projects. He discussed in
general amplitude limiting to reduce amplitude noise, with the result that we
only need to worry about phase noise in most cases. Very
On Wed, 7 Oct 2020 10:22:43 -0400
Bob kb8tq wrote:
> People have successfully mounted eBay synthesizers in 5065’s. They work
> and it is one way to take care of that.
Some time ago, I had a "quick" look on how I would design
a synthesizer for an Rb vapor cell standard. The way I
came up with
Graham take a look earlier in the thread there are details about the
teensy. There is actually a lot of hardware out there today for little
money. Thats what makes the SDR DSP approach interesting and for me at
least the next thing to take a run at.
Regards
Paul
WB8TSL
On Tue, Oct 13, 2020 at
There are inexpensive CODECs or A-->D converters that are designed for
audio, that can be clocked up to 192 ksps or 200 ksps with 24 bit
resolution. (Typically 18 or 19 effective bits, 3.0 V p-to-p full scale)
They have built in Nyquist filters that scale with the sampling frequency,
so a Nyquist
