On Mon, Aug 15, 2022 at 9:22 PM Milt <w8nue@...> wrote:
Hans,
In your design of the BPF (L12), did you assume, or measure, stray circuit capacitance?? My calculations, using a nominal AL of 4.9nH per turn squared, suggest that the capacitance values need to be 10-15pF more than the manual values.? This appears consistent with an input capacitance of 13pF on the A terminal of the FST3253. ?
Am I missing something?
Milt W8NUE
On Aug 10, 2022, at 3:05 AM, Hans Summers <hans.summers@...> wrote:
?
Hello Milt
I think there are some problems if the sweep goes beyond the specified band limits. However I have corrected this in a beta version that I am working on.?
73 Hans G0UPL
On Tue, Aug 9, 2022 at 6:39 PM Milt <w8nue@...> wrote:
Hans,
Are the frequency limits ignored during the filter sweeps?? That is, can the start frequency be less than frequency min, or the maximum of the frequency sweep be greater than frequency max as set in the band configuration?
Milt W8NUE
On Aug 6, 2022, at 11:00 AM, W8NUE <w8nue@...> wrote:
?Hans,
Thanks for keeping us posted on updates/changes.
I do have a question regarding the band configuration: since it shows a selectable Start Frequency and Step Frequency I conclude that I need to know the Default Number of Steps to be able to control the Sweep Width.? Is this correct?? Is that number about 50?
Have I missed something?
Milt W8NUE
On Aug 6, 2022, at 9:46 AM, Mont Pierce KM6WT <de.km6wt@...> wrote:
?On Sat, Aug 6, 2022 at 05:56 AM, Hans Summers wrote:
The vertical marker showing the band center went missing in version 1_04.
I noticed that for 20m the Band Sweep setting was different than 80/60/40 so I just changed 20m sweep step from 100000 to 50000 (like 40m), and the center frequency appeared.
Nice to know you're on top of it though.? I'll update to 1_05 when it's released. Each firmware release always seems to have some goodies?? hi hi
