--- In QRPLabs@..., Hans Summers <hans.summers@...> wrote:
So it should be *050123456789AB* for the described ramp.
I've done the ramp test.
Results are here:
It only confirms my previous findings :-(
1) At one chosen frequency in 28Mhz I see 4 tones, but they done ramp.
The final one goes lower.
2) I then choose another random 28Mhz frequency up about 10Khz (not
really counting) and now I get only TWO tones.
3) A third random frequency gives me an even weirder result.
Three tones but one look like it's being split up if that makes sense.
So it does look like all the observations about not seeing certain
bit streams (I'll call them that for now) in WSPR look to be true.
I have not exhaustive tests yet but I tried -
30m, I saw four tones that seemed quite ok. Got superb on air results!
17m, I saw three tones.
10m, I saw all sorts of tones depending upon the selected frequency.
One other thing I note.
I have a frequency counter here which I use to also set up the U1.
When that changes frequency, as FSK or WSPR my counter `glides` to
the required without any problems.
The same cannot be said about the U2.
During frequency changes it has trouble keeping steady.
A sort of electronic Delirium Tremens, which probably explains the
spikes that me and Eddie see on our traces.
Hope this helps Hans.
73 de Andy
