RC-28 frequency jumps not smooth

Feature Requests
1

When I used my RC-28 connected to my Windows 10 computer via USB to Wfview, the frequency does not change smoothly as I carefully rotate the dial. It even will jump the opposite direction before correcting itself to jump the correct direction. One can see this on the frequency spectrum display in Wfview as well as hear it. I am sure I am smoothly turning the dial and it is monotonically increasing, or if turning the other way monotonically decreasing. I do not see this issue when using RS-BA1 ICOM software.

Please, can you add a feature to make the frequency changes smoother in Wfview with the RC-28 (or if a bug please fix it) ? I can think of an algorithms to perform this.

My Windows 10 computer is a Dell Lattitude 7480 with a SSD and an I7 processor, so I believe it has plenty of computational power.

2

IC-7610 over ethernet, correct?

3

My IC-7300 over USB does the same thing when using the RC-28.

4

Correct, 7610 over Ethernet

5

Here are some thoughts on fixing this jumping frequency on my remote 7610 using an RC-28.

It is impossible to physically change the dial forward and backward at the jumping I am seeing. You could add “mass” to the jumps. The rate of encoded pulses indicating a dial change should monotonically increase or decrease and transition through a stopped position before turning the other direction. Can the rate of pulses be integrated? Can you discard errant pulses that would violate the laws of physics and limitations of humans to change direction? I think you get the idea. Take a look at the timing of encoder pulses.

I need to go check and see if I have the latest version before I post some feature requests. Perhaps some of the issues I have seen have been fixed…

6

Bob,

I suspect it’s a bug we accidentally introduced. We know how it’s supposed to feel – similar to the radio’s dial.

We will make sure to get it right on version 2.0. I’m not sure if we’ll go back on older versions and fix them up or not.

What version of wfview are you using?

–E
de W6EL

7

Elliott, I upgraded last night to 1.64 and the latest daily build. The RC-28 was much smoother than with my earlier Wfview version. I will continue using but my initial assessment is that it is fixed or works well enough I didn’t notice jumping.

I apologize, I should have upgraded before posting.

I am trying to operate CW a lot now, and will be posting any issues or features I would like.

1 Like
8

I am at version 2.03 and I am still seeing this problem. This year I have set personal goals for CW QSOs and will be posting a number of feature requests. This problem is significant when operating CW and SSB when fine tuning a station.

Wfview is running remotely on a Dell Computer with an RC-28 plugged into its USB, communicating with an ICOM 7610 two floors below.

I cannot attach a IPhone video showing this issue so let me know how I can send it to you. Sometimes the problem is even worse than portrayed here.

9

Here is the termbin when turning the RC-28 clockwise at a slow rate, such as when tuning in a CW or SSB station.
Https://termbin.com/cxih\n\u0000

Note the jitters to -2 and +2.

10

image
image4032Ă—3024 3.96 MB

11

Has Elliott or another developer seen this issue? I saw some activity in RC-28 changes, perhaps a fix for fine tuning (no hangs or jumps back) using an RC-28 could be added in the next branch?

Thank you!

12

doyou see flipping between numbers, oscillating?

13

Yes, see the captured log file above and/or the picture, but I only saw it while turning the knob slowly one direction. Not while my hand is off the dial. So you know about this and have a fix?

14

you can play a bit with the polling setting to see if you can find a balance between oscillations and reaction times for now

15

I am fairly sure that this is a different issue to the rig polling one we have discussed in the past @roeland. I will be looking closer at the RC-28 protocol at some point.

Phil