Thetis and CW Skimmer

w2gs
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Re: 2.6.9

Postby w2gs » Sat Dec 28, 2019 9:07 pm

Thetis and CWSkimmer issues


Hi Scott, Samuel and others who have commented

I will post this to the Apache forums. Here is an example of the Thetis/CWSkimmer issue.

1. All the sample rates have been set to 48K. I tried faster sample rates (results were no better) but to remove a lot of variables I used 48K for the rig, VAC and CWS.

2. In order for CWS to track the rig frequency the CWS audio IF has to be set to -600HZ. This is opposite to HPSDR where +600 HZ is used. All previous versions of HPSDR used +600Hz

3. Notice there is a solid line about 600HZ above the selected frequency of 14025.560 on the CWS waterfall. This doesn't appear in HPSDR when using Windows WDM-KS. This artifact will blot out any signal in this area.

4. Looking at both the panadapter and the CWS waterfall you can see that there are five strong signals from 14026KHz to 14030KHz but only one signal at 140295KHZ shows up on the CWS waterfall. This signal doesn't correspond to anything in the Thetis panadapter.

5. On the panadapter waterfall there is the remains of signal about 600Hz above 14025.560. This signal was blotted out by the artifact in CWS that appears at around 14026.2.

I am not sure what's going on here but I would not think there were many changes made in this area of the Thetis software since all this working properly under HPSDR, VAC and CWS. This may be a timing issue or a sample rate problem; I can only speculate. I would be happy to test any changes to the software to resolve the above problems. I know that there may be higher priority issues the developers are working on but sooner or later this should be addressed.

73, George
W2GS
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CWSkimmer1.PNG
CWSkimmer1.PNG (3.49 MiB) Viewed 1213 times
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w-u-2-o
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Thetis and CW Skimmer

Postby w-u-2-o » Sun Dec 29, 2019 3:27 pm

George,

Please post screen shots of your VAC setup and your CW Skimmer setup pages.

Thanks,

Scott
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Re: Thetis and CW Skimmer

Postby NN3RP » Tue Dec 31, 2019 11:33 am

My CWS / Thetis works without the offending line / bar across as mentioned here. The only issue that I am having is displaying the frequency (CAT settings) on CWS, however. I have tried Kenwoood, TS2000, PowerSDR with COM Pairs to no avail. Once I can have it display, I will confirm frequency accuracy on both Anan 7000dle MKII I7 and CWS.

Note: I do remember having this working perfectly with Thetis a while ago. Despite having screen shots of the past settings, I cannot make it display so far.

Never Give In, Never Give Up!
Rafael / NN3RP
Nation's Capital USA
w2gs
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Re: Thetis and CW Skimmer

Postby w2gs » Wed Jan 01, 2020 9:30 pm

With the help of Greg KC8IIR a solution was found to the unwanted artifact and missing signal problem. The VAC settings that work with HPSDR don't work properly with Thetis. Also CWSkimer settings had to be changed to reverse the waterfall display. I have attached the settings that work with my Anan 8000.

Two addition files are in a following post showing the settings of CWS. Unfortunately I must have reached attachment limit. It would have been nice to have all this information in one post but it should follow this one.

73, George
W2GS
Attachments
Thetis Audio VAC tab.PNG
Thetis Audio VAC tab.PNG (186.95 KiB) Viewed 770 times
Thetis VAC.PNG
Thetis VAC.PNG (185.8 KiB) Viewed 770 times
w2gs
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Re: Thetis and CW Skimmer

Postby w2gs » Wed Jan 01, 2020 9:34 pm

Attached are the Radio and Audio tab from CWSkimmer that are need to completely resolve the subject problem. See the previous post for VAC and Thetis settings.
73, George
W2GS
Attachments
Thetis CWS Radio tab.PNG
Thetis CWS Radio tab.PNG (38.66 KiB) Viewed 769 times
Thetis CWS Audio tab.PNG
Thetis CWS Audio tab.PNG (40.09 KiB) Viewed 769 times
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w-u-2-o
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Re: Thetis and CW Skimmer

Postby w-u-2-o » Wed Jan 01, 2020 9:45 pm

Thanks for posting this, George.
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w9ac
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Re: Thetis and CW Skimmer

Postby w9ac » Wed Jan 01, 2020 9:54 pm

Scott,

In the Skimmer setup menu, I only see sound card options for MME and WDM. Does this mean ASIO drivers won't work with Skimmer? I only see transmit profiles in Thetis so I'm assuming that a separate sound card profile for Skimmer isn't possible? Yikes, I would hate to go back to using VAC for CW Skimmer.

Paul, W9AC
w2gs
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Re: Thetis and CW Skimmer

Postby w2gs » Thu Jan 02, 2020 1:38 am

Paul,
For skimmer to work with PSDR/HPSDR/Thetis you need I/Q quadrature signals. I don't think ASIO provides that type of signal (could be wrong). The only options in skimmer are MME or WDM. If are using a non SDR like an ICOM etc. skimmer will use direct audio (WDM) but the waterfall bandwidth is limited to about 3KHZ across the waterfall. I haven't used a conventional radio for a long time but I remember the performance was not very good. I use a USB interface for SSB and just switch between ASIO and WDM. Both HPSDR and Thetis handle the switching without any problems.
73, George
W2GS
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w-u-2-o
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Re: Thetis and CW Skimmer

Postby w-u-2-o » Thu Jan 02, 2020 1:07 pm

George is absolutely correct. ASIO, and Voicemeeter, is, unfortunately, not a good solution for moving IQ data via the VAC interface. You will have to resort good old Muzy VAC.
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Re: Thetis and CW Skimmer

Postby NN3RP » Thu Jan 02, 2020 1:57 pm

To all Happy New Year!

George, can you possibly post the settings for CAT in CWS (OmniRig) / Thetis?

I am using VSPE for port creation and I can manage to interface Thetis to other software, i.e., N1MM, WSJTX, etc. but not using OmniRig.
Rafael / NN3RP
Nation's Capital USA
NN3RP
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Joined: Sun Feb 25, 2018 1:53 pm

Re: Thetis and CW Skimmer

Postby NN3RP » Thu Jan 02, 2020 10:36 pm

I have figured out why OmnyRig's CAT cannot connect to CWSkimmer so that it displays Thetis frequency read out. All it takes is the creation of a Connector and a Splitter. Additional Pairs can be added if needed for TX, i.e., PTT or CW. I used the VSPE eulation software.

In the sample picture attached, I set COM20 as the Connector. This port is set in Thetis / Setup / CAT. I also created a Split set COM20 <=> COM10. COM10 is the set that is used in all of the software, i.e., CWSkimmer, N1MM, etc.

The following picture will demonstrated all of the settings. I hope this can assist others in getting CWS to display the Thetis frequency and be dead-on spot when clicking either waterfall.

73s

CWS_Thetis_settings.jpg
CWS_Thetis_settings.jpg (346.9 KiB) Viewed 668 times
Rafael / NN3RP
Nation's Capital USA
K9RX
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Re: Thetis and CW Skimmer

Postby K9RX » Fri Jan 03, 2020 1:37 pm

NN3RP (no name at the end) ... can you provide links for these pictures please? - the pertinent ones (not sure why there is a cable/coin in the one) ... these are not readable as is.

thanks

Gary
NN3RP
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Joined: Sun Feb 25, 2018 1:53 pm

Re: Thetis and CW Skimmer

Postby NN3RP » Fri Jan 03, 2020 1:45 pm

Hi, Gary and good morning all!

The system does not allow but only three (3) pics in one shot? So I took a snapshot of all of the snapshots and the penny and cable is part of the desktop...hihi.

I will try and see if I can post pics in several posts....or link to a Word document that I've created...stay tuned!

Rafael / NN3RP
Rafael / NN3RP
Nation's Capital USA
NN3RP
Posts: 32
Joined: Sun Feb 25, 2018 1:53 pm

Re: Thetis and CW Skimmer

Postby NN3RP » Fri Jan 03, 2020 3:10 pm

As promise, here is a Word document with the main pics and notations:

Thetis Setup with Skimmer.docx
(462.8 KiB) Downloaded 29 times


or...here is a OneDrive link showing all of the snapshots taken in the production.

https://1drv.ms/u/s!Al_5NCnHQyKatBsSWk_zb1StQhRR?e=OryL47
Rafael / NN3RP
Nation's Capital USA
w2gs
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Re: Thetis and CW Skimmer

Postby w2gs » Fri Jan 03, 2020 3:32 pm

Here are my Omni Rig settings in CWSkimmer.
73, George
W2GS
Attachments
Thetis CWS Omnirig.PNG
Thetis CWS Omnirig.PNG (23.68 KiB) Viewed 610 times

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