Search found 65 matches

by w9ac
Sun Dec 08, 2019 2:41 pm
Forum: Apache Labs News
Topic: Apache News Dec 2019
Replies: 7
Views: 537

Re: Apache News Dec 2019

Do we know why the 7Km2 has gone back in the old casing? I thought the new casing improved airflow and put the LAN connector on the back, which is what 99% of customers surely want? Having owned the 200D and 7000DLE, the latter runs substantially cooler during high duty cycle modes and I use no ext...
by w9ac
Thu Nov 21, 2019 12:00 pm
Forum: Thetis
Topic: Fun With The Greyline/Spotting Map
Replies: 3
Views: 388

Re: Fun With The Greyline/Spotting Map

Thanks, Perry. I had the alpha setting way too high.

Paul, W9AC
by w9ac
Tue Nov 19, 2019 12:21 pm
Forum: Thetis
Topic: Fun With The Greyline/Spotting Map
Replies: 3
Views: 388

Re: Fun With The Greyline/Spotting Map

Perry, Where do you see a map? I have grayline active in the spotting menu and spots are posting fine. I did find this comment from Richie but don't see a way to activate a grayline map. "Hi Tony, working here, but there could be bug/issues Couple of things to check.... - make sure Disable picD...
by w9ac
Tue Oct 15, 2019 10:52 pm
Forum: piHPSDR
Topic: piHPSDR new: P1+P2+PURESIGNAL+DIVERSITY
Replies: 9
Views: 2946

Re: piHPSDR new: P1+P2+PURESIGNAL+DIVERSITY

To help you further, you must indicate what kind of computer you are using. I have successfully compiled and run piHPSDR on MacOS (with "HomeBrew" environment for compiling RaspberryPi running LINUX (UBUNTU) Laptop running LINUX (openSUSE) DL1YCF. Christoph, I am using the Apache piHPSDR ...
by w9ac
Tue Oct 15, 2019 2:59 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: 8000DLE internal noise - (switcher?)
Replies: 7
Views: 1566

Re: 8000DLE internal noise - (switcher?)

There is a switching power supply in the 7000 MKII. It's built onto the Orion MKII card, same as it is in the 8000. That's how you get 5 and 3.3 from 12V on the card. But there is not the 12 to 50V DC to DC upconverter that the 8000 has. Well, yikes. Looks like I need to 'cruise for spikes' with th...
by w9ac
Tue Oct 15, 2019 12:08 pm
Forum: piHPSDR
Topic: piHPSDR new: P1+P2+PURESIGNAL+DIVERSITY
Replies: 9
Views: 2946

Re: piHPSDR new: P1+P2+PURESIGNAL+DIVERSITY

...then you can make the program "make -j 4" or (if you are on a Macintosh) "make -j 4 -f Makefile.mac" This should work, provided you have installed the "external" libraries such as gtk3+ etc. Beware, you have to download the WDSP library first, and compile+install. I...
by w9ac
Mon Oct 14, 2019 8:08 pm
Forum: piHPSDR
Topic: piHPSDR new: P1+P2+PURESIGNAL+DIVERSITY
Replies: 9
Views: 2946

Re: piHPSDR new: P1+P2+PURESIGNAL+DIVERSITY

On my github account github.com/dl1ycf you will find a pre-compiled binary and instructions how to load the GTK environment still needed. If you are familiar to UNIX/LINUX, you can equally well build it from the sources, also using the "homebrew" universe on MacOS. But then, you also need...
by w9ac
Mon Oct 14, 2019 10:58 am
Forum: Thetis
Topic: 2.6.8
Replies: 565
Views: 33366

Re: 2.6.8

"This is a bug in the resampler algorithm..." Thanks Scott. I'll play with larger buffer settings to see how that might affect it. I run 128 currently. I guess that algorithm is in WDSP. Joe W4WT Same here. The runaway occurs about 50% of the time when activating VAC. I now habitually sta...
by w9ac
Fri Oct 11, 2019 10:14 pm
Forum: Thetis
Topic: 2.6.8
Replies: 565
Views: 33366

Re: 2.6.8

ramdor wrote:Edit: in other words, save tx profile to make this 'stick', or at least the tx profile parts

Richie.

Working correctly now after saving the profile. Many thanks!

Paul, W9AC
by w9ac
Fri Oct 11, 2019 8:59 pm
Forum: Thetis
Topic: 2.6.8
Replies: 565
Views: 33366

Re: 2.6.8

Not sure if this has been reported... Cannot save settings after APPLY under Thetis' AUDIO and DSP tabs. After exiting and re-starting, the saved settings revert back to what appears to be default values. Same issue when trying to IMPORT from the database. Using Thetis 2.6.8, 10/07/19 build. Protoco...
by w9ac
Wed May 22, 2019 3:59 am
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Paul, I got hit with a Windows update today and almost forgot to add this cautionary note: I've had the last few Windows updates stall at restart, with the a black screen and spinning dots forever. Two updates ago I figured out that there is something about the Presonus driver that causes this. If ...
by w9ac
Tue May 21, 2019 12:00 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Bryan W4WMT wrote:Can you tell which one is creeping?

Latency from the Presonus output always remains constant (the lavender trace). But latency from the ANAN headphone jack (yellow trace) increases to the delay shown in the first set of screen captures.

Paul, W9AC
by w9ac
Tue May 21, 2019 12:56 am
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

My guess would be buffers associated with the stream to the CODEC on the SDR board are slowly filling up, whereas the buffers associated with the ASIO stream are being kept reliably empty. Thanks Scott. Perhaps a future release of Thetis could flush and refresh the CODEC buffer at periodic interval...
by w9ac
Mon May 20, 2019 8:19 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Interesting. The timing disparity between audio at the Studio 192 headphone jack and the 7000DLE's headphone jack "creeps in" with time but corrects itself by disabling, then re-enabling VAC in Thetis. Sometimes it occurs within a few minutes, other times it happens hours later. It also cl...
by w9ac
Mon May 20, 2019 12:02 am
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Well, I rebooted Thetis and now the ANAN 7000DLE and Studio 192 headphone jacks show nearly the same response time. Not sure what that was all about. Captures below. Top capture is linear phase; bottom is low latency.

Paul, W9AC


SDS00004.jpg
SDS00004.jpg (107.3 KiB) Viewed 2437 times
by w9ac
Sun May 19, 2019 11:51 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Paul, Interesting experiment: Without changing any of your settings from above, remove the 48kHz word clock going to the Presonus and see what that does to your hourly overflow underflow count. 73, Bryan W4WMT Bryan, If I pull the 48 kHz clock cable between the GPSDO and Presonus 192, then the Pres...
by w9ac
Sun May 19, 2019 11:35 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

You save at least 10ms in both TX and RX directions when using a low latency filter of any size compared to a linear phase filter of length 2048. With some time to kill this afternoon, I measured CW latency of the CW side-tone in Thetis' new QSK mode. In the screen captures below, the first set is ...
by w9ac
Sun May 19, 2019 8:19 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

That's fabulous, Paul! And it really demonstrates the big difference that ASIO drivers and hardware can make. Were you also using the low latency filter settings? Yes, although the linear phase setting with a 64/2048 filter size produces similar results with extremely low latency. I do see some ran...
by w9ac
Sun May 19, 2019 6:22 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

w-u-2-o wrote:Paul,

There is no sidetone via VAC. I am curious what you are hearing. Are you using PowerSDR or Thetis? If Thetis, do you have QSK turned on?

73,

Scott

Yes, QSK is engaged in Thetis and VAC is active. So, the CW side-tone comes from the receiver and not the side-tone generator.

Paul, W9AC
by w9ac
Sun May 19, 2019 12:46 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Been operating CW this morning while listening direct from the Studio 192. Latency is so low that I can send CW without any ear-to-hand timing errors. As soon as the key's contacts close, the side tone is right there. Quite amazing. This was simply a test; I normally monitor from a Presonus StudioLi...
by w9ac
Sat May 18, 2019 1:34 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Bryan W4WMT wrote:Paul,

Not if you have already tried force = 1 on the resampler controls.
I assume you did, so that’s about it.

73, Bryan W4WMT

Better with Force engaged with 1/1 selected but I still see a few over/under flows long term. Not sure how serious that is.

Paul, W9AC
by w9ac
Sat May 18, 2019 12:52 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Bryan W4WMT wrote:Hi Paul,
On a well pacified PC your ”Ringbuffer” latency settings should be able to run lower than 10ms. But now we’re splitting hairs :-)

73, Bryan W4WMT

Bryan,

10/10 ms on RingBuffer is as low as I can go without overflow error. Any other tweaks possible?

Paul, W9AC
by w9ac
Fri May 17, 2019 10:53 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Paul, You are on the right track! As Bryan has explained before, the Portaudio settings are meaningless for ASIO and should be set to zero when using ASIO. The next and last order of business is to see how small you can get the buffer latency settings. I have mine set to In 5 and Out 3. Also, I was...
by w9ac
Fri May 17, 2019 7:08 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Bryan, That works and now the Buffer Size moves lock-step between the Studio 192 and Thetis. However, I tried setting all four wheels to zero but got Over/Under counter overflows. Next, I left Port Audio at zero, but put the Ring Buffer on Auto (i.e., boxes unchecked). See below. Var Ratio stays VER...
by w9ac
Fri May 17, 2019 4:01 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Maybe there’s a setting in the Presonus’ ASIO control panel that enables it to accept block size changes from the host application? Failing that, can you manually set the block size in the ASIO control panel? 73, Bryan W4WMT Unfortunately, no. The Presonus control panel has no manual override. Ther...
by w9ac
Fri May 17, 2019 1:34 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

The next step for you would be to check the Force boxes and prove to yourself that the radio and the Presonus are indeed synced (evidenced by the over/underflow counters staying at zero indefinitely). 73, Bryan W4WMT Yes, I can confirm that counters remain at zero when "force" is checked ...
by w9ac
Fri May 17, 2019 10:44 am
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Bryan, attached below. I am not convinced the Var Ratio should be 1.0 when using a common clock in this case. Because of the large frequency disparity between 10 MHz and 48 kHz, coaxial cable length will affect pulse timing between the two outputs. However, that timing error should remain constant f...
by w9ac
Thu May 16, 2019 11:54 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Scott, That fixed it. Thanks for the link. To answer your question, Var Ratio stays at exacty 1.0 when i use the Windows WDM driver. However, then using ASIO and the the Studio 192 inputs and outputs, Var Ratio hugs very near 1.0 but bounces around a bit at 5th and 6th decimal places. The Bodnar GPS...
by w9ac
Thu May 16, 2019 9:18 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

Well, after switching between audio drivers, I now get the error message below. I tried rebooting both the PC and ANAN 7000. No luck. I then removed Thetis from Win10 and tried to re-stall. Still get the fatal audio error message at start-up and Thetis won't load. So, how to clear this fatal error a...
by w9ac
Thu May 16, 2019 2:08 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 5835

Re: Presonus Studio 192 Mobile

w-u-2-o wrote:Is it working well, Paul? Does the resampler Var ratio stay at 1.0?

Well. I still have to make a new BNC jumper for the second output. I'll try it this weekend and report back.

Paul, W9AC

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