Search found 74 matches

by w9ac
Sat May 18, 2019 12:52 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 12946

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: 12946

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: 12946

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: 12946

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: 12946

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: 12946

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: 12946

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: 12946

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: 12946

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
by w9ac
Thu May 16, 2019 3:15 am
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 12946

Re: Presonus Studio 192 Mobile

Received the Bodar dual GPSDO this afternoon. Setup is mostly easy but programming the frequency of the second output requires a trick that's not obvious from the installation instructions. For example, programming 10 MHz and 96 kHz simultaneous outputs isn't initially possible as the programming so...
by w9ac
Sat May 11, 2019 12:11 am
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 12946

Re: Presonus Studio 192 Mobile

Scott,

Now it all makes sense. I didn't realize the Bodnar unit had two independent outputs.

Thanks for the info.

Paul, W9AC
by w9ac
Fri May 10, 2019 1:23 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 12946

Re: Presonus Studio 192 Mobile

The Presonus 192 Mobile audio interface arrived and is now working well with my StudioLive 16R mixer under Presonus' Universal Control software. I've read through the owner's manual but I'm still at a loss concerning how Word Clock can be used with my ANAN 7000DLE and 192 Mobile. Specifically, what ...
by w9ac
Thu May 02, 2019 10:47 am
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 12946

Re: Presonus Studio 192 Mobile

Interesting, I looked through the on-line manual but didn't see the format for the clock input. Is it PPS, 10 MHz, or...?

Paul, W9AC
by w9ac
Thu May 02, 2019 1:34 am
Forum: Microphones, Speakers & Audio Hardware
Topic: Presonus Studio 192 Mobile
Replies: 46
Views: 12946

Presonus Studio 192 Mobile

I'm looking to replace a Behringer UMC2020HD audio interface with a Presonus Studio 192 Mobile unit. Since acquiring a Presonus StudioLive 16R digital rack mixer, I really like the Presonus build quality. For those of you using this device with either PSDR or Thetis VAC, have the Presonus drivers be...
by w9ac
Mon Apr 22, 2019 7:18 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: 8000DLE internal noise - (switcher?)
Replies: 7
Views: 3133

Re: 8000DLE internal noise - (switcher?)

Now that Scott was kind enough to move my post into the correct section, I can see that my 8000 is not alone in having this issue. In my case, at least the spikes are outside the amateur bands with the exception of a minor one at 14.031 . (thereabouts, it slides around) However:- the whopper at ~20...
by w9ac
Mon Apr 22, 2019 2:46 am
Forum: Thetis
Topic: Thetis QSK and the new default low-latency filters
Replies: 12
Views: 4448

Re: Thetis QSK and the new default low-latency filters

John, What you're describing shows just how good performance is with the new QSK changes. It's oh-so-simple to blank audio for a period of time in order not to deal with it. Apart from Elecraft, that's what every commercial manufacturer does. You're right about the slight ringing. My default CW filt...
by w9ac
Mon Apr 22, 2019 2:20 am
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: Anan 7000DLE Mk-II PA output.
Replies: 10
Views: 4849

Re: Anan 7000DLE Mk-II PA output.

Volker: I suspect this is just a sloppy tolerance issue with the impedance matching filter components for 17 and 10 meters. The distortion is the result of having to over-drive the PA into its non-linear region in order to increase the output. When I get a chance later, I'm going to put a scope on ...
by w9ac
Sun Apr 21, 2019 8:24 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: 7000DLE QSK Modifications
Replies: 6
Views: 2353

Re: 7000DLE QSK Modifications

Hi Paul, Have you had it on SSB yet? Have you measured PureSignal two-tone IMD performance from your LDMOS amp when bypassing the 7000 PA? 73, Bryan W4WMT Averaging about -65 dBc with PS engaged and -35 dBc disengaged. That's at 1200W from a 1500W water-cooled eb104.ru amp. I don't run it higher. M...
by w9ac
Sun Apr 21, 2019 2:14 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: Unstable, wide, nasty spur
Replies: 24
Views: 7406

Re: Unstable, wide, nasty spur

For those not seeing the wide spur on 160m with Orion MKII, expand the display a bit to 2100 kHz. Mine occurs at 2020 kHz, outside the 160m band. The root switching fundamental appears to occur at approximately 400 kHz. Switch the band selector to "L/MW." With the antenna disconnected, loo...
by w9ac
Sun Apr 21, 2019 12:29 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: 7000DLE QSK Modifications
Replies: 6
Views: 2353

Re: 7000DLE QSK Modifications

Chris, The idea for the Aromat RSD-12V relay came from the JA manufacturers that used it for T/R in several transceiver models. The initial design was developed by Panasonic/Matsushita. I typically see the Matsushita-branded relays on the used market in plastic encapsulated cases. When Aromat purcha...
by w9ac
Sat Apr 20, 2019 1:17 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: 7000DLE Tandem RCA Jack Mounting
Replies: 1
Views: 1083

7000DLE Tandem RCA Jack Mounting

The attached photo shows a set of #4 tapping screws added to hold the tandem RCA jacks in place on the back panel. Installation was very easy. A set of plastic mounting holes pass completely through. So, once the back panel is off, it’s simply a matter of drilling through the mounting holes from the...
by w9ac
Sat Apr 20, 2019 1:10 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: 7000DLE QSK Modifications
Replies: 6
Views: 2353

7000DLE QSK Modifications

I recently loaded P2 v.1.9 on my 7000DLE and it's now a real CW machine running under Thetis 2.6.5. QSK performance is awesome. A big thanks to the development team. This feature came in time for a mod I started last week and completed today. Back in 2016 I made a similar mod to a 200D. In the attac...
by w9ac
Sat Feb 23, 2019 8:15 pm
Forum: Apache Labs News
Topic: ANAN-7000DLE MKII now available without internal PC
Replies: 10
Views: 7392

Re: ANAN-7000DLE MKII now available without internal PC

The PIN diode T/R switching circuit is easily implemented. However, to do it right means upconverting +12V DC to over 100V so the receive PIN diodes can be reverse-biased during transmit. Otherwise, a high SWR at the RF output port (e.g., accidental open or short) will cause the receive PINs to cond...
by w9ac
Mon Feb 04, 2019 1:05 pm
Forum: Apache Labs News
Topic: ANAN-7000DLE MKII now available without internal PC
Replies: 10
Views: 7392

Re: ANAN-7000DLE MKII now available without internal PC

Not a fan of that case style, but wonder what they did to get to these 2 listed improvements: 2. PA board improvements for higher duty cycle, 100% ICAS duty cycle supported. 3. Tx Signal generation redesigned to improve SNR at low power levels. I don't like the larger size either, but I suppose any...
by w9ac
Tue Jul 03, 2018 11:35 am
Forum: Thetis
Topic: Thetis ETA for release ?
Replies: 30
Views: 13935

Re: Thetis ETA for release ?

>"When the last thing that is mentioned (that I've heard anyway) is that it would likely be available in a few weeks yet months later there is still nothing available... " We should always remember that the software side, and likely some or even much of the hardware development, is a volu...
by w9ac
Fri Dec 01, 2017 12:34 pm
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: 7000 fan noise
Replies: 10
Views: 4188

Re: 7000 fan noise

To me, the noise is noticeable but not annoying. It may be worthwhile looking at a premium Noctua replacement. Noctua fans are designed to produce minimum rumble and noise-generating turbulence while still providing rated air-flow volume. Last year, I replaced a very noisy cooling fan on the back of...
by w9ac
Fri Dec 01, 2017 3:46 am
Forum: Everything Else: Antennas, Relays, Switches, Power, Grounding, Cooling, etc.
Topic: 7000 fan noise
Replies: 10
Views: 4188

Re: 7000 fan noise

I noticed the same after my 7000DLE arrived today. The fan is somewhat noisier than I experience with my 200D, but I do feel more air flow coming out of the rear vent holes. Unlike the 200D, the 7000DLE's case runs much cooler during transmit and so far, shows no sign of needing an external cooling ...
by w9ac
Wed Nov 29, 2017 12:03 pm
Forum: Microphones, Speakers & Audio Hardware
Topic: 7000 speaker jack question
Replies: 3
Views: 3280

Re: 7000 speaker jack question

One option is to utilize an open collector (OC) output to control a SPDT relay with contacts in series with the speaker leads. That requires going into PSDR mRx Setup each time you want to invoke a change. I'll be adding an Arduino Nano microcontroller to my 7000DLE to minimize relay noise in CW mod...
by w9ac
Sun Nov 19, 2017 1:22 pm
Forum: piHPSDR
Topic: Bluetooth Mouse and Keyboard Sluggish
Replies: 9
Views: 6252

Re: Bluetooth Mouse and Keyboard Sluggish

The primary benefit is when the openHPSDR program isn't running. IOW, during file upgrades and other system maintenance. Before, I couldn't access the internet to download a file AND run the Bluetooth devices without the stuttering problem. I had to disable WiFi for the Bluetooth devices to operate ...
by w9ac
Sun Nov 19, 2017 5:37 am
Forum: piHPSDR
Topic: Bluetooth Mouse and Keyboard Sluggish
Replies: 9
Views: 6252

Re: Bluetooth Mouse and Keyboard Sluggish

Scott, I can confirm the external WiFi USB stick is a good solution. I purchased a TP-LINK WN725N Wireless N Nano USB Adapter, Price was about USD $10. It's a tiny USB plug with a very low profile. When the TP-LINK device is inserted in the pihpsdr's USB port, a second WiFi port is created and is na...

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