OM,

I have an early one (ordered on the first day they were offered for sale) and a late one delivered in mid January. They have different handle sizes! You may want to consider waiting until you get yours before buying the custom cover.

73, Bryan W4WMT

I don't know how to send I/Q samples at the rate that the DUC consumes them, to avoid FIFO over- or under-flow. I see occasional brief damage in the transmitted signal, probably as a result of a FIFO error. I'm generating the samples from FT8 software, not from the ANAN-100D microphone, so there's ...

OM,

That's a potential feature which is in the very early testing phase. If interested, please email me at my QRZ listed address with the name of your ASIO sound device/driver.

73, Bryan W4WMT

Is it safe to assume the R-SPK and L-SPK 1/4" jacks are the speaker outputs for the powered speakers? Hi Butch, The 1/4" jacks you mention above are strictly for non-powered speakers. For your powered speakers you will want to use the 3.5mm stereo headphone jack on the front panel. 73, Br...

I know this is kind of subjective, but for me the minimum phase filters sound slightly harsh. But the linear phase filters sound like "butter" :-) The good news is that, for lower filter size settings (e.g. 2048), there is very little latency penalty for using linear phase. 73, Bryan W4WMT

w-u-2-o wrote:Note that the mic bias voltage is 3/4 x 3.3V, or 2.475V.

Scott

I think that's just a bit of leakage current. With "Bias" turned off, a 1 meg resistor pulls it down to just a few mV.

73, Bryan

rbduck wrote: What I thought was amazing was the it left India on Monday morning and was on my bench in Tennessee Wednesday evening.

Now that's weird. Mine came from Australia, VK3 to be exact.

73

Dear Scott, Do you have access to a USA phone number for Apache? I have sent them 3 emails concerning repair NO response! I registered at their site ,they were going to send password,hasn't happened.Do you know of any reputable repair service ? I love the radio and don't want to return to Flex,but ...

Run AM with your desired sideband selected in Setup\DSP\AM.
Set your AM carrier level in Setup\Transmit.

73

w-u-2-o wrote:That graphics card is overkill.

I still recommend an eight core processor for any new build.

Can't stress this enough.
Thetis is a core-hungry animal.
Far more important than any video card choice.

73

w-u-2-o wrote:Vsync works with video driver and automatically sets the frame rate to the same as your monitor. IMHO there is never any reason to turn it off.

Thanks! You should be writing these tooltips instead

What does VSync do actually?
The tooltips on that control just says "1 frame Vertical Sync ...."
Can someone please explain what that means?

73

So far I've been unsuccessful in getting a build to complete. Always fails. Pretty sure I am missing a module in Visual Studio. The error is VCTools. I thought this was for C++ but I have that module installed. Ron N4XD Hi Ron, Can you get Thetis to build using a perfectly "clean" clone f...

Voicemeeter ASIO drivers used with a Presonus Studio 192 Mobile, 128 bit Word-locked to a 48 kHz Bodnar GPSDO clocking source. Same source used for the 10 MHz external reference. Paul, W9AC Hi Paul, Just curious, why do you use Voicemeeter between Thetis and your Studio 192 Mobile? 73, Bryan

Dear friends, In Setup/Audio/VAC1, Direct I/Q box, what does "Use RX2" do? Michael In OpenPowerSDR it used to select the RX2 IQ stream, instead of the RX1 IQ stream, for output through VAC1. In Thetis I don't believe the ChannelMaster was ever hooked up to this Setup control. It appears t...

Thetis V. 2.8.11 Issues: -Still VAC audio lost when switching sample rate. OFF/ON required to recover audio (region is Spain and extended option is checked). This is not limited only to VAC audio. RX audio from the hardware CODEC (in the radio) is also lost upon changing F/W Set RX1 Sample Rate. To...

W9IP wrote:.....I had to add ASIO4ALL and of course go through VoiceMeeter Banana. ASIO4ALL is basically transparent and VoiceMeeter Banana just mystifies me. .......
Michael, W9IP

I understand why VoiceMeeter is needed, i.e. to patch PowerSDR & MAP65 together. But why ASIO4ALL?

73

I posted this in a different thread but I suspect I should have posted it here... VAC1 is stable on v2.8.8 but I'm getting crazy runaway Underflows on VAC2, nothing I change on buffers, sample rates or Force even slows it down. This wasn't happening before, including in yesterday's v2.8.7, so I sus...

VAC1 is stable on v2.8.8 but I'm getting crazy runaway Underflows on VAC2, nothing I change on buffers, sample rates or Force even slows it down. This wasn't happening before, including in yesterday's v2.8.7, so something has changed in v2.8.8. Hi Mark, Was your RX2 running at the time? If not, I b...

Hi Enzo, The solution file in "Thetis\Project Files\Source" should load the PortAudio project along with all the other projects automatically within VS2019. The dependencies are wrong I think. Just remember that ChannelMaster depends on WDSP and Thetis depends on ChannelMaster. 73, Bryan W...

Yeah, you're not wrong, most people don't even notice it though. The MON system is a bit crude, in that what you are listening to is the complex baseband (I/Q) signal being sent out to the DUC in the radio hardware. So it's not real audio per se. Somewhere in the bowels of this forum is an erudite e...

Don't know what the design level is, but a TTL square wave works fine here.

73, Bryan W4WMT

Hi Mark, WASAPI is trapped out in the code and not shown in the VAC1 ComboBox on purpose because the latency is so bad (~30ms) in shared mode. PortAudio doesn't work correctly with WASAPI in exclusive mode (which is very fast, but badly distorted). The PortAudio guys are currently trying to address ...

Anyone notice the extra -20db line in the attenuator settings? I am running 2.7.0 A3, P2 v1.9 on 200D .24. I reset the data base just to be sure but it is the same. Don W9BHI Hi Don, Before Scott kicks this thread off the topic, let me just comment: The Orion SDR board and the 200D PA board both ha...

DAC out?
Interesting.

(By the way, I monitored for under- and underflows with the Force checkboxes checked. The Var Ratio numbers stayed very close to 1; i.e., >0.99 and < 1.01. Under and overflow numbers stayed at 0. No audible glitches on RX or TX.) 73, John Hi John, The "silver lining" here is that your SDR...

Come to think of it, I cannot remember what the DDC assignments are in P2/Thetis and a quick forum search did not turn up much. Is that documented anywhere?

73

w-u-2-o wrote:If you get a big enough interruption in the network it will cause Thetis to go into a "stopped" state. Pushing the "power" button should make it go again.

The Network Watchdog won't kick it back into gear, Scott?

Hello Richie , Is it possible to repair the Mic slider (Main Gui) and Mic/Gain/Sources (Setup>General>Transmit ) so they operate in VAC1 . I miss that feature which was operational in MRX. Hi Gary, The console's MIC gain slider has never been operational in VAC1/VAC2 for either OpenHPSDR PowerSDR o...

I know zip about WSJT, but if it's sending full-scale samples to VAC1 in stereo that could be a problem. The stereo samples get summed arithmetically before being sent along to the transmitter. You could try disabling "Stereo" in the VAC1 setup form, in which case only the left channel is ...