There could be two different problems going on here: 1. The ANAN is not locking to the GPSDO. - This could be a small matter of jumper settings. How are your clock related jumpers set up on you ANAN-100? - It is better to test this by splitting the output of the GPSDO and using the same signal as bo...

Jim, You will love the VOX. It is the crown jewel of the audio suite. It is the only VOX available with the look-ahead feature so that you don't lose the first syllable. The side-chain trigger lets you pick the dominant tones of your voice so that nothing else in the shack triggers it. Since every p...

So probably not amp dependent, then.

Still can't duplicate your problem

What amp are you using?

I'm using an Elecraft KPA500.

I wonder if it is somehow amp-dependent.

The only mapping file I have available is for a Hercules DJControl Compact. Which Hercules controller did you order?

Scott, this is strange. With VAC enabled with and DEXP enabled no spike. That's what I was afraid of. That somehow the audio look ahead delay line has garbage data in it when the TX audio source is the ANAN hardware CODEC, but with VAC it is fine. While this is by no means proof of that, it implies...

Ruben, There's another thread dealing with this same problem. It's been suggested there that a) this problem is related to the use of DEXP and b) the RF delay can be set to around 35 or 45ms to work around (I would not say "solve") the problem. Does any of this apply to your problem?

The short answer is "no". There is currently only the ability to control button lighting, and even that is not fully implemented, i.e. if you change a control using MIDI and the lighting codes are properly set up the lights will track the state of the function, but if you change that setti...

I don't know if you can do this experiment, but if you can: does this also happen to you when you source audio via VAC?

Unfortunately I can't do the opposite experiment and not use VAC because my station is remotely operated.

And what version firmware, specifically?

@rbduck

Revisiting this problem of the noise burst: have you tried upgrading to the latest P2 firmware? See this topic:

viewtopic.php?f=32&t=3192

That's not a solution. That's merely a part of the same mystery. There should be absolutely no reason to run such an obnoxiously high delay. It would drive me crazy if I had to. My delays are set to minimum and, again, no problems here.

Are you running Protocol 1 or 2 firmware?

That's very strange. I cannot duplicate that problem. I normally run vox with the look-ahead and a 250ms release time, too.

If you are only using DEXP and not VOX it probably shouldn't matter, but try setting your Anti-VOX gain to -20 and enabling Anti-VOX.

You did not say if you are using VAC for TX, RX or both. Are you?

These are the settings I use. Obviously your COM port setting may vary...

Jim,

Post your DE settings. Perhaps there is something that can be fixed. Because I can't think of anyone else with this problem.

Also, are you using VAC?

73,

Scott

Thank you!

Here you can find information about a Thetis extension. https://saure.org/cq-nrw/2021/02/27/thetis-v2-8-11-16711-special-edition-se-64bit-ein-beitrag-aus-dem-forum-von-cq-nrw-von-alex-dl1kd/ https://saure.org/phpBB_04/viewtopic.php?f=80&t=491 73 Joerg, DD8JM Joerg, Interesting. Do you think you...

Perry, As far as I know, currently there is no one working on further Thetis development at this time. Remember that Thetis is an open source development created by volunteer developers (not Apache). Unless and until another developer becomes interested, no further development of any kind will occur...

Contacting Doug or Apache is probably your best bet.

Or perhaps someone like Kjell @LA2NI might be able to tell you how to wind a new one from scratch.

How does that meet your requirement, Mike? All you need is the disable PTT part.

In fact, why not just use an external switch? Or an external switch controlled by an OC output. Or an external switch controlled by a DDUtil macro button.

What do OC outputs have anything to do with this issue?

The other thing to consider is that this setting is much less important on transmit. As mentioned above, at 1024 the skirts are already much steeper than any other radio out there save the Flex. You are not going to look or sound bad at 1024 transmit. So you can knock that setting down to minimum on...

Gents: please let us all know what was broken when you find out. This way we can start to identify any trends.

Buffer size should have nothing to do with this issue. It would be good if you would confirm that is the case. What this is really about is the transient response of the filter skirts. This is not ringing per se, but it is a time domain, transient response issue. There are three things that cause tr...

Mike, If you've been following the above examples, in every case the problem was a hardware failure of some sort. N4XD did not report a lower noise floor, he reported lower signal levels. Is that what you are seeing? Assuming you've done your part in identically configuring both paths in the softwar...

A quick Google search turned up this person: https://hammadeparts.com/ Couldn't tell you if he's good, bad or indifferent. Edited to add: you might also try reaching out to local hams or clubs. With your guidance perhaps someone close to you could come over and help you construct the cable you need....

You will probably have contact Simon Brown, the author of SDR Console.

I don't know, but I can tell you that on one of my projects we just ordered production quantities of Xilinx Kintex Ultrascale FPGAs and deliveries are running 52 weeks out

I'd buy one in a second if it had remote control over the network. I asked him if it was planned for the future. Unfortunately it is not.