How to finetune Thetis with your Anan or Hermes Lite 2
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- Опубліковано 8 лют 2025
- This is a instructional tutorial on how ot configure your thetis software to get the best audio quality in TX with your microphone and your setup.
Audio profiles can be downloaded here:
drive.google.c...
This Video should be seen by every Hermes HL2 user, the information you have provided is so useful, thanks and look forward to more updates on thetis settings.
After fine tunning as you instructions I imediatly start receiveing compliments about the audio. Thank you!
You said the word that scares many from using SDR radios...."extensive menus".... but once done and profile(s) created, it is like set it and forget it. From time to time needs to reset database then import back profile is a breeze. A powerful PC is mandatory as the software (Thetis) is doing the heavy lifting. A vast knowledge of Windows is also necessary as one has to accommodate it to make Thetis work. I have seen many purchasing SDR to later go back to using analog ones....It is understandable. Great video! 73s
Fantastic addition to Thetis, you should be very proud. Added a totally new dimension to a great program to begin with. Thanks so very much!
Buddy you did an amazing job , I love to see your enthusiasm my friend , please keep making videos dummy’s like me need you too
GREAT VIDEO!! Got it going and amazed with what the 5 watts can do. A tinkerers heaven!!! Explanation is invaluable for use
Hi I just bought the hermes lite2 plus and have downloaded software..if it wasn’t for your video I think it would have been out the door!! It’s working on Rx but I’ve copied your settings and will soon have a play.Thankyou and will follow the videos.Gm4zji Chris
I just used this video for my settings after taking my Anan G2 out of the box and connecting it up.
The phase rotator does make a difference in the sound quality - manipulating the positive vs negative peak symmetry. You can make asymmetric peaks more even, or (especially for AM ops) make sure positive peaks are at least as strong as negative ones.
Great Job! You answered a lot of my questions. I really appreciate your efforts. 73.
Excellent information Kurt - keep up the good work mate
Kurt, awesome video! Thank you!
If you start with Thetis, my suggestion is first bypass/disable the CFC and it's post proccessing and try only with the normal EQ and the Leveler. Audio compression is a special thing. It can make the audio better or not. Without compression we will have more dynamic range in audio generally. For me it sounds better, if you have local talk rounds. For DX a little(!) bit compression is helpful. It's a multiband audio compressor and it's setup is not so easy, because it depends from the voice of the speaker and his voice frequency spectrum. The same for the EQ. Try to setup a linerlay audio spectrum, mostly this sounds as best. The Leveler compensate the mic audio level as a AGC, which controls the audio level automaticly between minimal and maximal mic level, so we will have a nearly constant level as input for modulation and good smooth RF output in SSB. But set the Leveler not so aggressive, that we can hear "background noise".
I have done a lot of audio tests with my hamradio friends, and at the end the result was clearly - the best was bypass and not using the CFC (applies with my Headset AND my studio mic, both not the cheapest equipment, because I use it for other things too, where I need a very good audio).
73 Heiko, DL1BZ
Kurt, really great video that answered a lot of questions for me. Can you please explain how to import the Audio profile you so kindly made available? Thanks. Ken
Wonderful explaination! Thank you!! 73 - Dave, AI7R
Nice vedio , using Hermes lite2 here nice radio
learned somethings again, thx Kurt.
Very helpful do more videos. Thank You!
Aweome Job my friend.. Thanks for sharing.. 73
Very well done video. Might want to place the word audio in the title though.
Thank you very much for the nice video! Could you please explain how ( if possible ) can import the audio profiles you provide for download in Thetis? Thanks in advance and keep up!
when i change transmit profiles my drive slider doesnt change like yours.. when i check the box "Highlight TX profile Save Items" the Drive slider is NOT highlighted
It would be great if it were possible to monitor / record the audio without actually transmitting. In the past I have tried monitoring via a second receiver but never get good results and relying on over the air feedback is not reliable. Any tips?
Excellent
On the MIC levels you got two moving lines, one yellow one white. Which one for MIC?
Great video and got the levels ok but I get terrible distortion sounds like it’s clipping or overdriving but ok on other sdr software?
Awesome job...thanks
I wounder if there is any way to use thetis with rtlsdr sdrplay or hackrf
Any ideas will be appreciated
thank you very much. what is your pc configuration, (cpu)?
I can't change the size of my multi meters ?
Is this EQ even phase-linear? Otherwise, it would end up distorting the phase that the phase rotator just corrected.
I would set up the audio chain so that Thetis does as little processing as possible, delegating that to external software like Stereotool. It provides multiband compressors, AGCs, downward expanders, and auto EQ, which make everything sound much more natural, even with compression applied.
Using external software will add more delays. I prefer to use only the internal configuration settings you'll find in Thetis. You can do many things with an external audio system like cakewalk or vst, but it complicates things a lot. It is beyond the scope of my video's, so I just use the available configurations within Thetis;
@@ON7OFF Yes, there's about a 30ms delay, but it doesn't cause significant issues, not even in VOX operation. The biggest issue with these SDR transceivers is that they don't use FEC when transmitting UDP packets to the transceiver. This can lead to dropouts, but the software developers just don’t seem to understand that UDP is inherently unreliable, even within a local network. That’s why I recommend running SDR transceivers on a dedicated UDP port without any switches or intermediate devices. Even then, stable streams can often be problematic due to modern power-saving technologies constantly interfering.
Very good
Good video. Helpful, as I just acquired an Anan 100d. 73's 👍
can you ppoint out where the audio profiles location pls?
Finally got decent audio but I get a small risidual output even with no microphone connected when going into transmit - ? noisy Mic preamp in the Hermes ?
thats why i avoid such cheap mic preams and always use a dedicated soundcard. voltage regulator may be noisy in the mic preamp of the hermes.
Thanks
Anyone know how to edit the band plan in Thetis software? It isn't correct for my country.
Setup/HW select/region
@@oz457the country band plan database is incorrect. 5.365 MHz is in the legal Ham band here in Israel but Thetis shows it as General Rx. How can I fix the band plan database for my country?
Thank you! Its a big contribution for Hams. Thank you! EA5INF
Great video! de W2CSI