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Maestro performance

DL4RCE Member ✭✭✭

Dear Flexradio team,

for some years I do have the Maestro B model, it is a very unique feature that let me love the overall SmartSDR performance. In between I was not really satisfied with the performance due to audio lag&quality (described many times in the forum). For me it was basically only usable as a control device for my SmartSDR instances. Since audio was delayed contesting was hardly an option so I changed to MacOS/iOs for audio only.

I was really hoping that Flexradio kept the promise to adress those problems. Therefore I was really eager to install the 3.4.21 update. First testing was good but wanted to wait for 1-2 contests if performance is back to what I was used literally years ago.

And it did not disspoint. The performance is simply amazing. Audio lag is back to a level which is about the same on my Mac & Win client, the "crackeling" noise is gone to 99%. I immedeatly simplified my setup and did voice/keying only with the Maestro.

I bought the 6600 years ago and upgraded a Meastro B, TGXL, PGXL and AnetnnaGenius. I do have a competitive adavantage over my competition in contests, my results are as good as they can get considering my location & antenna setup. Shortwave, EME (Transverter Q5), Digi Modes (SDC skimmer, etc.) work flawlessly and make a lot of fun.

I want to thank Flexradio for providing such a great package and seemless integration of components. In addition many thanks for your continious efforts to make this the leading platform.

Hear you in the next contest!


  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin

    Thanks Volker

    I shared your comments with the entire company and it was very much appreciated.


  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin

    To add more to this, I was doing some A/B testing on 10M today.

    I was running my 6600 remote via SL on 10M and listening locally on an IC-7300 that I was using to test with the Tuner Genius XL.

    The audio latency was almost non-detectable and this was on SmartSDR 3.4.21.

    You can see the RTT time as 31ms. That is Round Trip Time!

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