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Re: sBITX


 

Yes, Raj, I remember that..
The raspberry pi zero is probably running out on the FFT routines. The UI thread does nothing until something is physically? touched or changed.?
One option is to use the FFT function of the raspberry pi GPU. The library is already on the? new distributions.
- f

On Fri, Jul 30, 2021, 11:23 AM Raj vu2zap <rajendrakumargg@...> wrote:
I've built very similar circuits.. standard low noise input preamp for magnetic cartridge in vinyl record players. Only
difference is that there are some additional components for RIAA compensation.

You may remember I mentioned you try this many moons ago! in place of Q70.

Cheers Farhan
Raj

At 30/07/2021, you wrote:
I am glad that it works. The audio amplifier for sbitx class of radios needs to have a strong signal handlig capabilities as well. I suggest you hear over to and duplicate the audio fba amplifier. It is a simple but brilliant design. Thats whats in the sbitx now as well. In fact, I pushed wes to get it on the website!

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