On Wed, Dec 23, 2020 at 11:13 AM, Stephen Laurence wrote:
What exactly is it that is failing, as all clones seem to have the same screenshot which should be a bandpass but looks like a flat response with a kink in it.
Are the 400mhz saw filters missing?
Can they be inserted, as presumably the circuit board will have been copied from original, so presumably there would be space to insert them.
Steve,
? ?Erik spent a lot of time engineering the BPF and that knowledge cannot be copied as easily as cloning a PCB.? The tinySA hardware is not open source so I would think any cloner would have a hard time getting all the nuisances exactly right.? In addition? to the band pass filtering, there is the question of what degree the lack of shielding contributes to the performance degradation.
? If I purchased a clone I would ask for a refund, and would only do a failure analysis out of curiosity if the seller refunded my purchase and told me to just keep the clone.
- Herb
