Then, an easier way; 2x SDR boards (Hermes, Orion, etc.), sharing clock, in same enclosure, let´s say back-to-back.
This way you get two coherent boards, with two coherent receivers and two coherent transmitters, starting point for beamforming.
GPS is not mandatory.
Search found 5 matches
- Sun Jan 28, 2018 3:36 pm
- Forum: Diversity Operations (PowerSDR & Thetis)
- Topic: Diversity Operations
- Replies: 53
- Views: 115259
- Fri Jan 26, 2018 10:15 pm
- Forum: Diversity Operations (PowerSDR & Thetis)
- Topic: Diversity Operations
- Replies: 53
- Views: 115259
Re: Diversity Operations
That is why both ADCs need to be clocked from the same sample clock, and clocked at the same time, i.e. there should be no differential delay between samples. So, there isn´t any way to clock two separated SDR ? Perhaps.... a NCO ? https://en.wikipedia.org/wiki/Numerically_controlled_oscillator
- Fri Jan 26, 2018 5:54 pm
- Forum: Diversity Operations (PowerSDR & Thetis)
- Topic: Diversity Operations
- Replies: 53
- Views: 115259
- Fri Jan 26, 2018 5:12 pm
- Forum: Diversity Operations (PowerSDR & Thetis)
- Topic: Diversity Operations
- Replies: 53
- Views: 115259
Re: Diversity Operations
Hi Scott, all, I remember when you said: As a group we are still not fully exploiting the synchronous receiver capability inherent in these radios. Instead we continue to rely on constructs such as so-called "phasing harnesses" or "array controllers", all of which use coaxial del...
- Tue Aug 01, 2017 6:24 am
- Forum: Diversity Operations (PowerSDR & Thetis)
- Topic: Diversity Operations
- Replies: 53
- Views: 115259
Re: Diversity Operations
Hi,
I think the non-coherent diversity system is similar the one called "voter" used in legacy VHF repeaters.
73, Maximo
I think the non-coherent diversity system is similar the one called "voter" used in legacy VHF repeaters.
73, Maximo