Hello, I was reading the 2016 paper by Ibrahim & Galal (ETRI journal 38, 3, 2016) about tuning hops. The authors present a tuning algorithm with a sequence of none-manual and manual-manual tunings. Are their results still valid after 10 yrs or is there a faster algo? Is there a way to detect the state of the PLL during tuning? What are the frequency limits of the SBX-120 LO? TIA Nikos

On 2025-05-24 09:48, Nikos Balkanas wrote: > Hello, > > I was reading the 2016 paper by Ibrahim & Galal (ETRI journal 38, 3, > 2016) about tuning hops. > The authors present a tuning algorithm with a sequence of none-manual > and manual-manual tunings. Are their results still valid after 10 yrs > or is there a faster algo? > > Is there a way to detect the state of the PLL during tuning? > What are the frequency limits of the SBX-120 LO? > > TIA > Nikos > > _______________________________________________ > USRP-users mailing list --usrp-users@lists.ettus.com > To unsubscribe send an email tousrp-users-leave@lists.ettus.com There's an "lo_locked" sensor on many of the RF daughterboards: https://files.ettus.com/manual/page_general.html#general_tuning_dsp_sign The SBX uses the ADF4350 PLL synthesizer, so the LO limits would be dictated by that chip, and the capabilities of the mixer chip, the ADL5380.

Ty so much:) Nikos On Sat, May 24, 2025 at 5:56 PM Marcus D. Leech <patchvonbraun@gmail.com> wrote: > On 2025-05-24 09:48, Nikos Balkanas wrote: > > Hello, > > I was reading the 2016 paper by Ibrahim & Galal (ETRI journal 38, 3, 2016) > about tuning hops. > The authors present a tuning algorithm with a sequence of none-manual and > manual-manual tunings. Are their results still valid after 10 yrs or is > there a faster algo? > > Is there a way to detect the state of the PLL during tuning? > What are the frequency limits of the SBX-120 LO? > > TIA > Nikos > > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-leave@lists.ettus.com > > There's an "lo_locked" sensor on many of the RF daughterboards: > > https://files.ettus.com/manual/page_general.html#general_tuning_dsp_sign > > The SBX uses the ADF4350 PLL synthesizer, so the LO limits would be > dictated by that chip, and the capabilities of the mixer chip, the ADL5380. > > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-leave@lists.ettus.com >