Empathy List Archives

S

siddsubra@gmail.com

Sat, Nov 19, 2022 8:41 PM

Does anyone have any experience using the Jackson Labs LC_XO, TCXO GPSDO?

A colleague is ordering one for a separate using case but from reviewing the spec sheet and schematic it seems like it would fit right on the GPSDO slot for a B200/B210? Has anyone used this GPSDO on a USRP before? Would it be compatible?

Thanks,

Sidd

Does anyone have any experience using the Jackson Labs LC_XO, TCXO GPSDO? A colleague is ordering one for a separate using case but from reviewing the spec sheet and schematic it seems like it would fit right on the GPSDO slot for a B200/B210? Has anyone used this GPSDO on a USRP before? Would it be compatible? Thanks, Sidd

MD

Marcus D. Leech

Sat, Nov 19, 2022 9:43 PM

On 19/11/2022 15:41, siddsubra@gmail.com wrote:

Does anyone have any experience using the Jackson Labs LC_XO, TCXO GPSDO?

A colleague is ordering one for a separate using case but from
reviewing the spec sheet and schematic it seems like it would fit
right on the GPSDO slot for a B200/B210? Has anyone used this GPSDO on
a USRP before? Would it be compatible?

Thanks,

Sidd

The LC_XO is in fact the module that Ettus uses for the B2xx series, but
I think that the version they use
(and sell) has modified firmware.

On 19/11/2022 15:41, siddsubra@gmail.com wrote: > > Does anyone have any experience using the Jackson Labs LC_XO, TCXO GPSDO? > > > A colleague is ordering one for a separate using case but from > reviewing the spec sheet and schematic it seems like it would fit > right on the GPSDO slot for a B200/B210? Has anyone used this GPSDO on > a USRP before? Would it be compatible? > > > Thanks, > > Sidd > > The LC_XO is in fact the module that Ettus uses for the B2xx series, but I *think* that the version they use (and sell) has modified firmware.

S

siddsubra@gmail.com

Sun, Nov 20, 2022 11:22 AM

Would the modified firmware present any serious differences that prevent it from being used with USRPs/UHD?

MD

Marcus D. Leech

Sun, Nov 20, 2022 3:50 PM

On 20/11/2022 06:22, siddsubra@gmail.com wrote:

Would the modified firmware present any serious differences that
prevent it from being used with USRPs/UHD?

I can't give you a perfectly reliable answer. I've never used anything
other than the Ettus-supplied LC_XO.

One of the mods I'm aware of is that the Jackson Labs GPSDOs generally
don't start producing their 10MHz and 1PPS signals
until they have GPS lock, and the modified ones produce them from
start-up.

Other differences may be things like whether they produce NMEA or
proprietary output strings by default, etc.

On 20/11/2022 06:22, siddsubra@gmail.com wrote: > > Would the modified firmware present any serious differences that > prevent it from being used with USRPs/UHD? > > I can't give you a perfectly reliable answer. I've never used anything other than the Ettus-supplied LC_XO. One of the mods I'm aware of is that the Jackson Labs GPSDOs generally don't start producing their 10MHz and 1PPS signals until they have GPS lock, and the modified ones produce them from start-up. Other differences may be things like whether they produce NMEA or proprietary output strings by default, etc.

usrp-users@lists.ettus.com

Jackson Labs LC_XO