| Products > Test Equipment |
| Upgrading Counter 53220A to Option 010 Ultra High-stability OCXO Timebase? |
| << < (4/14) > >> |
| carl_lab:
--- Quote from: lukier on November 17, 2016, 04:22:48 pm ---I think typically you would have one GPSDO for the facility and then a distribution amplifier to spread the 10 MHz around to the counters. --- End quote --- You're right, that's the better way of course, but I think installation of an antenna on roof of the production hall will not be allowed whilst other alternatives are possible (rubidium?). |
| nfmax:
We use a lot of GPS aerials here, mounted inside a typical industrial estate metal-clad building with plastic roof light panels. Presumably enough signal makes it through the polycarbonate (?) panels to make it work. We use GPS to control the time-of-day clocks on the data acquisition systems we make, so we need the 'real thing' for testing, not just a GPSDO. |
| Dr. Frank:
--- Quote from: carl_lab on November 17, 2016, 04:09:08 pm ---,... Main purpose of the 53220A counters is adjustment of vehicle clocks (dashboard instruments). .... --- End quote --- Hi, for which company are you working? Frank |
| Dr. Frank:
--- Quote from: carl_lab on November 17, 2016, 04:40:19 pm --- --- Quote from: lukier on November 17, 2016, 04:22:48 pm ---I think typically you would have one GPSDO for the facility and then a distribution amplifier to spread the 10 MHz around to the counters. --- End quote --- You're right, that's the better way of course, but I think installation of an antenna on roof of the production hall will not be allowed whilst other alternatives are possible (rubidium?). --- End quote --- I think, for that purpose, an internal or external OCXO is fully sufficient, Rb or GPSDO is overkill. Requirement for the uncertainty of this clock adjustment is on the order of 0.1ppm. Maybe a frequently calibrated TCXO will also do the job. This can easily be done by means of a GPSDO, but in the cal lab, where it belongs to. Does your company have a lack of budget, as such an instrument w/o proper OCXO had been ordered? |O Frank |
| plesa:
I just tried to disassemble unit (stickers are not problem, they are not brittle) but the OCXO is below RF module :-// So sorry I will not remove it. Like other mentioned only R854 0R resistor is placed on bottom. Module footprint is really small. |
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