Bob wrote:
The strange temperature chip in the later TBolts isn't much of an issue. The chip is poorly located for temperature control. It only seems to impact the plots on Lady Heather. Trimble wasn't bothered enough by it to patch the firmware.
My experience is consistent with this. While switching the chip on one, I used the opportunity to bring the chip temporarily outside of the Tbolt housing on a cable to investigate whether the Tbolt makes any use of the temperature data. Neither freeze spray nor bringing a soldering iron near the chip, when it was outside the Tbolt housing and the housing was insulated from the changes in chip temperature, seemed to have any effect on the operation of the Tbolt, either normal or in holdover. I have also run Tbolts with the new temperature chips for long periods, and have not observed any systematic differences in performance between them and units with the older chips, either in normal operation or in holdover.
I suspect that the temperature sensor was provided so telcom operators could get a rough idea of the temperature in remote cell-site transmitter shacks.
Best regards, Charles _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
