19-04-2024, 12:55 AM
(21-07-2021, 03:34 PM)jimmc101 Wrote: A quick update that may be of interest; I recently came across a very cheap source of OCXOs that are suited for this project (CTI OSC5A2B02)
Cost was £9.21 for 5 including VAT, P&P from Aliexpress. Although a little battered all 5 were within specification.
Radio frequency 1988 store
Spec is here
ebay_queen's_land
With this OCXO the loop time constant is 13.3 sec so I increased C3 to 180uF (T= 4sec)
Stability was improved at the cost of slightly increased warm-up time and power consumption.
Jim
Hi Jim. I've got that same OCXO but according to my measurements, Kv=43,98 rad/s/V. So that would be a time constant of approximately 2,3sec
How did you get to obtain 13.3sec?
