Time Dissemination by Telephone(TEL-JJY)
Appendix
- 1. Loop back method which can be used in measuring of delay time
- Loop back circuit is realized by a hardware with the
relay contact.
Total delay measured by the system is the sum of the following:
a. Delay for the round trip
b. Instrumental delay of the transmission modem
c. Instrumental delay of the receiving modem
- 2. Communication flow with the exclusive receiver
- Standard connecting process is shown below.
(Click the picture above to see larger picture)