Rear Panel; External Reference Input Connector; High Stability Frequency Reference (Option 1D5 Only) - Agilent Technologies 4294A Operating Manual

Front/Rear Panel and LCD Display

Rear Panel

Rear Panel
Figure 3-2 Rear Panel

1. External Reference Input Connector

Allows you to connect an external frequency reference signal to the Agilent 4294A so that
its internal signal is phase locked to the external frequency reference signal to achieve a
more accurate frequency.
If Option 1D5 (High Stability Frequency Reference) is installed, connect the supplied
BNC(m)-BNC(m) adapter between this connector and "2. High Stability Frequency
Reference (Option 1D5 Only)".
When an external frequency reference signal is input to this connector, the Agilent 4294A's
test signal is automatically phase locked to that reference signal. When the reference signal
stops, the Agilent 4294A will automatically revert to its internal frequency reference
signal.

2. High Stability Frequency Reference (Option 1D5 Only)

This connector is intended for Option 1D5 (High Stability Frequency Reference) to output
the reference signal. If Option 1D5 is installed, connect the supplied BNC(m)-BNC(m)
adapter between this connector and Åu1. External Reference Input ConnectorÅv.
50 Chapter 3