Chapter 3 OEM7 Receiver Operation
OEM7 Installation and Operation User Manual v4
84
For applications requiring greater precision than what is possible using the on-board Voltage Con-
trolled, Temperature Compensated Crystal Oscillator (VCTCXO), the OEM729 can be connected
to an external, high stability oscillator, at 5 MHz or 10 MHz.
Connect a cable from the external oscillator to the receiver’s external oscillator input connector.
For the OEM729, a MMCX female connector (J1901) is used as shown in
nector and Indicator Locations
on page 36. The receiver does not have to be powered down dur-
ing this operation. However, if handling a card directly, observe anti-static practices. The
OEM729 input impedance is 50 ohms.
When the external oscillator is installed, use the
EXTERNALCLOCK
command (refer to
Commands and Logs Reference Manual
for details) to set the clock type (e.g: cesium, rubidium
or ovenized crystal) and frequency.
