User's Manual

M7X and M7R Page 4-33 Installation
Back to Menu
10 MHz Reference Frequency
The Reference Frequency connector (see Fig 4-4 on page 4-6) is a BNC socket marked 10 MHz.
This connector is used to connect an external reference frequency. The applied signal (if used) should
be 400 mV rms ± 200 mV.
If an external reference frequency is used, the Radio Config Reference Select must be set to ‘External’
as shown in Fig 4-15. Setting up the radio, which includes Radio Config (configuration), is detailed in the
Operation topic.
Fig 4-15 Select External Reference