Nautel Maine Inc VS300 用户手册

VS300 Operations and Maintenance Manual

Operating the transmitter

Issue 0.1  2011-03-11

Page 2-83

Configuring RF drive source

From the front panel UI, you can configure the source of the transmitter’s RF drive (internal or 
external). To view the 

RF Drive Source 

screen, select 

System Settings -> RF Drive Source

 from the 

Main Menu

 (see 

). 

Use the up and down buttons to toggle between 

Internal VS Exciter

 and 

External Exciter

. Press the 

accept (checkmark) button to save the change. Press cancel (

X

) to discard changes and return to the 

previous menu. If you select 

External Exciter

 

for connection details.

Connecting an external analog exciter

Configure the transmitter for an external analog exciter as follows:

1. Change the RF drive source.

2. Turn off the transmitter, remove it from its host cabinet and place it on a suitable work 

surface.

3. Remove the top cover.

4. Disconnect W5P1 from A1J1 and connect it to J4 on the inside of the box.

5. Re-install the top cover and re-insert the transmitter in its host cabinet.

6. With a user-supplied CAT5 cable, connect a wire between A1J1-7 (RF mute) and the the RF 

mute input on the external exciter. Note: The RF mute signal from the VS300 is active low 
and will not function if the external exciter is not configured in the same way.