Bird Technologies 4201 Series - Manual (Page 16)

2. If you are using power sensors, attach the cables to the
power sensors. Attach the forward meter cable to the for-
ward feed-thru on the power sensors, and the reflected meter
cable to the reflected feed-thru. Attach by soldering the cable
to the feed-thru. Repeat for each transmitter. Refer to figure
3.
3. Install the line sections, or power sensors, into the trans-
mission lines. Refer to figure 4 for the proper direction of
installation.
CAUTION
Do not drop the instrument or Plug-In Elements. The meter may be damaged, or the
accuracy of the elements could be affected.
Installation of Meter The wattmeter is for rack mount purposes. Four machine screws fasten the watt-
meter panel in the selected position on a relay rack, using the pattern of tapped
holes regularly provided in standard racks. Follow these instructions for mounting.
1. Choose a location for easy reading and operation of the
wattmeter. Place the wattmeter where the cable lengths will
be short and can be installed without tight bends in the
cables.
2. Using the four screws, install the wattmeter to the rack.
Make sure all connections are secure.
Phono Plugs The phono plugs are color coded for ease of installation. Forward inputs are white,
Reflected inputs are red.
+
Note: Make sure to attach the forward meter to the forward side of the line
section or power sensor. Attach the reflected meter to the reflected side of the
line section or power sensor.
RFL
MOD.
806-960 MHz
FWD 60 W
S/N
POWER SENSOR R
4169-300
6.0 W
Feed-Thru
Connectors
Connectors
Fem-N (2)
Phono Connector Figure 3
Power
Sensor and
Cable
RFL
MOD.
806-960 MHz
FWD 60 W
S/N
POWER SENSOR
R
4169-300
6.0 W
Output
Input
FWD RFL
Figure 4
Forward and
Reflected
Designations
Bird Series 4201 Multi-Channel RF Directional Wattmeter
6