Operation & Service Manual
Section II
Model 1805B RF Control Unit
Installation and Shipment
± 1°C gives allowable temperature spread. Controlled temperatures also stabilize the aging
process of the standards.
It is recommended that the Model 1805B and other equipment be supplied with power from
stabilized power supplies.
PREPARATION FOR USE
The following paragraphs provide mounting instructions, Initial Setup, line voltage and fuse
selection, and input/output options for the Model 1805B RF Control Unit.
MOUNTING INSTRUCTIONS
The RF Control Unit is shipped with four plastic feet mounted to the bottom cover. This
allows the user to place the instrument on any bench or to stack the Model 1805B with other
TEGAM instruments. When the instrument is placed on a bench or table, these feet provide a
level support. Model 1805B can be connected to the Model 1807A or other TEGAM half-rack
instruments to create a 19 inch stackable bench instrument (Figure 2-1) or can be mounted in
any cabinet or rack according to EIA RS-310 or MIL-STD-189 using Model 1919 Rack
Adapter Kit
Figure 2-1 Model 1805B/1807A Bench Configuration
INITIAL SETUP
The initial setup procedure for operating the Model 1805B RF Control Unit is as follows;
a. Perform inspection prior to connecting the Model 1805B to any power source.
b. Ensure the Voltage Selector/Fuse Assembly is adjusted to the proper voltage setting.
c. Check that the external power source outputs to the Model 1805B are in accordance with
Table 1-1, RF Control Unit Specifications.
d. Connect equipment using Figures 2-6 and 2-7 as a guideline. Consult other instrument
manuals, or IM-198 for other specific connection and setup information for configuring
the Model 1805B as part of the System IIA Precision Power Source.
INPUT/OUTPUT OPTIONS
The following paragraphs provide a description of the connections that can be made to the
Model 1805B RF Control Unit. Figures 2-2 and 2-3 show the location of these connectors.
!
2-2
WARNING
