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Direction Finders
(Continued from page 195)
GOING OUR WAY?
ENGINEERS and PHYSICISTS are going
one direction at MOTOROLA ...UP!
We, at Motorola, know where we're going -and
we're confident about getting there. If you, too,
believe there's plenty of room at the very top -
why not join us? You'll be teaming up with men of
vision in an organization that respects creativeness
as well as hard work. We think you'll grow
with the challenging assignments at Motorola -
missile guidance, radar, microwave, and the many
other pioneering projects.
Motorola's continuing expansion program offers
excellent opportunity for advancement to match
your abilities. But, just as important to an engineer
or physicist, the daily challenge to the imaginaton
will bring the strong sense of accomplishment
you seek.
If you're an electrical engineer, mechanical engineer, physicist, physical chemist or
metallurgist (senior or junior level), and looking for more important assignments in:
Two -Way Communications
Receivers and Transmitters
Power Supply
Antenna design
Systems Engineering
Microwave
Pulse Circuit Design
Systems Design
Circuit Design
Field Engineers
Microwave Maintenance
Airborne Radar
CHICAGO, ILLINOIS
PHOENIX,
Research Laboratory
Microwave Antennas
Transmitters and Receivers
Modulators
Pulse and Video Circuitry
Environmental Test
Packaging of Missile Borne
Electronic Equipment
Radar Systems Design
Logical Circuitry
Servo Mechanisms
RIVERSIDE, CALIFORNIA
Military Operation Analysis
Dynamics Analysis
Analog Computor Flight Simulation
Digital Computor Analysis
Digital Computor Design
For Assignments with a
Military Communications
Receiver and Transmitter Design
Circuit Design
Antenna Design
Radar Design
Consumer Products
Television (color) Engineering
Radio and Car Radio Engineering
Transistor Engineering
ARIZONA
Transistor Applications
Electro- Mechanical Devices
Semi Conductor Division
Transistor Application Engineers
Physical Chemists
Metallurgists
Physicists
Production Engineers
Transistor Device
Development Engineers
(65 miles from Los Angeles)
Circuit Design
Microwave Systems
Servo Mechanisms
Missile Systems
Aerophysics
MOTOROLA, I
FUTURE UNLIMITED write:
N C .
Engineering Personnel Mgr., 4501 W. Augusta Blvd., Chicago 51, Illinois
operating frequency changes is
kept to a minimum. In addition,
the receiver has a long AVC time
constant of approximately 2 secs.
to maintain the receiver gain constant
during the sampling period
so that the correct ratio of signals
is maintained.
220
240
260
2e0
<
w 300
2
z
320
340
360
380
400
MICROVOLTS PER METER
o v 4s
Fig. 10: Av. sensitivity of 16 systems
A target transmitter feeds an
omnidirectional antenna placed accurately
in line with the D/F
antennas and the resulting signal
is used for system calibration and
self- check. This unit possesses crystal
controlled channel capabilities
commensurate with the D/F
receiver and provides approximately
1 v. of signal energy to the target
antenna cable. The unit is built to
laboratory signal generator standards
and has a calibrated adjustable
output from 0.5 µv to 0.5 v. in
addition to the fixed 1 v. output.
Both the receiver and transmitter
were developed under an Air Force
contract by Collins Radio Co.
The local control unit in conjunction
with a remote control unit
permits complete control of the
196 For product information, use inquiry cord on pages 209 -210. Tele -Tech & ELECTRONIC INDUSTRIES June 1956