1100-AR
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INTRODUCTION
This instruction manual provides operation and maintenance information for the Model 1100-AR
Telemetry Receiver designed and manufactured by Microdyne Corporation. The 1100-AR is a
highly adaptable, completely modularized receiver which can be easily integrated into ground
station and laboratory applications by simply selecting the module complement on order.
Being extremely versatile, the 1100-AR can be easily configured as a low cost general purpose
receiver supplying the minimum number of outputs, or as a complex data receiver with prede-
rtection record and playback capabilities, automatic search and lock for signal acquisition, and
spectrum analysis by simply selecting the module complement. An example of the receiver's
versatility is readily apparent with the two types of rf tuners and i-f filter/amplifiers now
available. These modules can be supplied in electro-mechanically and fixed tuned versions or
in voltage tuned versions. The advantage of voltage tuned versions is that a receiver equipped
with these modules can be controlled in frequency and bandwidth by analog inputs from a com
puter or remote console allowing for completely automated ground stations. Electro-
mechanically and fixed tuned versions, while not being able to be computer controlled, offer
the same signal handling capabilities and operating parameters as the voltage tuned models.
Another feature which proves advantageous under certain conditions but relatively superfluous
in others is the anti-sideband lock option of the wide angle phase demodulators. This feature
prevents the receiver from locking on a sideband of a phase modulated carrier during the re-
acquisition cycle in applications where signal dropout is expected and frequent. Thus, opera
tor time expended in monitoring receiver status or manually reacquiring phaselock is reduced
to an absolute minimum. The receiver afc system may also be "tailored to fit" customer re-
rquirements with two types of afc circuits available. One circuit is a low cost unit which pro
vides automatic frequency control only. The second type, being more complex, not only pro
vides automatic frequency control but also automatically sweeps an adjustable search range
upon loss of signal. This sweeping function continues until a signal of sufficient strength ap
pears in the i-f passband at which time lock is automatically resumed.
Because of the many combinations of modules available for the 1100-AR, this manual is con
structed to be readily adaptable to any receiver configuration. It is composed of nine indi
vidual sections preceded by a module complement page and contents pages. The module com
plement page is checked according to which modules are supplied in the associated receiver
configuration. Using the information presented on this page, Sections I through VII can be
modified as required to match the receiver. For example, if the applicable receiver does not
contain predetection playback or record capabilities, the information pertaining to these items
can be designated as not applicable. Similarly, should the receiver be equipped with the afc
search and lock capability, only the portion of the afc system description dealing with that par
ticular configuration need be applied. Maintenance procedures, replacement parts lists, and
schematic diagrams are adapted in a like manner.
Manuals supplied for special receivers which have been slightly modified to meet particular
requirements contain a Section VIII. This section thoroughly describes the modification and
the effects it has on overall operating procedures and parameters. Also included in this sec
tion are any special instructions for modifying operating and maintenance procedures, parts
lists, and schematic diagrams.
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