Crazy George wrote:
"---do a bibliographic search of Engineering Index, or Scientific
Abstracts, or whatever that school has access to."

Excellent advice from George. Motorola`s Extender usually included a
switch on the radio control head to enable or defeat Extender operation.
The only reason I can think of to defeat Extender operation is to
demonstrate its effectiveness, which can be compelling.

The Extender works early and often to put a hole in the radio`s response
before adverse effects are generated within. The holes rarely detract
significantly from the signal.

Also look for Motorola TEK 21 Pulse Generator instructions. It is a
hand-held, battery-operated, zener diode noise maker used to optimize
Extender performance in the radio. The TEK 21 saves overheating a car
engine just to make ignition noise pulses to obliterate while tweaking
the Extender circuit and the the radio`s response.

Best regards, Richard Harrison, KB5WZI