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characteristics when used with FM transmission systems, the
AGC-100 uses standard 75 µ S pre- & de-emphasis internally.
Some applications may require either no internal pre- & de-
emphasis, or internal pre-emphasis without de-emphasis, to feed
an un-pre-emphasized FM transmitter.
Any combination of emphasis may be selected, for either channel,
by repositioning internal jumper-jacks (one pre-emphasis/flat
jumper & one de-emphasis/flat jumper for each of the two channels,
total: four emphasis jumpers).
Emphasis is selected by placing the appropriate jumpers in their
right-side positions. Emphasis is de-selected (flat) by placing the
appropriate jumpers in their left-side positions. The pair of jumpers
near the front of the circuit board activates pre-emphasis; the left
jumper is for the left channel, and the right jumper is for the right
channel. The pair of jumpers near the rear of the circuit board
activates de-emphasis; again, the jumper on the left is for the left
channel, and the jumper on the right is for the right channel.
Some applications may require the output to have the standard 75
µ S pre-emphasis used in FM broadcasting; this is easily
accomplished in the AGC-100 by activating pre-emphasis and de-
activating de-emphasis.
INSTALLATION, CONNECTION
3.0
The AGC-100 is normally mounted on a PMU401 or RM-1 Panel
Mount; use the four black #6-32 x 5/8" screws (supplied) to attach
the AGC-100 to the mounting panel.
The connectors on the AGC-100 are screw-terminal type. To wire
them, strip the insulation off the signal wires (approx. 3/8"), slip the
wire under the head of the screw, and tighten the screw.
28 Aug 2004
AGC-100
page 4 of 11
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