Specifications

2–11
Installation
SCA IN
COMPOSITE IN
MONITOR
R
L
23
REMOTE I/O
RIGHT
LEFT/MONO
1
SCA Inputs
(BNC) Connectors
Illustration 2–12 SCA Input Connectors
2.8 SCA Input Connections
You can connect external SCA generators to the SCA In connectors (BNC-type) on
the rear panel. The inputs are intended for the 60 kHz to 99 kHz range, but a
lower frequency may be used if the transmitter is operated in Mono mode. (The 23
to 53 kHz band is used for stereo transmission.) For 7.5 kHz deviation (10%
modulation), input of approximately 3.5–volts (peak-to-peak) is required.
2.9 Composite Input Connection
To use the Crown transmitter as an RF Exciter only ("E" version or when using the
"T" version with composite input), it is necessary to use the Composite Input
section of the transmitter. This will feed composite stereo (or mono audio) directly
to the RF exciter. In the "T" version, this will bypass the internal audio processor
and stereo generator. See Section 2.12 on the next page for caution in using the
bypass option.
Input sensitivity is approximately 3.5–volt P-P for 75 kHz deviation.
1. Enable the Composite Input by grounding pin 9 of the Remote I/O connector
(see Illustration 2–15).
2. Connect the composite signal using the Composite In BNC connector.