Raytheon snv-12 Quick Start Manual

This Quick Start Guide describes a typical SNV-12 installation with multiple receivers, a single transmitter, and a dispatch console. The SNV-12
voter can be set up for a wide variety of other system configurations; please refer to the manual for advanced capabilities and options.
The SNV-12 is configured and adjusted at the factory for the following;
• FM receivers (use line audio, not discriminator audio)
• 1950 Hz pilot tone from all receivers (the PTG-10 Pilot Tone Generator is available from Raytheon)
• E&M Console keying input to voter (relay closure to ground or low level logic input signal activates the voter's PTT input)
• Hard-wired transmitter keying output (open collector transistor pulls transmitter PTT low; relay contact closure optional – see page 2)
• Full Duplex (each SVM module can simultaneously transmit and receive)
• Repeat Mode is enabled, so voted audio is retransmitted via SVM module #1
• Console Priority is selected, so transmissions from the dispatcher will preempt retransmission of voted audio
• All audio is 600 ohm balanced; input/output audio levels are initially set to -10dBm
Console
SNV-12 Voter Quick Start Guide
_
1
Console TX Audio
TB-13
2
+
PTT
7
_
4
Voted Audio
5
+
Ground
18
SNV-12
+
1
RX Audio / Pilot Tone
_
2
+
4
TB-1
TX Audio
_
5
Ground
20
PTT
18
+
1
RX Audio / Pilot Tone
TB-2
_
2
+
1
RX Audio / Pilot Tone
TB-3
2 _
+
1
RX Audio / Pilot Tone
TB-N
_
2
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Receiver #1
System
Transmitter
Receiver #2
Receiver #3
Receiver #N
Site #1
Site #2
Site #3
Site #N