SPEECH AMPLIFIER

The Speech Amplifier SV4  is a light weight device that enables full duplex (two way) speech over single pair of wires. Communication can even take place over the same wire used for timing impulses. The SV4 is powered by a single 9V battery which will give many days of use under most circumstances. You can daisy change any number of SV4's, timing devices, Photocell Adaptor LA4's and start gates to create a large talk group. We often use a pair of SV4's and a single cable to communicate in excess of  5 kilometers.

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• Full Duplex Communication over a single pair wire

• Can be daisy chained to form large talk group

• Light weight, weather resistant construction

• Low power consumption

• Single 9V Alkaline or NiCd battery

• Easy access cover for changing battery

• Belt clip doubles as a table table

• Adjustable volume control

• Uses standard banana plug connectors

• Model SV41 (pictured) comes with three way switch for constant talk, talk when held and listen only modes.