Daniels VT-4R150 Instruction Manual
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Contents
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DEDANIELSELECTRONICS2-10 VT-4R150 VHF Project 25 Digital Transmitter Instruction Manual2.13.2.11 Analog Signaling Settings: CTCSS ToneThis field allows selection of any of 42 EIA CTCSS tones.2.13.2.12 Analog Signaling Settings: Reverse BurstFor CTCSS channels only: When this field is set to “Enabled”, each transmission is terminatedwith a short burst of CTCSS tone with its phase reversed 180 degrees. This allows suitablyequipped receivers to squelch their audio circuits before the transmitted carrier is dropped, giving asilent squelch operation.2.13.2.13 Analog Signaling Settings: DCS CodeThis field allows selection of any of 83 DCS tones.2.13.2.14 Analog Signaling Settings: Turnoff CodeFor DCS channels only: When this field is set to “Enabled”, each transmission is terminated witha short burst of 138 Hz tone. This allows suitably equipped receivers to squelch their audiocircuits before the transmitted carrier is dropped, giving a silent squelch operation.2.13.2.15 Analog Squelch Settings: Invert DCSThis setting is in effect when the Squelch Type is set to DCS. It may be set to Normal DCS orInvert DCS. When Invert DCS is selected, the transmitter will broadcast a DCS signal whosepolarity is reversed. This should not be required unless the distant receiver has its DCS configuredwith the wrong polarity, typically when DCS has been installed as an after-market option. |
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