User Manual

Table Of Contents
DE
DANIELS
ELECTRONICS
2-10 UT-4R400 UHF Project 25
Digital
Transmitter
Instruction
Manual
2.13.2.11 Analog
Signaling
Settings:
CTCSS
Tone
This field allows
selection
of any of 42 EIA CTCSS tones.
2.13.2.12 Analog
Signaling
Settings:
Reverse Burst
For CTCSS channels only: When this field is set to “Enabled”, each transmission is
terminated
with a short burst of CTCSS tone with its phase reversed 180 degrees. This allows
suitably
equipped
receivers
to squelch their audio
circuits
before the
transmitted
carrier
is dropped, giving a
silent
squelch operation.
2.13.2.13 Analog
Signaling
Settings:
DCS
Code
This field allows sel
ection
of any of 83 DCS tones.
2.13.2.14 Analog
Signaling
Settings:
Turnoff Code
For DCS channels only: When this field is set to “Enabled”, each transmission is
terminated
with
a short burst of 138 Hz tone. This allows
suitably
equipped
receivers
to squelch their audio
circuits
before the
transmitted
carrier
is dropped, giving a
silent
squelch operation.
2.13.2.15 Analog
Squelch
Settings:
Invert
DCS
This
setting
is in
effect
when the Squelch Type is set to DCS. It may be set to Normal DCS or
Invert DCS. When Invert DCS is selected, the
transmitter
will broadcast a DCS signal whose
polarity
is reversed. This should not be required unless the
distant
receiver
has its DCS configured
with the wrong polarity,
typically
when DCS has been
installed
as an
after-market
option.