![Icom IC-U80 Instruction Manual Download Page 40](http://html1.mh-extra.com/html/icom/ic-u80/ic-u80_instruction-manual_2038107040.webp)
34
D
Setting DTCS polarity
For DTCS operation, the polarity setting is also configurable,
as well as the code setting. If the polarity is different, the
DTCS squelch will never open, even when receiving a signal
that includes a matched DTCS code.
q
Push
[FUNC](
M
), and then
[SET](8) to enter the Set mode.
w
Push
[
p
] or [
q
] to select the DTCS polarity item (dtP).
e
Rotate
[VOL] to set the desired polarity setting to “dtP.nn”
(normal)
, “dtP.nR”
(TX: normal, RX: reverse)
, “dtP.Rn”
(TX: re-
verse, RX: normal)
or “dtP.RR”
(reverse)
.
r
Push
[# ENT] to exit the Set mode.
NOTE: When you use the DTCS encoder, the DTCS po-
larity setting affects only transmitting.
D
Operation
q
Set a desired operating frequency, and then a CTCSS tone
or a DTCS code.
w
Push
[FUNC](
M
), and then
[TONE](1).
•
Repeat step
w
one or more times to activate a desired tone
function.
e
Operate the transceiver in the normal way.
8
TONE SQUELCH AND POCKET BEEP
TX/RX: Normal polarity
TX: Normal, RX: Reverse
TX: Reverse, RX: Normal
TX/RX: Reverse polarity
Function OFF
Tone squelch with
pocket beep
Tone squelch
DTCS encoder
DTCS squelch
DTCS squelch with
pocket beep
Repeater tone
: Push , and then .