Tone Burst - Icom ID-31A Advanced Instructions

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Tone Burst

DUP/TONE... > Tone Burst(TONE BURST)
Turn the Tone Burst function for the FM mode ON or OFF.
• OFF : When you transmit a signal that superimposes the CTCSS tone or
subaudible tone, a short burst of noise may be heard on the from
the receiver, just after you stop transmitting.
• ON : When you transmit a signal that superimposes the CTCSS tone or
subaudible tone, the noise is suppressed in the receiver.
DTCS Code
DUP/TONE... > DTCS Code(DTCS CODE)
Selects a DTCS (both encoder/decoder) code for the DTCS squelch. A
total of 104 codes (023–754) are selectable.
• Available DTCS codes
023 072 152 244
025 073 155 245
026 074 156 246
031 114 162 251
032 115 165 252
036 116 172 255
043 122 174 261
205 263
047 125
051 131 212 265
053 132 223 266
054 134 225 271
065 143 226 274
071 145 243 306
DTCS Polarity
DUP/TONE... > DTCS Polarity(DTCS POLARITY)
Select the DTCS polarity to use for transmitting and receiving.
• Both N : Normal polarity is used for both TX and RX.
• TN-RR : Normal polarity is used for TX; Reverse polarity for RX.
• TR-RN : Reverse polarity is used for TX; Normal polarity for RX.
• Both R : Reverse polarity is used for both TX and RX.
DTCS code's polarity for transmitting or receiving can be independently set
with this item.
Digital Code
DUP/TONE... > Digital Code(DIGITAL CODE)
Sets the desired digital code for digital code squelch.
A total of 100 codes (00–99) are selectable.
10-13
MENU SCREEN OPERATION
412 466 631
311
315 413 503 632
325 423 506 654
331 431 516 662
332 432 523 664
343 445 526 703
346 446 532 712
351 452 546 723
356 454 565 731
364 455 606 732
365 462 612 734
743
371 464 624
411 465 627 754
10
(Default: OFF)
(Default: 023)
10
(Default: Both N)
(Default: 00)